Major cleanup.

Added todo comments to many 1.13 issues still lingering. Changed access to some methods to be weaker. Removed cluster flags (most of it). Java 8 stuff added. Hid more PlotSetting methods. etc.

Signed-off-by: matt <4009945+MattBDev@users.noreply.github.com>

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/BukkitMain.java

@@ -134,7 +134,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
     private final BlockRegistry<Material> blockRegistry =
         new BukkitBlockRegistry(Material.values());
     private int[] version;
-    @Getter private String pluginName;
+    private String pluginName;
     @Getter private SingleWorldListener singleWorldListener;
     private Method methodUnloadChunk0;
     private boolean methodUnloadSetup = false;
@@ -165,9 +165,9 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         return Bukkit.getVersion();
     }
 
+
     @Override public void onEnable() {
         this.pluginName = getDescription().getName();
-        getServer().getName();
 
         PlotPlayer.registerConverter(Player.class, BukkitUtil::getPlayer);
 
@@ -319,6 +319,11 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         return getDescription().getVersion();
     }
 
+    @Override
+    public String getPluginName() {
+        return pluginName;
+    }
+
     @Override public void registerCommands() {
         final BukkitCommand bukkitCommand = new BukkitCommand();
         final PluginCommand plotCommand = getCommand("plots");
@@ -586,6 +591,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
 
     @Override @Nullable
     public final ChunkGenerator getDefaultWorldGenerator(final String world, final String id) {
+        PlotSquared.log("DEFAULT WORLD GENERATOR RUN");
         final IndependentPlotGenerator result;
         if (id != null && id.equalsIgnoreCase("single")) {
             result = new SingleWorldGenerator();
@@ -802,7 +808,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         }
         ChunkGenerator gen = world.getGenerator();
         if (gen instanceof BukkitPlotGenerator) {
-            PlotSquared.get().loadWorld(worldName, (BukkitPlotGenerator) gen);
+            PlotSquared.get().loadWorld(worldName, (GeneratorWrapper<?>) gen);
         } else if (gen != null) {
             PlotSquared.get().loadWorld(worldName, new BukkitPlotGenerator(worldName, gen));
         } else if (PlotSquared.get().worlds.contains("worlds." + worldName)) {

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/chat/FancyMessage.java

@@ -320,34 +320,6 @@ public class FancyMessage
         return this;
     }
 
-    /**
-     * Set the behavior of the current editing component to display information about an achievement when the client hovers over the text.
-     * <p>Tooltips do not inherit display characteristics, such as color and styles, from the message component on which they are applied.</p>
-     *
-     * @param which The achievement to display.
-     * @return This builder instance.
-     */
-    public FancyMessage achievementTooltip(final Achievement which) {
-        try {
-            Object achievement = Reflection
-                .getMethod(Reflection.getOBCClass("CraftStatistic"), "getNMSAchievement",
-                    Achievement.class).invoke(null, which);
-            return achievementTooltip(
-                (String) Reflection.getField(Reflection.getNMSClass("Achievement"), "name")
-                    .get(achievement));
-        } catch (IllegalAccessException e) {
-            Bukkit.getLogger().log(Level.WARNING, "Could not access method.", e);
-            return this;
-        } catch (IllegalArgumentException e) {
-            Bukkit.getLogger().log(Level.WARNING, "Argument could not be passed.", e);
-            return this;
-        } catch (InvocationTargetException e) {
-            Bukkit.getLogger()
-                .log(Level.WARNING, "A error has occurred during invoking of method.", e);
-            return this;
-        }
-    }
-
     /**
      * Set the behavior of the current editing component to display information about a parameterless statistic when the client hovers over the text.
      * <p>Tooltips do not inherit display characteristics, such as color and styles, from the message component on which they are applied.</p>

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/events/ClusterFlagRemoveEvent.java

@@ -1,63 +0,0 @@
-package com.github.intellectualsites.plotsquared.bukkit.events;
-
-import com.github.intellectualsites.plotsquared.plot.flag.Flag;
-import com.github.intellectualsites.plotsquared.plot.object.PlotCluster;
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
-import org.bukkit.event.HandlerList;
-
-/**
- * Called when a flag is removed from a plot.
- */
-public class ClusterFlagRemoveEvent extends Event implements Cancellable {
-
-    private static final HandlerList handlers = new HandlerList();
-    private final PlotCluster cluster;
-    private final Flag flag;
-    private boolean cancelled;
-
-    /**
-     * PlotFlagRemoveEvent: Called when a flag is removed from a plot.
-     *
-     * @param flag    Flag that was removed
-     * @param cluster PlotCluster from which the flag was removed
-     */
-    public ClusterFlagRemoveEvent(Flag flag, PlotCluster cluster) {
-        this.cluster = cluster;
-        this.flag = flag;
-    }
-
-    public static HandlerList getHandlerList() {
-        return handlers;
-    }
-
-    /**
-     * Get the cluster involved.
-     *
-     * @return PlotCluster
-     */
-    public PlotCluster getCluster() {
-        return this.cluster;
-    }
-
-    /**
-     * Get the flag involved.
-     *
-     * @return Flag
-     */
-    public Flag getFlag() {
-        return this.flag;
-    }
-
-    @Override public HandlerList getHandlers() {
-        return handlers;
-    }
-
-    @Override public boolean isCancelled() {
-        return this.cancelled;
-    }
-
-    @Override public void setCancelled(boolean b) {
-        this.cancelled = b;
-    }
-}

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/ChunkListener.java

@@ -1,5 +1,7 @@
 package com.github.intellectualsites.plotsquared.bukkit.listeners;
 
+import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
+
 import com.github.intellectualsites.plotsquared.plot.PlotSquared;
 import com.github.intellectualsites.plotsquared.plot.config.C;
 import com.github.intellectualsites.plotsquared.plot.config.Settings;
@@ -9,6 +11,8 @@ import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.RefCla
 import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.RefField;
 import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.RefMethod;
 import com.github.intellectualsites.plotsquared.plot.util.TaskManager;
+import java.lang.reflect.Method;
+import java.util.HashSet;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.Material;
@@ -27,11 +31,6 @@ import org.bukkit.event.entity.ItemSpawnEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
 
-import java.lang.reflect.Method;
-import java.util.HashSet;
-
-import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
-
 @SuppressWarnings("unused")
 public class ChunkListener implements Listener {
 
@@ -60,48 +59,46 @@ public class ChunkListener implements Listener {
         for (World world : Bukkit.getWorlds()) {
             world.setAutoSave(false);
         }
-        TaskManager.runTaskRepeat(new Runnable() {
-            @Override public void run() {
-                try {
-                    HashSet<Chunk> toUnload = new HashSet<>();
-                    for (World world : Bukkit.getWorlds()) {
-                        String worldName = world.getName();
-                        if (!PlotSquared.get().hasPlotArea(worldName)) {
+        TaskManager.runTaskRepeat(() -> {
+            try {
+                HashSet<Chunk> toUnload = new HashSet<>();
+                for (World world : Bukkit.getWorlds()) {
+                    String worldName = world.getName();
+                    if (!PlotSquared.get().hasPlotArea(worldName)) {
+                        continue;
+                    }
+                    Object w = world.getClass().getDeclaredMethod("getHandle").invoke(world);
+                    Object chunkMap =
+                        w.getClass().getDeclaredMethod("getPlayerChunkMap").invoke(w);
+                    Method methodIsChunkInUse = chunkMap.getClass()
+                        .getDeclaredMethod("isChunkInUse", int.class, int.class);
+                    Chunk[] chunks = world.getLoadedChunks();
+                    for (Chunk chunk : chunks) {
+                        if ((boolean) methodIsChunkInUse
+                            .invoke(chunkMap, chunk.getX(), chunk.getZ())) {
                             continue;
                         }
-                        Object w = world.getClass().getDeclaredMethod("getHandle").invoke(world);
-                        Object chunkMap =
-                            w.getClass().getDeclaredMethod("getPlayerChunkMap").invoke(w);
-                        Method methodIsChunkInUse = chunkMap.getClass()
-                            .getDeclaredMethod("isChunkInUse", int.class, int.class);
-                        Chunk[] chunks = world.getLoadedChunks();
-                        for (Chunk chunk : chunks) {
-                            if ((boolean) methodIsChunkInUse
-                                .invoke(chunkMap, chunk.getX(), chunk.getZ())) {
-                                continue;
-                            }
-                            int x = chunk.getX();
-                            int z = chunk.getZ();
-                            if (!shouldSave(worldName, x, z)) {
-                                unloadChunk(worldName, chunk, false);
-                                continue;
-                            }
-                            toUnload.add(chunk);
+                        int x = chunk.getX();
+                        int z = chunk.getZ();
+                        if (!shouldSave(worldName, x, z)) {
+                            unloadChunk(worldName, chunk, false);
+                            continue;
                         }
+                        toUnload.add(chunk);
                     }
-                    if (toUnload.isEmpty()) {
+                }
+                if (toUnload.isEmpty()) {
+                    return;
+                }
+                long start = System.currentTimeMillis();
+                for (Chunk chunk : toUnload) {
+                    if (System.currentTimeMillis() - start > 5) {
                         return;
                     }
-                    long start = System.currentTimeMillis();
-                    for (Chunk chunk : toUnload) {
-                        if (System.currentTimeMillis() - start > 5) {
-                            return;
-                        }
-                        chunk.unload(true, false);
-                    }
-                } catch (Throwable e) {
-                    e.printStackTrace();
+                    chunk.unload(true, false);
                 }
+            } catch (Throwable e) {
+                e.printStackTrace();
             }
         }, 1);
     }
@@ -112,7 +109,7 @@ public class ChunkListener implements Listener {
         }
         Object c = this.methodGetHandleChunk.of(chunk).call();
         RefField.RefExecutor field = this.mustSave.of(c);
-        if ((Boolean) field.get() == true) {
+        if ((Boolean) field.get()) {
             field.set(false);
             if (chunk.isLoaded()) {
                 ignoreUnload = true;
@@ -226,18 +223,28 @@ public class ChunkListener implements Listener {
     private void cleanChunk(final Chunk chunk) {
         TaskManager.index.incrementAndGet();
         final Integer currentIndex = TaskManager.index.get();
-        Integer task = TaskManager.runTaskRepeat(new Runnable() {
-            @Override public void run() {
-                if (!chunk.isLoaded()) {
-                    Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
-                    TaskManager.tasks.remove(currentIndex);
-                    PlotSquared
-                            .debug(C.PREFIX.s() + "&aSuccessfully processed and unloaded chunk!");
-                    chunk.unload(true, true);
-                    return;
-                }
-                BlockState[] tiles = chunk.getTileEntities();
-                if (tiles.length == 0) {
+        Integer task = TaskManager.runTaskRepeat(() -> {
+            if (!chunk.isLoaded()) {
+                Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
+                TaskManager.tasks.remove(currentIndex);
+                PlotSquared
+                        .debug(C.PREFIX.s() + "&aSuccessfully processed and unloaded chunk!");
+                chunk.unload(true, true);
+                return;
+            }
+            BlockState[] tiles = chunk.getTileEntities();
+            if (tiles.length == 0) {
+                Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
+                TaskManager.tasks.remove(currentIndex);
+                PlotSquared
+                    .debug(C.PREFIX.s() + "&aSuccessfully processed and unloaded chunk!");
+                chunk.unload(true, true);
+                return;
+            }
+            long start = System.currentTimeMillis();
+            int i = 0;
+            while (System.currentTimeMillis() - start < 250) {
+                if (i >= tiles.length) {
                     Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
                     TaskManager.tasks.remove(currentIndex);
                     PlotSquared
@@ -245,20 +252,8 @@ public class ChunkListener implements Listener {
                     chunk.unload(true, true);
                     return;
                 }
-                long start = System.currentTimeMillis();
-                int i = 0;
-                while (System.currentTimeMillis() - start < 250) {
-                    if (i >= tiles.length) {
-                        Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
-                        TaskManager.tasks.remove(currentIndex);
-                        PlotSquared
-                            .debug(C.PREFIX.s() + "&aSuccessfully processed and unloaded chunk!");
-                        chunk.unload(true, true);
-                        return;
-                    }
-                    tiles[i].getBlock().setType(Material.AIR, false);
-                    i++;
-                }
+                tiles[i].getBlock().setType(Material.AIR, false);
+                i++;
             }
         }, 5);
         TaskManager.tasks.put(currentIndex, task);

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/ForceFieldListener.java

@@ -16,89 +16,90 @@ import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
-@SuppressWarnings("unused") public class ForceFieldListener {
+@SuppressWarnings("unused")
+public class ForceFieldListener {
 
-    private static Set<PlotPlayer> getNearbyPlayers(Player player, Plot plot) {
-        Set<PlotPlayer> players = new HashSet<>();
-        for (Player nearPlayer : Iterables
-            .filter(player.getNearbyEntities(5d, 5d, 5d), Player.class)) {
-            PlotPlayer plotPlayer;
-            if ((plotPlayer = BukkitUtil.getPlayer(nearPlayer)) == null || !plot
-                .equals(plotPlayer.getCurrentPlot())) {
-                continue;
-            }
-            if (!plot.isAdded(plotPlayer.getUUID())) {
-                players.add(plotPlayer);
-            }
-        }
-        return players;
+  private static Set<PlotPlayer> getNearbyPlayers(Player player, Plot plot) {
+    Set<PlotPlayer> players = new HashSet<>();
+    for (Player nearPlayer : Iterables
+        .filter(player.getNearbyEntities(5d, 5d, 5d), Player.class)) {
+      PlotPlayer plotPlayer;
+      if ((plotPlayer = BukkitUtil.getPlayer(nearPlayer)) == null || !plot
+          .equals(plotPlayer.getCurrentPlot())) {
+        continue;
+      }
+      if (!plot.isAdded(plotPlayer.getUUID())) {
+        players.add(plotPlayer);
+      }
     }
+    return players;
+  }
 
-    private static PlotPlayer hasNearbyPermitted(Player player, Plot plot) {
-        for (Player nearPlayer : Iterables
-            .filter(player.getNearbyEntities(5d, 5d, 5d), Player.class)) {
-            PlotPlayer plotPlayer;
-            if ((plotPlayer = BukkitUtil.getPlayer(nearPlayer)) == null || !plot
-                .equals(plotPlayer.getCurrentPlot())) {
-                continue;
-            }
-            if (plot.isAdded(plotPlayer.getUUID())) {
-                return plotPlayer;
-            }
-        }
-        return null;
+  private static PlotPlayer hasNearbyPermitted(Player player, Plot plot) {
+    for (Player nearPlayer : Iterables
+        .filter(player.getNearbyEntities(5d, 5d, 5d), Player.class)) {
+      PlotPlayer plotPlayer;
+      if ((plotPlayer = BukkitUtil.getPlayer(nearPlayer)) == null || !plot
+          .equals(plotPlayer.getCurrentPlot())) {
+        continue;
+      }
+      if (plot.isAdded(plotPlayer.getUUID())) {
+        return plotPlayer;
+      }
     }
+    return null;
+  }
 
-    private static Vector calculateVelocity(PlotPlayer player, PlotPlayer e) {
-        Location playerLocation = player.getLocationFull();
-        Location oPlayerLocation = e.getLocation();
-        double playerX = playerLocation.getX();
-        double playerY = playerLocation.getY();
-        double playerZ = playerLocation.getZ();
-        double oPlayerX = oPlayerLocation.getX();
-        double oPlayerY = oPlayerLocation.getY();
-        double oPlayerZ = oPlayerLocation.getZ();
-        double x = 0d;
-        if (playerX < oPlayerX) {
-            x = 1.0d;
-        } else if (playerX > oPlayerX) {
-            x = -1.0d;
-        }
-        double y = 0d;
-        if (playerY < oPlayerY) {
-            y = 0.5d;
-        } else if (playerY > oPlayerY) {
-            y = -0.5d;
-        }
-        double z = 0d;
-        if (playerZ < oPlayerZ) {
-            z = 1.0d;
-        } else if (playerZ > oPlayerZ) {
-            z = -1.0d;
-        }
-        return new Vector(x, y, z);
+  private static Vector calculateVelocity(PlotPlayer player, PlotPlayer e) {
+    Location playerLocation = player.getLocationFull();
+    Location oPlayerLocation = e.getLocation();
+    double playerX = playerLocation.getX();
+    double playerY = playerLocation.getY();
+    double playerZ = playerLocation.getZ();
+    double oPlayerX = oPlayerLocation.getX();
+    double oPlayerY = oPlayerLocation.getY();
+    double oPlayerZ = oPlayerLocation.getZ();
+    double x = 0d;
+    if (playerX < oPlayerX) {
+      x = 1.0d;
+    } else if (playerX > oPlayerX) {
+      x = -1.0d;
     }
+    double y = 0d;
+    if (playerY < oPlayerY) {
+      y = 0.5d;
+    } else if (playerY > oPlayerY) {
+      y = -0.5d;
+    }
+    double z = 0d;
+    if (playerZ < oPlayerZ) {
+      z = 1.0d;
+    } else if (playerZ > oPlayerZ) {
+      z = -1.0d;
+    }
+    return new Vector(x, y, z);
+  }
 
-    public static void handleForcefield(Player player, PlotPlayer plotPlayer, Plot plot) {
-        if (Flags.FORCEFIELD.isTrue(plot)) {
-            UUID uuid = plotPlayer.getUUID();
-            if (plot.isAdded(uuid)) {
-                Set<PlotPlayer> players = getNearbyPlayers(player, plot);
-                for (PlotPlayer oPlayer : players) {
-                    if (!Permissions.hasPermission(oPlayer, C.PERMISSION_ADMIN_ENTRY_FORCEFIELD)) {
-                        ((BukkitPlayer) oPlayer).player
-                            .setVelocity(calculateVelocity(plotPlayer, oPlayer));
-                    }
-                }
-            } else {
-                PlotPlayer oPlayer = hasNearbyPermitted(player, plot);
-                if (oPlayer == null) {
-                    return;
-                }
-                if (!Permissions.hasPermission(plotPlayer, C.PERMISSION_ADMIN_ENTRY_FORCEFIELD)) {
-                    player.setVelocity(calculateVelocity(oPlayer, plotPlayer));
-                }
-            }
+  public static void handleForcefield(Player player, PlotPlayer plotPlayer, Plot plot) {
+    if (Flags.FORCEFIELD.isTrue(plot)) {
+      UUID uuid = plotPlayer.getUUID();
+      if (plot.isAdded(uuid)) {
+        Set<PlotPlayer> players = getNearbyPlayers(player, plot);
+        for (PlotPlayer oPlayer : players) {
+          if (!Permissions.hasPermission(oPlayer, C.PERMISSION_ADMIN_ENTRY_FORCEFIELD)) {
+            ((BukkitPlayer) oPlayer).player
+                .setVelocity(calculateVelocity(plotPlayer, oPlayer));
+          }
         }
+      } else {
+        PlotPlayer oPlayer = hasNearbyPermitted(player, plot);
+        if (oPlayer == null) {
+          return;
+        }
+        if (!Permissions.hasPermission(plotPlayer, C.PERMISSION_ADMIN_ENTRY_FORCEFIELD)) {
+          player.setVelocity(calculateVelocity(oPlayer, plotPlayer));
+        }
+      }
     }
+  }
 }

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/PlotPlusListener.java

@@ -10,6 +10,7 @@ import com.github.intellectualsites.plotsquared.plot.object.PlotPlayer;
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
 import org.bukkit.block.Block;
+import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
@@ -37,45 +38,43 @@ public class PlotPlusListener extends PlotListener implements Listener {
     private static final HashMap<UUID, Interval> healRunnable = new HashMap<>();
 
     public static void startRunnable(JavaPlugin plugin) {
-        plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {
-            @Override public void run() {
-                if (!healRunnable.isEmpty()) {
-                    for (Iterator<Entry<UUID, Interval>> iterator =
-                         healRunnable.entrySet().iterator(); iterator.hasNext(); ) {
-                        Entry<UUID, Interval> entry = iterator.next();
-                        Interval value = entry.getValue();
-                        ++value.count;
-                        if (value.count == value.interval) {
-                            value.count = 0;
-                            Player player = Bukkit.getPlayer(entry.getKey());
-                            if (player == null) {
-                                iterator.remove();
-                                continue;
-                            }
-                            double level = player.getHealth();
-                            if (level != value.max) {
-                                player.setHealth(Math.min(level + value.amount, value.max));
-                            }
+        plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, () -> {
+            if (!healRunnable.isEmpty()) {
+                for (Iterator<Entry<UUID, Interval>> iterator =
+                     healRunnable.entrySet().iterator(); iterator.hasNext(); ) {
+                    Entry<UUID, Interval> entry = iterator.next();
+                    Interval value = entry.getValue();
+                    ++value.count;
+                    if (value.count == value.interval) {
+                        value.count = 0;
+                        Player player = Bukkit.getPlayer(entry.getKey());
+                        if (player == null) {
+                            iterator.remove();
+                            continue;
+                        }
+                        double level = player.getHealth();
+                        if (level != value.max) {
+                            player.setHealth(Math.min(level + value.amount, value.max));
                         }
                     }
                 }
-                if (!feedRunnable.isEmpty()) {
-                    for (Iterator<Entry<UUID, Interval>> iterator =
-                         feedRunnable.entrySet().iterator(); iterator.hasNext(); ) {
-                        Entry<UUID, Interval> entry = iterator.next();
-                        Interval value = entry.getValue();
-                        ++value.count;
-                        if (value.count == value.interval) {
-                            value.count = 0;
-                            Player player = Bukkit.getPlayer(entry.getKey());
-                            if (player == null) {
-                                iterator.remove();
-                                continue;
-                            }
-                            int level = player.getFoodLevel();
-                            if (level != value.max) {
-                                player.setFoodLevel(Math.min(level + value.amount, value.max));
-                            }
+            }
+            if (!feedRunnable.isEmpty()) {
+                for (Iterator<Entry<UUID, Interval>> iterator =
+                     feedRunnable.entrySet().iterator(); iterator.hasNext(); ) {
+                    Entry<UUID, Interval> entry = iterator.next();
+                    Interval value = entry.getValue();
+                    ++value.count;
+                    if (value.count == value.interval) {
+                        value.count = 0;
+                        Player player = Bukkit.getPlayer(entry.getKey());
+                        if (player == null) {
+                            iterator.remove();
+                            continue;
+                        }
+                        int level = player.getFoodLevel();
+                        if (level != value.max) {
+                            player.setFoodLevel(Math.min(level + value.amount, value.max));
                         }
                     }
                 }
@@ -108,7 +107,7 @@ public class PlotPlusListener extends PlotListener implements Listener {
         if (event.getEntityType() != EntityType.PLAYER) {
             return;
         }
-        Player player = (Player) event.getEntity();
+        Entity player = event.getEntity();
         Plot plot = BukkitUtil.getLocation(player).getOwnedPlot();
         if (plot == null) {
             return;

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/listeners/SingleWorldListener.java

@@ -1,9 +1,13 @@
 package com.github.intellectualsites.plotsquared.bukkit.listeners;
 
+import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
+
 import com.github.intellectualsites.plotsquared.plot.PlotSquared;
 import com.github.intellectualsites.plotsquared.plot.object.worlds.PlotAreaManager;
 import com.github.intellectualsites.plotsquared.plot.object.worlds.SinglePlotAreaManager;
 import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.World;
@@ -14,11 +18,6 @@ import org.bukkit.event.world.ChunkEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.plugin.Plugin;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-
-import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
-
 @SuppressWarnings("unused") public class SingleWorldListener implements Listener {
 
     private Method methodGetHandleChunk;
@@ -33,8 +32,8 @@ import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils
             this.done = classChunk.getField("done").getRealField();
             this.lit = classChunk.getField("lit").getRealField();
             this.s = classChunk.getField("s").getRealField();
-        } catch (Throwable ignore) {
-            ignore.printStackTrace();
+        } catch (NoSuchFieldException exception) {
+            exception.printStackTrace();
         }
         Bukkit.getPluginManager().registerEvents(this, plugin);
     }

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/object/schematic/StateWrapper.java

@@ -20,6 +20,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import org.bukkit.inventory.meta.Damageable;
 
 public class StateWrapper {
 
@@ -241,7 +242,7 @@ public class StateWrapper {
     public Map<String, Tag> serializeItem(ItemStack item) {
         Map<String, Tag> data = new HashMap<>();
         data.put("id", new StringTag(item.getType().name()));
-        data.put("Damage", new ShortTag(item.getDurability()));
+        data.put("Damage", new ShortTag((short) ((Damageable)item.getItemMeta()).getDamage()));
         data.put("Count", new ByteTag((byte) item.getAmount()));
         if (!item.getEnchantments().isEmpty()) {
             List<CompoundTag> enchantmentList = new ArrayList<>();

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/titles/TitleManager.java

@@ -187,11 +187,7 @@ public abstract class TitleManager {
         throws IllegalArgumentException, ReflectiveOperationException, SecurityException;
 
     private Class<?> getPrimitiveType(Class<?> clazz) {
-        if (CORRESPONDING_TYPES.containsKey(clazz)) {
-            return CORRESPONDING_TYPES.get(clazz);
-        } else {
-            return clazz;
-        }
+        return CORRESPONDING_TYPES.getOrDefault(clazz, clazz);
     }
 
     private Class<?>[] toPrimitiveTypeArray(Class<?>[] classes) {

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/titles/TitleManager_1_11.java

@@ -335,7 +335,7 @@ public class TitleManager_1_11 {
     }
 
     private Class<?> getPrimitiveType(Class<?> clazz) {
-        return CORRESPONDING_TYPES.containsKey(clazz) ? CORRESPONDING_TYPES.get(clazz) : clazz;
+        return CORRESPONDING_TYPES.getOrDefault(clazz, clazz);
     }
 
     private Class<?>[] toPrimitiveTypeArray(Class<?>[] classes) {

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/util/BukkitEventUtil.java

@@ -99,10 +99,6 @@ public final class BukkitEventUtil extends EventUtil {
             new PlotChangeOwnerEvent(getPlayer(initiator), plot, oldOwner, newOwner, hasOldOwner));
     }
 
-    @Override public boolean callFlagRemove(Flag flag, Object object, PlotCluster cluster) {
-        return callEvent(new ClusterFlagRemoveEvent(flag, cluster));
-    }
-
     @Override @Nullable public Rating callRating(PlotPlayer player, Plot plot, Rating rating) {
         PlotRateEvent event = new PlotRateEvent(player, rating, plot);
         Bukkit.getServer().getPluginManager().callEvent(event);

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/util/BukkitInventoryUtil.java

@@ -83,7 +83,7 @@ public class BukkitInventoryUtil extends InventoryUtil {
         }
         // int id = item.getTypeId();
         Material id = item.getType();
-        short data = item.getDurability();
+        //short data = item.getDurability();
         int amount = item.getAmount();
         String name = null;
         String[] lore = null;
@@ -94,7 +94,7 @@ public class BukkitInventoryUtil extends InventoryUtil {
             }
             if (meta.hasLore()) {
                 List<String> itemLore = meta.getLore();
-                lore = itemLore.toArray(new String[itemLore.size()]);
+                lore = itemLore.toArray(new String[0]);
             }
         }
         return new PlotItemStack(id.name(), amount, name, lore);

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/util/SendChunk.java

@@ -1,5 +1,7 @@
 package com.github.intellectualsites.plotsquared.bukkit.util;
 
+import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
+
 import com.github.intellectualsites.plotsquared.bukkit.object.BukkitPlayer;
 import com.github.intellectualsites.plotsquared.plot.PlotSquared;
 import com.github.intellectualsites.plotsquared.plot.object.ChunkLoc;
@@ -12,52 +14,49 @@ import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.RefFie
 import com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.RefMethod;
 import com.github.intellectualsites.plotsquared.plot.util.TaskManager;
 import com.github.intellectualsites.plotsquared.plot.util.UUIDHandler;
-import org.bukkit.Bukkit;
-import org.bukkit.Chunk;
-import org.bukkit.World;
-import org.bukkit.entity.Player;
-
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map.Entry;
-
-import static com.github.intellectualsites.plotsquared.plot.util.ReflectionUtils.getRefClass;
+import org.bukkit.Bukkit;
+import org.bukkit.Chunk;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
 
 /**
- * An utility that can be used to send chunks, rather than using bukkit code
- * to do so (uses heavy NMS).
+ * An utility that can be used to send chunks, rather than using bukkit code to do so (uses heavy
+ * NMS).
  */
 public class SendChunk {
 
-    private final RefMethod methodGetHandlePlayer;
-    private final RefMethod methodGetHandleChunk;
-    private final RefConstructor mapChunk;
-    private final RefField connection;
-    private final RefMethod send;
-    private final RefMethod methodInitLighting;
+  private final RefMethod methodGetHandlePlayer;
+  private final RefMethod methodGetHandleChunk;
+  private final RefConstructor mapChunk;
+  private final RefField connection;
+  private final RefMethod send;
+  private final RefMethod methodInitLighting;
 
-    /**
-     * Constructor.
-     */
-    public SendChunk() throws ClassNotFoundException, NoSuchMethodException, NoSuchFieldException {
-        RefConstructor tempMapChunk;
-        RefClass classCraftPlayer = getRefClass("{cb}.entity.CraftPlayer");
-        this.methodGetHandlePlayer = classCraftPlayer.getMethod("getHandle");
-        RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");
-        this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");
-        RefClass classChunk = getRefClass("{nms}.Chunk");
-        this.methodInitLighting = classChunk.getMethod("initLighting");
-        RefClass classMapChunk = getRefClass("{nms}.PacketPlayOutMapChunk");
-        tempMapChunk = classMapChunk.getConstructor(classChunk.getRealClass(), int.class);
-        this.mapChunk = tempMapChunk;
-        RefClass classEntityPlayer = getRefClass("{nms}.EntityPlayer");
-        this.connection = classEntityPlayer.getField("playerConnection");
-        RefClass classPacket = getRefClass("{nms}.Packet");
-        RefClass classConnection = getRefClass("{nms}.PlayerConnection");
-        this.send = classConnection.getMethod("sendPacket", classPacket.getRealClass());
-    }
+  /**
+   * Constructor.
+   */
+  public SendChunk() throws ClassNotFoundException, NoSuchMethodException, NoSuchFieldException {
+    RefConstructor tempMapChunk;
+    RefClass classCraftPlayer = getRefClass("{cb}.entity.CraftPlayer");
+    this.methodGetHandlePlayer = classCraftPlayer.getMethod("getHandle");
+    RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");
+    this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");
+    RefClass classChunk = getRefClass("{nms}.Chunk");
+    this.methodInitLighting = classChunk.getMethod("initLighting");
+    RefClass classMapChunk = getRefClass("{nms}.PacketPlayOutMapChunk");
+    tempMapChunk = classMapChunk.getConstructor(classChunk.getRealClass(), int.class);
+    this.mapChunk = tempMapChunk;
+    RefClass classEntityPlayer = getRefClass("{nms}.EntityPlayer");
+    this.connection = classEntityPlayer.getField("playerConnection");
+    RefClass classPacket = getRefClass("{nms}.Packet");
+    RefClass classConnection = getRefClass("{nms}.PlayerConnection");
+    this.send = classConnection.getMethod("sendPacket", classPacket.getRealClass());
+  }
 
     public void sendChunk(Collection<Chunk> input) {
         HashSet<Chunk> chunks = new HashSet<>(input);
@@ -97,54 +96,52 @@ public class SendChunk {
             Player player = ((BukkitPlayer) pp).player;
             Object entity = this.methodGetHandlePlayer.of(player).call();
 
-            for (Chunk chunk : list) {
-                int dx = Math.abs(cx - chunk.getX());
-                int dz = Math.abs(cz - chunk.getZ());
-                if ((dx > view) || (dz > view)) {
-                    continue;
-                }
-                Object c = this.methodGetHandleChunk.of(chunk).call();
-                chunks.remove(chunk);
-                Object con = this.connection.of(entity).get();
-                Object packet = null;
-                try {
-                    packet = this.mapChunk.create(c, 65535);
-                } catch (Exception ignored) {
-                }
-                if (packet == null) {
-                    PlotSquared.debug("Error with PacketPlayOutMapChunk reflection.");
-                }
-                this.send.of(con).call(packet);
-            }
+      for (Chunk chunk : list) {
+        int dx = Math.abs(cx - chunk.getX());
+        int dz = Math.abs(cz - chunk.getZ());
+        if ((dx > view) || (dz > view)) {
+          continue;
         }
-        for (final Chunk chunk : chunks) {
-            TaskManager.runTask(new Runnable() {
-                @Override public void run() {
-                    try {
-                        chunk.unload(true, false);
-                    } catch (Throwable ignored) {
-                        String worldName = chunk.getWorld().getName();
-                        PlotSquared.debug(
-                            "$4Could not save chunk: " + worldName + ';' + chunk.getX() + ";"
-                                + chunk.getZ());
-                        PlotSquared
-                            .debug("$3 - $4File may be open in another process (e.g. MCEdit)");
-                        PlotSquared.debug("$3 - $4" + worldName + "/level.dat or " + worldName
-                            + "/level_old.dat may be corrupt (try repairing or removing these)");
-                    }
-                }
-            });
+        Object c = this.methodGetHandleChunk.of(chunk).call();
+        chunks.remove(chunk);
+        Object con = this.connection.of(entity).get();
+        Object packet = null;
+        try {
+          packet = this.mapChunk.create(c, 65535);
+        } catch (Exception ignored) {
         }
+        if (packet == null) {
+          PlotSquared.debug("Error with PacketPlayOutMapChunk reflection.");
+        }
+        this.send.of(con).call(packet);
+      }
     }
+    for (final Chunk chunk : chunks) {
+      TaskManager.runTask(() -> {
+        try {
+          chunk.unload(true, false);
+        } catch (Throwable ignored) {
+          String worldName = chunk.getWorld().getName();
+          PlotSquared.debug(
+              "$4Could not save chunk: " + worldName + ';' + chunk.getX() + ";"
+                  + chunk.getZ());
+          PlotSquared
+              .debug("$3 - $4File may be open in another process (e.g. MCEdit)");
+          PlotSquared.debug("$3 - $4" + worldName + "/level.dat or " + worldName
+              + "/level_old.dat may be corrupt (try repairing or removing these)");
+        }
+      });
+    }
+  }
 
-    public void sendChunk(String worldName, Collection<ChunkLoc> chunkLocations) {
-        World myWorld = Bukkit.getWorld(worldName);
-        ArrayList<Chunk> chunks = new ArrayList<>();
-        for (ChunkLoc loc : chunkLocations) {
-            if (myWorld.isChunkLoaded(loc.x, loc.z)) {
-                chunks.add(myWorld.getChunkAt(loc.x, loc.z));
-            }
-        }
-        sendChunk(chunks);
+  public void sendChunk(String worldName, Collection<ChunkLoc> chunkLocations) {
+    World myWorld = Bukkit.getWorld(worldName);
+    ArrayList<Chunk> chunks = new ArrayList<>();
+    for (ChunkLoc loc : chunkLocations) {
+      if (myWorld.isChunkLoaded(loc.x, loc.z)) {
+        chunks.add(myWorld.getChunkAt(loc.x, loc.z));
+      }
     }
+    sendChunk(chunks);
+  }
 }

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/util/block/BukkitLocalQueue.java

@@ -192,8 +192,7 @@ public class BukkitLocalQueue<T> extends BasicLocalBlockQueue<T> {
             for (int x = 0; x < lc.biomes.length; x++) {
                 String[] biomes2 = lc.biomes[x];
                 if (biomes2 != null) {
-                    for (int y = 0; y < biomes2.length; y++) {
-                        String biomeStr = biomes2[y];
+                    for (String biomeStr : biomes2) {
                         if (biomeStr != null) {
                             if (last == null || !StringMan.isEqual(last, biomeStr)) {
                                 biome = Biome.valueOf(biomeStr.toUpperCase());

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/uuid/DefaultUUIDWrapper.java

@@ -5,12 +5,13 @@ import com.github.intellectualsites.plotsquared.bukkit.object.BukkitPlayer;
 import com.github.intellectualsites.plotsquared.plot.object.OfflinePlotPlayer;
 import com.github.intellectualsites.plotsquared.plot.object.PlotPlayer;
 import com.github.intellectualsites.plotsquared.plot.uuid.UUIDWrapper;
+import java.util.Arrays;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 
 import java.util.UUID;
 
-public class DefaultUUIDWrapper extends UUIDWrapper {
+public class DefaultUUIDWrapper implements UUIDWrapper {
 
     @Override public UUID getUUID(PlotPlayer player) {
         return ((BukkitPlayer) player).player.getUniqueId();
@@ -30,11 +31,8 @@ public class DefaultUUIDWrapper extends UUIDWrapper {
 
     @Override public OfflinePlotPlayer[] getOfflinePlayers() {
         OfflinePlayer[] ops = Bukkit.getOfflinePlayers();
-        BukkitOfflinePlayer[] toReturn = new BukkitOfflinePlayer[ops.length];
-        for (int i = 0; i < ops.length; i++) {
-            toReturn[i] = new BukkitOfflinePlayer(ops[i]);
-        }
-        return toReturn;
+        return Arrays.stream(ops).map(BukkitOfflinePlayer::new)
+            .toArray(BukkitOfflinePlayer[]::new);
     }
 
     @Override public OfflinePlotPlayer getOfflinePlayer(String name) {

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/uuid/FileUUIDHandler.java

@@ -47,204 +47,200 @@ public class FileUUIDHandler extends UUIDHandlerImplementation {
         } else {
             world = worlds.get(0).getName();
         }
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                PlotSquared.debug(C.PREFIX + "&6Starting player data caching for: " + world);
-                File uuidFile = new File(PlotSquared.get().IMP.getDirectory(), "uuids.txt");
-                if (uuidFile.exists()) {
-                    try {
-                        List<String> lines =
-                            Files.readAllLines(uuidFile.toPath(), StandardCharsets.UTF_8);
-                        for (String line : lines) {
-                            try {
-                                line = line.trim();
-                                if (line.isEmpty()) {
-                                    continue;
-                                }
-                                line = line.replaceAll("[\\|][0-9]+[\\|][0-9]+[\\|]", "");
-                                String[] split = line.split("\\|");
-                                String name = split[0];
-                                if (name.isEmpty() || (name.length() > 16) || !StringMan
-                                    .isAlphanumericUnd(name)) {
-                                    continue;
-                                }
-                                UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
-                                if (uuid == null) {
-                                    continue;
-                                }
-                                UUIDHandler.add(new StringWrapper(name), uuid);
-                            } catch (Exception e2) {
-                                e2.printStackTrace();
+        TaskManager.runTaskAsync(() -> {
+            PlotSquared.debug(C.PREFIX + "&6Starting player data caching for: " + world);
+            File uuidFile = new File(PlotSquared.get().IMP.getDirectory(), "uuids.txt");
+            if (uuidFile.exists()) {
+                try {
+                    List<String> lines =
+                        Files.readAllLines(uuidFile.toPath(), StandardCharsets.UTF_8);
+                    for (String line : lines) {
+                        try {
+                            line = line.trim();
+                            if (line.isEmpty()) {
+                                continue;
                             }
+                            line = line.replaceAll("[\\|][0-9]+[\\|][0-9]+[\\|]", "");
+                            String[] split = line.split("\\|");
+                            String name = split[0];
+                            if (name.isEmpty() || (name.length() > 16) || !StringMan
+                                .isAlphanumericUnd(name)) {
+                                continue;
+                            }
+                            UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
+                            if (uuid == null) {
+                                continue;
+                            }
+                            UUIDHandler.add(new StringWrapper(name), uuid);
+                        } catch (Exception e2) {
+                            e2.printStackTrace();
                         }
-                    } catch (IOException e) {
-                        e.printStackTrace();
                     }
+                } catch (IOException e) {
+                    e.printStackTrace();
                 }
-                HashBiMap<StringWrapper, UUID> toAdd =
-                    HashBiMap.create(new HashMap<StringWrapper, UUID>());
-                if (Settings.UUID.NATIVE_UUID_PROVIDER) {
-                    HashSet<UUID> all = UUIDHandler.getAllUUIDS();
-                    PlotSquared.debug("&aFast mode UUID caching enabled!");
-                    File playerDataFolder =
-                        new File(container, world + File.separator + "playerdata");
-                    String[] dat = playerDataFolder.list(new DatFileFilter());
-                    boolean check = all.isEmpty();
-                    if (dat != null) {
-                        for (String current : dat) {
-                            String s = current.replaceAll(".dat$", "");
-                            try {
-                                UUID uuid = UUID.fromString(s);
-                                if (check || all.remove(uuid)) {
-                                    File file = new File(playerDataFolder, current);
-                                    NbtFactory.NbtCompound compound = NbtFactory
-                                        .fromStream(new FileInputStream(file),
-                                            NbtFactory.StreamOptions.GZIP_COMPRESSION);
-                                    if (!compound.containsKey("bukkit")) {
-                                        PlotSquared.debug("ERROR: Player data (" + uuid.toString()
-                                            + ".dat) does not contain the the key \"bukkit\"");
-                                    } else {
-                                        NbtFactory.NbtCompound bukkit =
-                                            (NbtFactory.NbtCompound) compound.get("bukkit");
-                                        String name = (String) bukkit.get("lastKnownName");
-                                        long last = (long) bukkit.get("lastPlayed");
-                                        long first = (long) bukkit.get("firstPlayed");
-                                        if (ExpireManager.IMP != null) {
-                                            ExpireManager.IMP.storeDate(uuid, last);
-                                            ExpireManager.IMP.storeAccountAge(uuid, last - first);
-                                        }
-                                        toAdd.put(new StringWrapper(name), uuid);
+            }
+            HashBiMap<StringWrapper, UUID> toAdd =
+                HashBiMap.create(new HashMap<>());
+            if (Settings.UUID.NATIVE_UUID_PROVIDER) {
+                HashSet<UUID> all = UUIDHandler.getAllUUIDS();
+                PlotSquared.debug("&aFast mode UUID caching enabled!");
+                File playerDataFolder =
+                    new File(container, world + File.separator + "playerdata");
+                String[] dat = playerDataFolder.list(new DatFileFilter());
+                boolean check = all.isEmpty();
+                if (dat != null) {
+                    for (String current : dat) {
+                        String s = current.replaceAll(".dat$", "");
+                        try {
+                            UUID uuid = UUID.fromString(s);
+                            if (check || all.remove(uuid)) {
+                                File file = new File(playerDataFolder, current);
+                                NbtFactory.NbtCompound compound = NbtFactory
+                                    .fromStream(new FileInputStream(file),
+                                        NbtFactory.StreamOptions.GZIP_COMPRESSION);
+                                if (!compound.containsKey("bukkit")) {
+                                    PlotSquared.debug("ERROR: Player data (" + uuid.toString()
+                                        + ".dat) does not contain the the key \"bukkit\"");
+                                } else {
+                                    NbtFactory.NbtCompound bukkit =
+                                        (NbtFactory.NbtCompound) compound.get("bukkit");
+                                    String name = (String) bukkit.get("lastKnownName");
+                                    long last = (long) bukkit.get("lastPlayed");
+                                    long first = (long) bukkit.get("firstPlayed");
+                                    if (ExpireManager.IMP != null) {
+                                        ExpireManager.IMP.storeDate(uuid, last);
+                                        ExpireManager.IMP.storeAccountAge(uuid, last - first);
                                     }
-                                }
-                            } catch (Exception e) {
-                                e.printStackTrace();
-                                PlotSquared.debug(C.PREFIX + "Invalid playerdata: " + current);
-                            }
-                        }
-                    }
-                    add(toAdd);
-                    if (all.isEmpty()) {
-                        if (whenDone != null) {
-                            whenDone.run();
-                        }
-                        return;
-                    } else {
-                        PlotSquared.debug("Failed to cache: " + all.size()
-                            + " uuids - slowly processing all files");
-                    }
-                }
-                HashSet<String> worlds = Sets.newHashSet(world, "world");
-                HashSet<UUID> uuids = new HashSet<>();
-                HashSet<String> names = new HashSet<>();
-                File playerDataFolder = null;
-                for (String worldName : worlds) {
-                    // Getting UUIDs
-                    playerDataFolder =
-                        new File(container, worldName + File.separator + "playerdata");
-                    String[] dat = playerDataFolder.list(new DatFileFilter());
-                    if ((dat != null) && (dat.length != 0)) {
-                        for (String current : dat) {
-                            String s = current.replaceAll(".dat$", "");
-                            try {
-                                UUID uuid = UUID.fromString(s);
-                                uuids.add(uuid);
-                            } catch (Exception ignored) {
-                                PlotSquared.debug(C.PREFIX + "Invalid PlayerData: " + current);
-                            }
-                        }
-                        break;
-                    }
-                    // Getting names
-                    File playersFolder = new File(worldName + File.separator + "players");
-                    dat = playersFolder.list(new DatFileFilter());
-                    if ((dat != null) && (dat.length != 0)) {
-                        for (String current : dat) {
-                            names.add(current.replaceAll(".dat$", ""));
-                        }
-                        break;
-                    }
-                }
-                for (UUID uuid : uuids) {
-                    try {
-                        File file =
-                            new File(playerDataFolder + File.separator + uuid.toString() + ".dat");
-                        if (!file.exists()) {
-                            continue;
-                        }
-                        NbtFactory.NbtCompound compound = NbtFactory
-                            .fromStream(new FileInputStream(file),
-                                NbtFactory.StreamOptions.GZIP_COMPRESSION);
-                        if (!compound.containsKey("bukkit")) {
-                            PlotSquared.debug("ERROR: Player data (" + uuid.toString()
-                                + ".dat) does not contain the the key \"bukkit\"");
-                        } else {
-                            NbtFactory.NbtCompound bukkit =
-                                (NbtFactory.NbtCompound) compound.get("bukkit");
-                            String name = (String) bukkit.get("lastKnownName");
-                            StringWrapper wrap = new StringWrapper(name);
-                            if (!toAdd.containsKey(wrap)) {
-                                long last = (long) bukkit.get("lastPlayed");
-                                long first = (long) bukkit.get("firstPlayed");
-                                if (Settings.UUID.OFFLINE) {
-                                    if (Settings.UUID.FORCE_LOWERCASE && !name.toLowerCase()
-                                        .equals(name)) {
-                                        uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
-                                    } else {
-                                        long most = (long) compound.get("UUIDMost");
-                                        long least = (long) compound.get("UUIDLeast");
-                                        uuid = new UUID(most, least);
-                                    }
-                                }
-                                if (ExpireManager.IMP != null) {
-                                    ExpireManager.IMP.storeDate(uuid, last);
-                                    ExpireManager.IMP.storeAccountAge(uuid, last - first);
-                                }
-                                toAdd.put(wrap, uuid);
-                            }
-                        }
-                    } catch (Exception ignored) {
-                        PlotSquared
-                            .debug(C.PREFIX + "&6Invalid PlayerData: " + uuid.toString() + ".dat");
-                    }
-                }
-                for (String name : names) {
-                    UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
-                    StringWrapper nameWrap = new StringWrapper(name);
-                    toAdd.put(nameWrap, uuid);
-                }
-
-                if (getUUIDMap().isEmpty()) {
-                    for (OfflinePlotPlayer op : FileUUIDHandler.this.uuidWrapper
-                        .getOfflinePlayers()) {
-                        long last = op.getLastPlayed();
-                        if (last != 0) {
-                            String name = op.getName();
-                            StringWrapper wrap = new StringWrapper(name);
-                            if (!toAdd.containsKey(wrap)) {
-                                UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(op);
-                                toAdd.put(wrap, uuid);
-                                if (ExpireManager.IMP != null) {
-                                    ExpireManager.IMP.storeDate(uuid, last);
+                                    toAdd.put(new StringWrapper(name), uuid);
                                 }
                             }
+                        } catch (Exception e) {
+                            e.printStackTrace();
+                            PlotSquared.debug(C.PREFIX + "Invalid playerdata: " + current);
                         }
                     }
                 }
                 add(toAdd);
-                if (whenDone != null) {
-                    whenDone.run();
+                if (all.isEmpty()) {
+                    if (whenDone != null) {
+                        whenDone.run();
+                    }
+                    return;
+                } else {
+                    PlotSquared.debug("Failed to cache: " + all.size()
+                        + " uuids - slowly processing all files");
                 }
             }
+            HashSet<String> worlds1 = Sets.newHashSet(world, "world");
+            HashSet<UUID> uuids = new HashSet<>();
+            HashSet<String> names = new HashSet<>();
+            File playerDataFolder = null;
+            for (String worldName : worlds1) {
+                // Getting UUIDs
+                playerDataFolder =
+                    new File(container, worldName + File.separator + "playerdata");
+                String[] dat = playerDataFolder.list(new DatFileFilter());
+                if ((dat != null) && (dat.length != 0)) {
+                    for (String current : dat) {
+                        String s = current.replaceAll(".dat$", "");
+                        try {
+                            UUID uuid = UUID.fromString(s);
+                            uuids.add(uuid);
+                        } catch (Exception ignored) {
+                            PlotSquared.debug(C.PREFIX + "Invalid PlayerData: " + current);
+                        }
+                    }
+                    break;
+                }
+                // Getting names
+                File playersFolder = new File(worldName + File.separator + "players");
+                dat = playersFolder.list(new DatFileFilter());
+                if ((dat != null) && (dat.length != 0)) {
+                    for (String current : dat) {
+                        names.add(current.replaceAll(".dat$", ""));
+                    }
+                    break;
+                }
+            }
+            for (UUID uuid : uuids) {
+                try {
+                    File file =
+                        new File(playerDataFolder + File.separator + uuid.toString() + ".dat");
+                    if (!file.exists()) {
+                        continue;
+                    }
+                    NbtFactory.NbtCompound compound = NbtFactory
+                        .fromStream(new FileInputStream(file),
+                            NbtFactory.StreamOptions.GZIP_COMPRESSION);
+                    if (!compound.containsKey("bukkit")) {
+                        PlotSquared.debug("ERROR: Player data (" + uuid.toString()
+                            + ".dat) does not contain the the key \"bukkit\"");
+                    } else {
+                        NbtFactory.NbtCompound bukkit =
+                            (NbtFactory.NbtCompound) compound.get("bukkit");
+                        String name = (String) bukkit.get("lastKnownName");
+                        StringWrapper wrap = new StringWrapper(name);
+                        if (!toAdd.containsKey(wrap)) {
+                            long last = (long) bukkit.get("lastPlayed");
+                            long first = (long) bukkit.get("firstPlayed");
+                            if (Settings.UUID.OFFLINE) {
+                                if (Settings.UUID.FORCE_LOWERCASE && !name.toLowerCase()
+                                    .equals(name)) {
+                                    uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
+                                } else {
+                                    long most = (long) compound.get("UUIDMost");
+                                    long least = (long) compound.get("UUIDLeast");
+                                    uuid = new UUID(most, least);
+                                }
+                            }
+                            if (ExpireManager.IMP != null) {
+                                ExpireManager.IMP.storeDate(uuid, last);
+                                ExpireManager.IMP.storeAccountAge(uuid, last - first);
+                            }
+                            toAdd.put(wrap, uuid);
+                        }
+                    }
+                } catch (Exception ignored) {
+                    PlotSquared
+                        .debug(C.PREFIX + "&6Invalid PlayerData: " + uuid.toString() + ".dat");
+                }
+            }
+            for (String name : names) {
+                UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(name);
+                StringWrapper nameWrap = new StringWrapper(name);
+                toAdd.put(nameWrap, uuid);
+            }
+
+            if (getUUIDMap().isEmpty()) {
+                for (OfflinePlotPlayer op : FileUUIDHandler.this.uuidWrapper
+                    .getOfflinePlayers()) {
+                    long last = op.getLastPlayed();
+                    if (last != 0) {
+                        String name = op.getName();
+                        StringWrapper wrap = new StringWrapper(name);
+                        if (!toAdd.containsKey(wrap)) {
+                            UUID uuid = FileUUIDHandler.this.uuidWrapper.getUUID(op);
+                            toAdd.put(wrap, uuid);
+                            if (ExpireManager.IMP != null) {
+                                ExpireManager.IMP.storeDate(uuid, last);
+                            }
+                        }
+                    }
+                }
+            }
+            add(toAdd);
+            if (whenDone != null) {
+                whenDone.run();
+            }
         });
         return true;
     }
 
     @Override public void fetchUUID(final String name, final RunnableVal<UUID> ifFetch) {
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                ifFetch.value = FileUUIDHandler.this.uuidWrapper.getUUID(name);
-                TaskManager.runTask(ifFetch);
-            }
+        TaskManager.runTaskAsync(() -> {
+            ifFetch.value = FileUUIDHandler.this.uuidWrapper.getUUID(name);
+            TaskManager.runTask(ifFetch);
         });
     }
 }

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/uuid/OfflineUUIDWrapper.java

@@ -9,6 +9,7 @@ import com.github.intellectualsites.plotsquared.plot.util.UUIDHandler;
 import com.github.intellectualsites.plotsquared.plot.uuid.UUIDWrapper;
 import com.google.common.base.Charsets;
 import com.google.common.collect.BiMap;
+import java.util.Arrays;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.Server;
@@ -19,7 +20,7 @@ import java.lang.reflect.Method;
 import java.util.Collection;
 import java.util.UUID;
 
-public class OfflineUUIDWrapper extends UUIDWrapper {
+public class OfflineUUIDWrapper implements UUIDWrapper {
 
     private final Object[] arg = new Object[0];
     private Method getOnline = null;
@@ -59,18 +60,15 @@ public class OfflineUUIDWrapper extends UUIDWrapper {
                 return new BukkitOfflinePlayer(op);
             }
         }
-        for (OfflinePlayer player : Bukkit.getOfflinePlayers()) {
-            if (getUUID(player).equals(uuid)) {
-                return new BukkitOfflinePlayer(player);
-            }
-        }
-        return null;
+        return Arrays.stream(Bukkit.getOfflinePlayers())
+            .filter(player -> getUUID(player).equals(uuid)).findFirst()
+            .map(BukkitOfflinePlayer::new).orElse(null);
     }
 
     public Player[] getOnlinePlayers() {
         if (this.getOnline == null) {
             Collection<? extends Player> onlinePlayers = Bukkit.getOnlinePlayers();
-            return onlinePlayers.toArray(new Player[onlinePlayers.size()]);
+            return onlinePlayers.toArray(new Player[0]);
         }
         try {
             Object players = this.getOnline.invoke(Bukkit.getServer(), this.arg);
@@ -79,13 +77,13 @@ public class OfflineUUIDWrapper extends UUIDWrapper {
             } else {
                 @SuppressWarnings("unchecked") Collection<? extends Player> p =
                     (Collection<? extends Player>) players;
-                return p.toArray(new Player[p.size()]);
+                return p.toArray(new Player[0]);
             }
         } catch (IllegalAccessException | InvocationTargetException | IllegalArgumentException ignored) {
             PlotSquared.debug("Failed to resolve online players");
             this.getOnline = null;
             Collection<? extends Player> onlinePlayers = Bukkit.getOnlinePlayers();
-            return onlinePlayers.toArray(new Player[onlinePlayers.size()]);
+            return onlinePlayers.toArray(new Player[0]);
         }
     }
 
@@ -95,11 +93,8 @@ public class OfflineUUIDWrapper extends UUIDWrapper {
 
     @Override public OfflinePlotPlayer[] getOfflinePlayers() {
         OfflinePlayer[] ops = Bukkit.getOfflinePlayers();
-        BukkitOfflinePlayer[] toReturn = new BukkitOfflinePlayer[ops.length];
-        for (int i = 0; i < ops.length; i++) {
-            toReturn[i] = new BukkitOfflinePlayer(ops[i]);
-        }
-        return toReturn;
+        return Arrays.stream(ops).map(BukkitOfflinePlayer::new)
+            .toArray(BukkitOfflinePlayer[]::new);
     }
 
     @Override public OfflinePlotPlayer getOfflinePlayer(String name) {

Bukkit/src/main/java/com/github/intellectualsites/plotsquared/bukkit/uuid/SQLUUIDHandler.java

@@ -71,96 +71,90 @@ public class SQLUUIDHandler extends UUIDHandlerImplementation {
         if (!super.startCaching(whenDone)) {
             return false;
         }
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                try {
-                    HashBiMap<StringWrapper, UUID> toAdd =
-                        HashBiMap.create(new HashMap<StringWrapper, UUID>());
-                    try (PreparedStatement statement = getConnection()
-                        .prepareStatement("SELECT `uuid`, `username` FROM `usercache`");
-                        ResultSet resultSet = statement.executeQuery()) {
-                        while (resultSet.next()) {
-                            StringWrapper username =
-                                new StringWrapper(resultSet.getString("username"));
-                            UUID uuid = UUID.fromString(resultSet.getString("uuid"));
-                            toAdd.put(new StringWrapper(username.value), uuid);
-                        }
+        TaskManager.runTaskAsync(() -> {
+            try {
+                HashBiMap<StringWrapper, UUID> toAdd =
+                    HashBiMap.create(new HashMap<>());
+                try (PreparedStatement statement = getConnection()
+                    .prepareStatement("SELECT `uuid`, `username` FROM `usercache`");
+                    ResultSet resultSet = statement.executeQuery()) {
+                    while (resultSet.next()) {
+                        StringWrapper username =
+                            new StringWrapper(resultSet.getString("username"));
+                        UUID uuid = UUID.fromString(resultSet.getString("uuid"));
+                        toAdd.put(new StringWrapper(username.value), uuid);
                     }
-                    add(toAdd);
-                    // This should be called as long as there are some unknown plots
-                    final ArrayDeque<UUID> toFetch = new ArrayDeque<>();
-                    for (UUID u : UUIDHandler.getAllUUIDS()) {
-                        if (!uuidExists(u)) {
-                            toFetch.add(u);
-                        }
+                }
+                add(toAdd);
+                // This should be called as long as there are some unknown plots
+                final ArrayDeque<UUID> toFetch = new ArrayDeque<>();
+                for (UUID u : UUIDHandler.getAllUUIDS()) {
+                    if (!uuidExists(u)) {
+                        toFetch.add(u);
                     }
-                    if (toFetch.isEmpty()) {
+                }
+                if (toFetch.isEmpty()) {
+                    if (whenDone != null) {
+                        whenDone.run();
+                    }
+                    return;
+                }
+                FileUUIDHandler fileHandler =
+                    new FileUUIDHandler(SQLUUIDHandler.this.uuidWrapper);
+                fileHandler.startCaching(() -> {
+                    // If the file based UUID handler didn't cache it, then we can't cache offline mode
+                    // Also, trying to cache based on files again, is useless as that's what the file based uuid cacher does
+                    if (Settings.UUID.OFFLINE) {
                         if (whenDone != null) {
                             whenDone.run();
                         }
                         return;
                     }
-                    FileUUIDHandler fileHandler =
-                        new FileUUIDHandler(SQLUUIDHandler.this.uuidWrapper);
-                    fileHandler.startCaching(new Runnable() {
-                        @Override public void run() {
-                            // If the file based UUID handler didn't cache it, then we can't cache offline mode
-                            // Also, trying to cache based on files again, is useless as that's what the file based uuid cacher does
-                            if (Settings.UUID.OFFLINE) {
-                                if (whenDone != null) {
-                                    whenDone.run();
-                                }
-                                return;
-                            }
 
-                            TaskManager.runTaskAsync(new Runnable() {
-                                @Override public void run() {
-                                    while (!toFetch.isEmpty()) {
-                                        try {
-                                            for (int i = 0;
-                                                 i < Math.min(500, toFetch.size()); i++) {
-                                                UUID uuid = toFetch.pop();
-                                                HttpURLConnection connection =
-                                                    (HttpURLConnection) new URL(
-                                                        SQLUUIDHandler.this.PROFILE_URL + uuid
-                                                            .toString().replace("-", ""))
-                                                        .openConnection();
-                                                try (InputStream con = connection
-                                                    .getInputStream()) {
-                                                    InputStreamReader reader =
-                                                        new InputStreamReader(con);
-                                                    JSONObject response =
-                                                        (JSONObject) SQLUUIDHandler.this.jsonParser
-                                                            .parse(reader);
-                                                    String name = (String) response.get("name");
-                                                    if (name != null) {
-                                                        add(new StringWrapper(name), uuid);
-                                                    }
-                                                }
-                                                connection.disconnect();
-                                            }
-                                        } catch (IOException | ParseException e) {
-                                            PlotSquared.debug(
-                                                "Invalid response from Mojang: Some UUIDs will be cached later. (`unknown` until then or player joins)");
-                                        }
-                                        try {
-                                            Thread.sleep(INTERVAL * 50);
-                                        } catch (InterruptedException e) {
-                                            e.printStackTrace();
-                                            break;
+                    TaskManager.runTaskAsync(() -> {
+                        while (!toFetch.isEmpty()) {
+                            try {
+                                for (int i = 0;
+                                    i < Math.min(500, toFetch.size()); i++) {
+                                    UUID uuid = toFetch.pop();
+                                    HttpURLConnection connection =
+                                        (HttpURLConnection) new URL(
+                                            SQLUUIDHandler.this.PROFILE_URL + uuid
+                                                .toString().replace("-", ""))
+                                            .openConnection();
+                                    try (InputStream con = connection
+                                        .getInputStream()) {
+                                        InputStreamReader reader =
+                                            new InputStreamReader(con);
+                                        JSONObject response =
+                                            (JSONObject) SQLUUIDHandler.this.jsonParser
+                                                .parse(reader);
+                                        String name = (String) response.get("name");
+                                        if (name != null) {
+                                            add(new StringWrapper(name), uuid);
                                         }
                                     }
-                                    if (whenDone != null) {
-                                        whenDone.run();
-                                    }
-                                    return;
+                                    connection.disconnect();
                                 }
-                            });
+                            } catch (IOException | ParseException e) {
+                                PlotSquared.debug(
+                                    "Invalid response from Mojang: Some UUIDs will be cached later. (`unknown` until then or player joins)");
+                            }
+                            try {
+                                Thread.sleep(INTERVAL * 50);
+                            } catch (InterruptedException e) {
+                                e.printStackTrace();
+                                break;
+                            }
                         }
+                        if (whenDone != null) {
+                            whenDone.run();
+                        }
+                        return;
                     });
-                } catch (SQLException e) {
-                    throw new SQLUUIDHandlerException("Couldn't select :s", e);
-                }
+                });
+            } catch (SQLException e) {
+                throw new SQLUUIDHandlerException("Couldn't select :s", e);
             }
         });
         return true;
@@ -172,34 +166,32 @@ public class SQLUUIDHandler extends UUIDHandlerImplementation {
         if (ifFetch == null) {
             return;
         }
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                try {
-                    URL url = new URL(SQLUUIDHandler.this.PROFILE_URL);
-                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-                    connection.setRequestMethod("POST");
-                    connection.setRequestProperty("Content-Type", "application/json");
-                    connection.setUseCaches(false);
-                    connection.setDoInput(true);
-                    connection.setDoOutput(true);
-                    String body = JSONArray.toJSONString(Collections.singletonList(name));
-                    OutputStream stream = connection.getOutputStream();
-                    stream.write(body.getBytes());
-                    stream.flush();
-                    stream.close();
-                    JSONArray array = (JSONArray) SQLUUIDHandler.this.jsonParser
-                        .parse(new InputStreamReader(connection.getInputStream()));
-                    JSONObject jsonProfile = (JSONObject) array.get(0);
-                    String id = (String) jsonProfile.get("id");
-                    String name = (String) jsonProfile.get("name");
-                    ifFetch.value = UUID.fromString(
-                        id.substring(0, 8) + '-' + id.substring(8, 12) + '-' + id.substring(12, 16)
-                            + '-' + id.substring(16, 20) + '-' + id.substring(20, 32));
-                } catch (IOException | ParseException e) {
-                    e.printStackTrace();
-                }
-                TaskManager.runTask(ifFetch);
+        TaskManager.runTaskAsync(() -> {
+            try {
+                URL url = new URL(SQLUUIDHandler.this.PROFILE_URL);
+                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+                connection.setRequestMethod("POST");
+                connection.setRequestProperty("Content-Type", "application/json");
+                connection.setUseCaches(false);
+                connection.setDoInput(true);
+                connection.setDoOutput(true);
+                String body = JSONArray.toJSONString(Collections.singletonList(name));
+                OutputStream stream = connection.getOutputStream();
+                stream.write(body.getBytes());
+                stream.flush();
+                stream.close();
+                JSONArray array = (JSONArray) SQLUUIDHandler.this.jsonParser
+                    .parse(new InputStreamReader(connection.getInputStream()));
+                JSONObject jsonProfile = (JSONObject) array.get(0);
+                String id = (String) jsonProfile.get("id");
+                String name1 = (String) jsonProfile.get("name");
+                ifFetch.value = UUID.fromString(
+                    id.substring(0, 8) + '-' + id.substring(8, 12) + '-' + id.substring(12, 16)
+                        + '-' + id.substring(16, 20) + '-' + id.substring(20, 32));
+            } catch (IOException | ParseException e) {
+                e.printStackTrace();
             }
+            TaskManager.runTask(ifFetch);
         });
     }
 
@@ -215,18 +207,16 @@ public class SQLUUIDHandler extends UUIDHandlerImplementation {
     @Override public boolean add(final StringWrapper name, final UUID uuid) {
         // Ignoring duplicates
         if (super.add(name, uuid)) {
-            TaskManager.runTaskAsync(new Runnable() {
-                @Override public void run() {
-                    try (PreparedStatement statement = getConnection().prepareStatement(
-                        "REPLACE INTO usercache (`uuid`, `username`) VALUES(?, ?)")) {
-                        statement.setString(1, uuid.toString());
-                        statement.setString(2, name.toString());
-                        statement.execute();
-                        PlotSquared
-                            .debug(C.PREFIX + "&cAdded '&6" + uuid + "&c' - '&6" + name + "&c'");
-                    } catch (SQLException e) {
-                        e.printStackTrace();
-                    }
+            TaskManager.runTaskAsync(() -> {
+                try (PreparedStatement statement = getConnection().prepareStatement(
+                    "REPLACE INTO usercache (`uuid`, `username`) VALUES(?, ?)")) {
+                    statement.setString(1, uuid.toString());
+                    statement.setString(2, name.toString());
+                    statement.execute();
+                    PlotSquared
+                        .debug(C.PREFIX + "&cAdded '&6" + uuid + "&c' - '&6" + name + "&c'");
+                } catch (SQLException e) {
+                    e.printStackTrace();
                 }
             });
             return true;
@@ -239,18 +229,16 @@ public class SQLUUIDHandler extends UUIDHandlerImplementation {
      */
     @Override public void rename(final UUID uuid, final StringWrapper name) {
         super.rename(uuid, name);
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                try (PreparedStatement statement = getConnection()
-                    .prepareStatement("UPDATE usercache SET `username`=? WHERE `uuid`=?")) {
-                    statement.setString(1, name.value);
-                    statement.setString(2, uuid.toString());
-                    statement.execute();
-                    PlotSquared.debug(
-                        C.PREFIX + "Name change for '" + uuid + "' to '" + name.value + '\'');
-                } catch (SQLException e) {
-                    e.printStackTrace();
-                }
+        TaskManager.runTaskAsync(() -> {
+            try (PreparedStatement statement = getConnection()
+                .prepareStatement("UPDATE usercache SET `username`=? WHERE `uuid`=?")) {
+                statement.setString(1, name.value);
+                statement.setString(2, uuid.toString());
+                statement.execute();
+                PlotSquared.debug(
+                    C.PREFIX + "Name change for '" + uuid + "' to '" + name.value + '\'');
+            } catch (SQLException e) {
+                e.printStackTrace();
             }
         });
     }

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/Configuration.java

@@ -1,6 +1,7 @@
 package com.github.intellectualsites.plotsquared.configuration;
 
 import java.util.Map;
+import javax.annotation.Nonnull;
 
 /**
  * Represents a source of configurable options and settings.
@@ -20,7 +21,7 @@ public interface Configuration extends ConfigurationSection {
      * @param value Value to set the default to.
      * @throws IllegalArgumentException Thrown if path is null.
      */
-    @Override void addDefault(String path, Object value);
+    @Override void addDefault(@Nonnull String path, Object value);
 
     /**
      * Sets the default values of the given paths as provided.

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/ConfigurationOptions.java

@@ -31,7 +31,7 @@ class ConfigurationOptions {
      *
      * @return Path separator
      */
-    public char pathSeparator() {
+    char pathSeparator() {
         return pathSeparator;
     }
 
@@ -64,7 +64,7 @@ class ConfigurationOptions {
      *
      * @return Whether or not defaults are directly copied
      */
-    public boolean copyDefaults() {
+    boolean copyDefaults() {
         return copyDefaults;
     }
 

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/ConfigurationSection.java

@@ -3,6 +3,7 @@ package com.github.intellectualsites.plotsquared.configuration;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import javax.annotation.Nonnull;
 
 /**
  * Represents a section of a {@link Configuration}.
@@ -52,7 +53,7 @@ public interface ConfigurationSection {
      * default or being set.
      * @throws IllegalArgumentException Thrown when path is {@code null}.
      */
-    boolean contains(String path);
+    boolean contains(@Nonnull String path);
 
     /**
      * Checks if this {@link ConfigurationSection} has a value set for the
@@ -66,7 +67,7 @@ public interface ConfigurationSection {
      * having a default.
      * @throws IllegalArgumentException Thrown when path is {@code null}.
      */
-    boolean isSet(String path);
+    boolean isSet(@Nonnull String path);
 
     /**
      * Gets the path of this {@link ConfigurationSection} from its root {@link
@@ -151,7 +152,7 @@ public interface ConfigurationSection {
      * @param defaultValue The default value to return if the path is not found.
      * @return Requested Object.
      */
-    Object get(String path, Object defaultValue);
+    Object getOrDefault(@Nonnull String path, Object defaultValue);
 
     /**
      * Sets the specified path to the given value.
@@ -644,5 +645,5 @@ public interface ConfigurationSection {
      * @param value Value to set the default to
      * @throws IllegalArgumentException Thrown if path is {@code null}
      */
-    void addDefault(String path, Object value);
+    void addDefault(@Nonnull String path, Object value);
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/MemoryConfiguration.java

@@ -1,6 +1,7 @@
 package com.github.intellectualsites.plotsquared.configuration;
 
 import java.util.Map;
+import javax.annotation.Nonnull;
 
 /**
  * This is a {@link Configuration} implementation that does not save or load
@@ -28,7 +29,7 @@ public class MemoryConfiguration extends MemorySection implements Configuration
         this.defaults = defaults;
     }
 
-    @Override public void addDefault(String path, Object value) {
+    @Override public void addDefault(@Nonnull String path, Object value) {
         if (this.defaults == null) {
             this.defaults = new MemoryConfiguration();
         }

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/file/FileConfiguration.java

@@ -6,6 +6,7 @@ import com.github.intellectualsites.plotsquared.configuration.MemoryConfiguratio
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;
+import javax.annotation.Nonnull;
 
 /**
  * This is a base class for all File based implementations of {@link
@@ -82,7 +83,7 @@ public abstract class FileConfiguration extends MemoryConfiguration {
      *                                       a valid Configuration.
      * @throws IllegalArgumentException      Thrown when file is null.
      */
-    public void load(File file) throws IOException, InvalidConfigurationException {
+    public void load(@Nonnull File file) throws IOException, InvalidConfigurationException {
 
         FileInputStream stream = new FileInputStream(file);
 

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/file/YamlConfiguration.java

@@ -83,7 +83,7 @@ public class YamlConfiguration extends FileConfiguration {
 
         Map<?, ?> input;
         try {
-            input = (Map<?, ?>) yaml.load(contents);
+            input = yaml.load(contents);
         } catch (YAMLException e) {
             throw new InvalidConfigurationException(e);
         } catch (ClassCastException ignored) {

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/file/YamlConfigurationOptions.java

@@ -42,7 +42,7 @@ public class YamlConfigurationOptions extends FileConfigurationOptions {
      *
      * @return How much to indent by
      */
-    public int indent() {
+    int indent() {
         return indent;
     }
 

Core/src/main/java/com/github/intellectualsites/plotsquared/configuration/file/YamlConstructor.java

@@ -9,7 +9,7 @@ import org.yaml.snakeyaml.nodes.Tag;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-public class YamlConstructor extends SafeConstructor {
+class YamlConstructor extends SafeConstructor {
 
     YamlConstructor() {
         yamlConstructors.put(Tag.MAP, new ConstructCustomObject());

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/IPlotMain.java

@@ -76,7 +76,9 @@ public interface IPlotMain extends ILogger {
      *
      * @return
      */
-    String getPluginName();
+    default String getPluginName() {
+      return "PlotSquared";
+    }
 
     /**
      * Get the version of Minecraft that is running.

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/Platform.java

@@ -1,6 +1,6 @@
 package com.github.intellectualsites.plotsquared.plot;
 
 public enum Platform {
-    Bukkit, Sponge, Spigot, Cauldron
+    Bukkit, Sponge, Spigot
 
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Area.java

@@ -104,36 +104,34 @@ import java.util.Set;
                                 final String path =
                                     "worlds." + area.worldname + ".areas." + area.id + '-'
                                         + object.min + '-' + object.max;
-                                Runnable run = new Runnable() {
-                                    @Override public void run() {
-                                        if (offsetX != 0) {
-                                            PlotSquared.get().worlds
-                                                .set(path + ".road.offset.x", offsetX);
-                                        }
-                                        if (offsetZ != 0) {
-                                            PlotSquared.get().worlds
-                                                .set(path + ".road.offset.z", offsetZ);
-                                        }
-                                        final String world = SetupUtils.manager.setupWorld(object);
-                                        if (WorldUtil.IMP.isWorld(world)) {
-                                            PlotSquared.get().loadWorld(world, null);
-                                            C.SETUP_FINISHED.send(player);
-                                            player.teleport(WorldUtil.IMP.getSpawn(world));
-                                            if (area.TERRAIN != 3) {
-                                                ChunkManager.largeRegionTask(world, region,
-                                                    new RunnableVal<ChunkLoc>() {
-                                                        @Override public void run(ChunkLoc value) {
-                                                            AugmentedUtils
-                                                                .generate(world, value.x, value.z,
-                                                                    null);
-                                                        }
-                                                    }, null);
-                                            }
-                                        } else {
-                                            MainUtil.sendMessage(player,
-                                                "An error occurred while creating the world: "
-                                                    + area.worldname);
+                                Runnable run = () -> {
+                                    if (offsetX != 0) {
+                                        PlotSquared.get().worlds
+                                            .set(path + ".road.offset.x", offsetX);
+                                    }
+                                    if (offsetZ != 0) {
+                                        PlotSquared.get().worlds
+                                            .set(path + ".road.offset.z", offsetZ);
+                                    }
+                                    final String world = SetupUtils.manager.setupWorld(object);
+                                    if (WorldUtil.IMP.isWorld(world)) {
+                                        PlotSquared.get().loadWorld(world, null);
+                                        C.SETUP_FINISHED.send(player);
+                                        player.teleport(WorldUtil.IMP.getSpawn(world));
+                                        if (area.TERRAIN != 3) {
+                                            ChunkManager.largeRegionTask(world, region,
+                                                new RunnableVal<ChunkLoc>() {
+                                                    @Override public void run(ChunkLoc value) {
+                                                        AugmentedUtils
+                                                            .generate(world, value.x, value.z,
+                                                                null);
+                                                    }
+                                                }, null);
                                         }
+                                    } else {
+                                        MainUtil.sendMessage(player,
+                                            "An error occurred while creating the world: "
+                                                + area.worldname);
                                     }
                                 };
                                 if (hasConfirmation(player)) {
@@ -228,32 +226,30 @@ import java.util.Set;
                                 C.SETUP_WORLD_TAKEN.send(player, pa.worldname);
                                 return false;
                             }
-                            Runnable run = new Runnable() {
-                                @Override public void run() {
-                                    String path = "worlds." + pa.worldname;
-                                    if (!PlotSquared.get().worlds.contains(path)) {
-                                        PlotSquared.get().worlds.createSection(path);
-                                    }
-                                    ConfigurationSection section =
-                                        PlotSquared.get().worlds.getConfigurationSection(path);
-                                    pa.saveConfiguration(section);
-                                    pa.loadConfiguration(section);
-                                    object.plotManager = PlotSquared.imp().getPluginName();
-                                    object.setupGenerator = PlotSquared.imp().getPluginName();
-                                    String world = SetupUtils.manager.setupWorld(object);
-                                    if (WorldUtil.IMP.isWorld(world)) {
-                                        C.SETUP_FINISHED.send(player);
-                                        player.teleport(WorldUtil.IMP.getSpawn(world));
-                                    } else {
-                                        MainUtil.sendMessage(player,
-                                            "An error occurred while creating the world: "
-                                                + pa.worldname);
-                                    }
-                                    try {
-                                        PlotSquared.get().worlds.save(PlotSquared.get().worldsFile);
-                                    } catch (IOException e) {
-                                        e.printStackTrace();
-                                    }
+                            Runnable run = () -> {
+                                String path = "worlds." + pa.worldname;
+                                if (!PlotSquared.get().worlds.contains(path)) {
+                                    PlotSquared.get().worlds.createSection(path);
+                                }
+                                ConfigurationSection section =
+                                    PlotSquared.get().worlds.getConfigurationSection(path);
+                                pa.saveConfiguration(section);
+                                pa.loadConfiguration(section);
+                                object.plotManager = PlotSquared.imp().getPluginName();
+                                object.setupGenerator = PlotSquared.imp().getPluginName();
+                                String world = SetupUtils.manager.setupWorld(object);
+                                if (WorldUtil.IMP.isWorld(world)) {
+                                    C.SETUP_FINISHED.send(player);
+                                    player.teleport(WorldUtil.IMP.getSpawn(world));
+                                } else {
+                                    MainUtil.sendMessage(player,
+                                        "An error occurred while creating the world: "
+                                            + pa.worldname);
+                                }
+                                try {
+                                    PlotSquared.get().worlds.save(PlotSquared.get().worldsFile);
+                                } catch (IOException e) {
+                                    e.printStackTrace();
                                 }
                             };
                             if (hasConfirmation(player)) {
@@ -422,11 +418,7 @@ import java.util.Set;
                         @Override public void run(ChunkLoc value) {
                             AugmentedUtils.generate(area.worldname, value.x, value.z, null);
                         }
-                    }, new Runnable() {
-                        @Override public void run() {
-                            player.sendMessage("Regen complete");
-                        }
-                    });
+                    }, () -> player.sendMessage("Regen complete"));
                 return true;
             }
             case "goto":

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Claim.java

@@ -82,22 +82,14 @@ public class Claim extends SubCommand {
         if (plot.canClaim(player)) {
             plot.owner = player.getUUID();
             final String finalSchematic = schematic;
-            DBFunc.createPlotSafe(plot, new Runnable() {
-                @Override public void run() {
-                    TaskManager.IMP.sync(new RunnableVal<Object>() {
-                        @Override public void run(Object value) {
-                            plot.claim(player, true, finalSchematic, false);
-                            if (area.AUTO_MERGE) {
-                                plot.autoMerge(-1, Integer.MAX_VALUE, player.getUUID(), true);
-                            }
-                        }
-                    });
+            DBFunc.createPlotSafe(plot, () -> TaskManager.IMP.sync(new RunnableVal<Object>() {
+                @Override public void run(Object value) {
+                    plot.claim(player, true, finalSchematic, false);
+                    if (area.AUTO_MERGE) {
+                        plot.autoMerge(-1, Integer.MAX_VALUE, player.getUUID(), true);
+                    }
                 }
-            }, new Runnable() {
-                @Override public void run() {
-                    sendMessage(player, C.PLOT_NOT_CLAIMED);
-                }
-            });
+            }), () -> sendMessage(player, C.PLOT_NOT_CLAIMED));
             return true;
         } else {
             sendMessage(player, C.PLOT_NOT_CLAIMED);

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Cluster.java

@@ -302,6 +302,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster = area.getCluster(player.getLocation());
                 if (cluster == null) {
@@ -347,6 +348,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster = area.getCluster(player.getLocation());
                 if (cluster == null) {
@@ -405,6 +407,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster;
                 if (args.length == 2) {
@@ -440,7 +443,6 @@ import java.util.UUID;
                     PlotSquared.get().getPlots(player.getLocation().getWorld(), uuid))) {
                     PlotCluster current = plot.getCluster();
                     if (current != null && current.equals(cluster)) {
-                        player.getLocation().getWorld();
                         plot.unclaim();
                     }
                 }
@@ -462,6 +464,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster = area.getCluster(player.getLocation());
                 if (cluster == null) {
@@ -534,6 +537,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster;
                 if (args.length == 2) {
@@ -581,6 +585,7 @@ import java.util.UUID;
                 PlotArea area = player.getApplicablePlotArea();
                 if (area == null) {
                     C.NOT_IN_PLOT_WORLD.send(player);
+                    return false;
                 }
                 PlotCluster cluster = area.getCluster(player.getLocation());
                 if (cluster == null) {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Condense.java

@@ -65,6 +65,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
                     sizes.add(size - 1);
                 }
                 // Sort plots by size (buckets?)]
+                //noinspection unchecked
                 ArrayList<Plot>[] buckets = new ArrayList[maxSize];
                 for (int i = 0; i < plots.size(); i++) {
                     Plot plot = plots.get(i);
@@ -126,13 +127,11 @@ import java.util.concurrent.atomic.AtomicBoolean;
                             }
                             i++;
                             final AtomicBoolean result = new AtomicBoolean(false);
-                            result.set(origin.move(possible, new Runnable() {
-                                @Override public void run() {
-                                    if (result.get()) {
-                                        MainUtil.sendMessage(player,
-                                            "Moving: " + origin + " -> " + possible);
-                                        TaskManager.runTaskLater(task, 1);
-                                    }
+                            result.set(origin.move(possible, () -> {
+                                if (result.get()) {
+                                    MainUtil.sendMessage(player,
+                                        "Moving: " + origin + " -> " + possible);
+                                    TaskManager.runTaskLater(task, 1);
                                 }
                             }, false));
                             if (result.get()) {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Database.java

@@ -25,174 +25,163 @@ import java.util.Map.Entry;
 @CommandDeclaration(command = "database", aliases = {"convert"},
     category = CommandCategory.ADMINISTRATION, permission = "plots.database",
     description = "Convert/Backup Storage", requiredType = RequiredType.CONSOLE,
-    usage = "/plot database [area] <sqlite|mysql|import>") public class Database
+    usage = "/plot database [area] <sqlite|mysql|import>")
+public class Database
     extends SubCommand {
 
-    public static void insertPlots(final SQLManager manager, final List<Plot> plots,
-        final PlotPlayer player) {
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                try {
-                    ArrayList<Plot> ps = new ArrayList<>();
-                    for (Plot p : plots) {
-                        ps.add(p);
-                    }
-                    MainUtil.sendMessage(player, "&6Starting...");
-                    manager.createPlotsAndData(ps, new Runnable() {
-                        @Override public void run() {
-                            MainUtil.sendMessage(player, "&6Database conversion finished!");
-                            manager.close();
-                        }
-                    });
-                } catch (Exception e) {
-                    MainUtil.sendMessage(player,
-                        "Failed to insert plot objects, see stacktrace for info");
-                    e.printStackTrace();
-                }
-            }
+  public static void insertPlots(final SQLManager manager, final List<Plot> plots,
+      final PlotPlayer player) {
+    TaskManager.runTaskAsync(() -> {
+      try {
+        ArrayList<Plot> ps = new ArrayList<>(plots);
+        MainUtil.sendMessage(player, "&6Starting...");
+        manager.createPlotsAndData(ps, () -> {
+          MainUtil.sendMessage(player, "&6Database conversion finished!");
+          manager.close();
         });
-    }
+      } catch (Exception e) {
+        MainUtil.sendMessage(player,
+            "Failed to insert plot objects, see stacktrace for info");
+        e.printStackTrace();
+      }
+    });
+  }
 
-    @Override public boolean onCommand(final PlotPlayer player, String[] args) {
-        if (args.length < 1) {
-            MainUtil.sendMessage(player, "/plot database [area] <sqlite|mysql|import>");
-            return false;
-        }
-        List<Plot> plots;
-        PlotArea area = PlotSquared.get().getPlotAreaByString(args[0]);
-        if (area != null) {
-            plots = PlotSquared.get().sortPlotsByTemp(area.getPlots());
-            args = Arrays.copyOfRange(args, 1, args.length);
-        } else {
-            plots = PlotSquared.get().sortPlotsByTemp(PlotSquared.get().getPlots());
-        }
-        if (args.length < 1) {
-            MainUtil.sendMessage(player, "/plot database [world] <sqlite|mysql|import>");
-            MainUtil.sendMessage(player, "[arg] indicates an optional argument");
-            return false;
-        }
-        try {
-            com.github.intellectualsites.plotsquared.plot.database.Database implementation;
-            String prefix = "";
-            switch (args[0].toLowerCase()) {
-                case "import":
-                    if (args.length < 2) {
-                        MainUtil
-                            .sendMessage(player, "/plot database import <sqlite file> [prefix]");
-                        return false;
-                    }
-                    File file = MainUtil.getFile(PlotSquared.get().IMP.getDirectory(),
-                        args[1].endsWith(".db") ? args[1] : args[1] + ".db");
-                    if (!file.exists()) {
-                        MainUtil.sendMessage(player, "&6Database does not exist: " + file);
-                        return false;
-                    }
-                    MainUtil.sendMessage(player, "&6Starting...");
-                    implementation = new SQLite(file);
-                    SQLManager manager =
-                        new SQLManager(implementation, args.length == 3 ? args[2] : "", true);
-                    HashMap<String, HashMap<PlotId, Plot>> map = manager.getPlots();
-                    plots = new ArrayList<>();
-                    for (Entry<String, HashMap<PlotId, Plot>> entry : map.entrySet()) {
-                        String areaname = entry.getKey();
-                        PlotArea pa = PlotSquared.get().getPlotAreaByString(areaname);
-                        if (pa != null) {
-                            for (Entry<PlotId, Plot> entry2 : entry.getValue().entrySet()) {
-                                Plot plot = entry2.getValue();
-                                if (pa.getOwnedPlotAbs(plot.getId()) != null) {
-                                    if (pa instanceof SinglePlotArea) {
-                                        Plot newPlot = pa.getNextFreePlot(null, plot.getId());
-                                        if (newPlot != null) {
-                                            PlotId newId = newPlot.getId();
-                                            PlotId id = plot.getId();
-                                            File worldFile =
-                                                new File(PlotSquared.imp().getWorldContainer(),
-                                                    id.toCommaSeparatedString());
-                                            if (worldFile.exists()) {
-                                                File newFile =
-                                                    new File(PlotSquared.imp().getWorldContainer(),
-                                                        newId.toCommaSeparatedString());
-                                                worldFile.renameTo(newFile);
-                                            }
-                                            id.x = newId.x;
-                                            id.y = newId.y;
-                                            id.recalculateHash();
-                                            plot.setArea(pa);
-                                            plots.add(plot);
-                                            continue;
-                                        }
-                                    }
-                                    MainUtil.sendMessage(player,
-                                        "Skipping duplicate plot: " + plot + " | id=" + plot.temp);
-                                    continue;
-                                }
-                                plot.setArea(pa);
-                                plots.add(plot);
-                            }
-                        } else {
-                            HashMap<PlotId, Plot> plotmap =
-                                PlotSquared.get().plots_tmp.get(areaname);
-                            if (plotmap == null) {
-                                plotmap = new HashMap<>();
-                                PlotSquared.get().plots_tmp.put(areaname, plotmap);
-                            }
-                            plotmap.putAll(entry.getValue());
-                        }
-                    }
-                    DBFunc.createPlotsAndData(plots, new Runnable() {
-                        @Override public void run() {
-                            MainUtil.sendMessage(player, "&6Database conversion finished!");
-                        }
-                    });
-                    return true;
-                case "mysql":
-                    if (args.length < 6) {
-                        return MainUtil.sendMessage(player,
-                            "/plot database mysql [host] [port] [username] [password] [database] {prefix}");
-                    }
-                    String host = args[1];
-                    String port = args[2];
-                    String username = args[3];
-                    String password = args[4];
-                    String database = args[5];
-                    if (args.length > 6) {
-                        prefix = args[6];
-                    }
-                    implementation = new MySQL(host, port, database, username, password);
-                    break;
-                case "sqlite":
-                    if (args.length < 2) {
-                        return MainUtil.sendMessage(player, "/plot database sqlite [file]");
-                    }
-                    File sqliteFile =
-                        MainUtil.getFile(PlotSquared.get().IMP.getDirectory(), args[1] + ".db");
-                    implementation = new SQLite(sqliteFile);
-                    break;
-                default:
-                    return MainUtil.sendMessage(player, "/plot database [sqlite/mysql]");
-            }
-            try {
-                SQLManager manager = new SQLManager(implementation, prefix, true);
-                Database.insertPlots(manager, plots, player);
-                return true;
-            } catch (ClassNotFoundException | SQLException e) {
-                MainUtil.sendMessage(player, "$1Failed to save plots, read stacktrace for info");
-                MainUtil.sendMessage(player,
-                    "&d==== Here is an ugly stacktrace, if you are interested in those things ===");
-                e.printStackTrace();
-                MainUtil.sendMessage(player, "&d==== End of stacktrace ====");
-                MainUtil
-                    .sendMessage(player, "$1Please make sure you are using the correct arguments!");
-                return false;
-            }
-        } catch (ClassNotFoundException | SQLException e) {
-            MainUtil.sendMessage(player, "$1Failed to open connection, read stacktrace for info");
-            MainUtil.sendMessage(player,
-                "&d==== Here is an ugly stacktrace, if you are interested in those things ===");
-            e.printStackTrace();
-            MainUtil.sendMessage(player, "&d==== End of stacktrace ====");
-            MainUtil.sendMessage(player, "$1Please make sure you are using the correct arguments!");
-            return false;
-        }
+  @Override
+  public boolean onCommand(final PlotPlayer player, String[] args) {
+    if (args.length < 1) {
+      MainUtil.sendMessage(player, "/plot database [area] <sqlite|mysql|import>");
+      return false;
     }
+    List<Plot> plots;
+    PlotArea area = PlotSquared.get().getPlotAreaByString(args[0]);
+    if (area != null) {
+      plots = PlotSquared.get().sortPlotsByTemp(area.getPlots());
+      args = Arrays.copyOfRange(args, 1, args.length);
+    } else {
+      plots = PlotSquared.get().sortPlotsByTemp(PlotSquared.get().getPlots());
+    }
+    if (args.length < 1) {
+      MainUtil.sendMessage(player, "/plot database [world] <sqlite|mysql|import>");
+      MainUtil.sendMessage(player, "[arg] indicates an optional argument");
+      return false;
+    }
+    try {
+      com.github.intellectualsites.plotsquared.plot.database.Database implementation;
+      String prefix = "";
+      switch (args[0].toLowerCase()) {
+        case "import":
+          if (args.length < 2) {
+            MainUtil
+                .sendMessage(player, "/plot database import <sqlite file> [prefix]");
+            return false;
+          }
+          File file = MainUtil.getFile(PlotSquared.get().IMP.getDirectory(),
+              args[1].endsWith(".db") ? args[1] : args[1] + ".db");
+          if (!file.exists()) {
+            MainUtil.sendMessage(player, "&6Database does not exist: " + file);
+            return false;
+          }
+          MainUtil.sendMessage(player, "&6Starting...");
+          implementation = new SQLite(file);
+          SQLManager manager =
+              new SQLManager(implementation, args.length == 3 ? args[2] : "", true);
+          HashMap<String, HashMap<PlotId, Plot>> map = manager.getPlots();
+          plots = new ArrayList<>();
+          for (Entry<String, HashMap<PlotId, Plot>> entry : map.entrySet()) {
+            String areaname = entry.getKey();
+            PlotArea pa = PlotSquared.get().getPlotAreaByString(areaname);
+            if (pa != null) {
+              for (Entry<PlotId, Plot> entry2 : entry.getValue().entrySet()) {
+                Plot plot = entry2.getValue();
+                if (pa.getOwnedPlotAbs(plot.getId()) != null) {
+                  if (pa instanceof SinglePlotArea) {
+                    Plot newPlot = pa.getNextFreePlot(null, plot.getId());
+                    if (newPlot != null) {
+                      PlotId newId = newPlot.getId();
+                      PlotId id = plot.getId();
+                      File worldFile =
+                          new File(PlotSquared.imp().getWorldContainer(),
+                              id.toCommaSeparatedString());
+                      if (worldFile.exists()) {
+                        File newFile =
+                            new File(PlotSquared.imp().getWorldContainer(),
+                                newId.toCommaSeparatedString());
+                        worldFile.renameTo(newFile);
+                      }
+                      id.x = newId.x;
+                      id.y = newId.y;
+                      id.recalculateHash();
+                      plot.setArea(pa);
+                      plots.add(plot);
+                      continue;
+                    }
+                  }
+                  MainUtil.sendMessage(player,
+                      "Skipping duplicate plot: " + plot + " | id=" + plot.temp);
+                  continue;
+                }
+                plot.setArea(pa);
+                plots.add(plot);
+              }
+            } else {
+              HashMap<PlotId, Plot> plotmap =
+                  PlotSquared.get().plots_tmp
+                      .computeIfAbsent(areaname, k -> new HashMap<>());
+              plotmap.putAll(entry.getValue());
+            }
+          }
+          DBFunc.createPlotsAndData(plots,
+              () -> MainUtil.sendMessage(player, "&6Database conversion finished!"));
+          return true;
+        case "mysql":
+          if (args.length < 6) {
+            return MainUtil.sendMessage(player,
+                "/plot database mysql [host] [port] [username] [password] [database] {prefix}");
+          }
+          String host = args[1];
+          String port = args[2];
+          String username = args[3];
+          String password = args[4];
+          String database = args[5];
+          if (args.length > 6) {
+            prefix = args[6];
+          }
+          implementation = new MySQL(host, port, database, username, password);
+          break;
+        case "sqlite":
+          if (args.length < 2) {
+            return MainUtil.sendMessage(player, "/plot database sqlite [file]");
+          }
+          File sqliteFile =
+              MainUtil.getFile(PlotSquared.get().IMP.getDirectory(), args[1] + ".db");
+          implementation = new SQLite(sqliteFile);
+          break;
+        default:
+          return MainUtil.sendMessage(player, "/plot database [sqlite/mysql]");
+      }
+      try {
+        SQLManager manager = new SQLManager(implementation, prefix, true);
+        Database.insertPlots(manager, plots, player);
+        return true;
+      } catch (ClassNotFoundException | SQLException e) {
+        MainUtil.sendMessage(player, "$1Failed to save plots, read stacktrace for info");
+        MainUtil.sendMessage(player,
+            "&d==== Here is an ugly stacktrace, if you are interested in those things ===");
+        e.printStackTrace();
+        MainUtil.sendMessage(player, "&d==== End of stacktrace ====");
+        MainUtil
+            .sendMessage(player, "$1Please make sure you are using the correct arguments!");
+        return false;
+      }
+    } catch (ClassNotFoundException | SQLException e) {
+      MainUtil.sendMessage(player, "$1Failed to open connection, read stacktrace for info");
+      MainUtil.sendMessage(player,
+          "&d==== Here is an ugly stacktrace, if you are interested in those things ===");
+      e.printStackTrace();
+      MainUtil.sendMessage(player, "&d==== End of stacktrace ====");
+      MainUtil.sendMessage(player, "$1Please make sure you are using the correct arguments!");
+      return false;
+    }
+  }
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Help.java

@@ -57,9 +57,7 @@ public class Help extends Command {
     public void displayHelp(PlotPlayer player, String cat, int page) {
         CommandCategory catEnum = null;
         if (cat != null) {
-            if (StringMan.isEqualIgnoreCase(cat, "all")) {
-                catEnum = null;
-            } else {
+            if (!StringMan.isEqualIgnoreCase(cat, "all")) {
                 for (CommandCategory c : CommandCategory.values()) {
                     if (StringMan.isEqualIgnoreCaseToAny(cat, c.name(), c.toString())) {
                         catEnum = c;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Inbox.java

@@ -165,9 +165,8 @@ import java.util.Optional;
                     inbox.clearInbox(plot);
                     Optional<ArrayList<PlotComment>> comments =
                         plot.getSettings().getComments(inbox.toString());
-                    if (comments.isPresent()) {
-                        plot.getSettings().removeComments(comments.get());
-                    }
+                    comments
+                        .ifPresent(plotComments -> plot.getSettings().removeComments(plotComments));
                     MainUtil.sendMessage(player, C.COMMENT_REMOVED, "*");
                     return true;
                 default:

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Merge.java

@@ -60,9 +60,9 @@ public class Merge extends SubCommand {
         }
         final PlotArea plotArea = plot.getArea();
         Expression<Double> priceExr =
-            plotArea.PRICES.containsKey("merge") ? plotArea.PRICES.get("merge") : null;
+            plotArea.PRICES.getOrDefault("merge", Expression.constant(0d));
         final int size = plot.getConnectedPlots().size();
-        final double price = priceExr == null ? 0d : priceExr.evaluate((double) size);
+        final double price = priceExr.evaluate((double) size);
         if (EconHandler.manager != null && plotArea.USE_ECONOMY && price > 0d
             && EconHandler.manager.getMoney(player) < price) {
             sendMessage(player, C.CANNOT_AFFORD_MERGE, String.valueOf(price));

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Purge.java

@@ -108,9 +108,7 @@ import java.util.UUID;
             if (unknown && UUIDHandler.getName(plot.owner) != null) {
                 continue;
             }
-            for (Plot current : plot.getConnectedPlots()) {
-                toDelete.add(current);
-            }
+            toDelete.addAll(plot.getConnectedPlots());
         }
         if (PlotSquared.get().plots_tmp != null) {
             for (Entry<String, HashMap<PlotId, Plot>> entry : PlotSquared.get().plots_tmp
@@ -143,23 +141,21 @@ import java.util.UUID;
         }
         String cmd =
             "/plot purge " + StringMan.join(args, " ") + " (" + toDelete.size() + " plots)";
-        Runnable run = new Runnable() {
-            @Override public void run() {
-                PlotSquared.debug("Calculating plots to purge, please wait...");
-                HashSet<Integer> ids = new HashSet<>();
-                for (Plot plot : toDelete) {
-                    if (plot.temp != Integer.MAX_VALUE) {
-                        ids.add(plot.temp);
-                        plot.getArea().removePlot(plot.getId());
-                        for (PlotPlayer pp : plot.getPlayersInPlot()) {
-                            PlotListener.plotEntry(pp, plot);
-                        }
-                        plot.removeSign();
+        Runnable run = () -> {
+            PlotSquared.debug("Calculating plots to purge, please wait...");
+            HashSet<Integer> ids = new HashSet<>();
+            for (Plot plot : toDelete) {
+                if (plot.temp != Integer.MAX_VALUE) {
+                    ids.add(plot.temp);
+                    plot.getArea().removePlot(plot.getId());
+                    for (PlotPlayer pp : plot.getPlayersInPlot()) {
+                        PlotListener.plotEntry(pp, plot);
                     }
+                    plot.removeSign();
                 }
-                DBFunc.purgeIds(ids);
-                C.PURGE_SUCCESS.send(player, ids.size() + "/" + toDelete.size());
             }
+            DBFunc.purgeIds(ids);
+            C.PURGE_SUCCESS.send(player, ids.size() + "/" + toDelete.size());
         };
         if (hasConfirmation(player)) {
             CmdConfirm.addPending(player, cmd, run);

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/commands/Rate.java

@@ -22,25 +22,23 @@ import java.util.Map.Entry;
             switch (args[0].toLowerCase()) {
                 case "next": {
                     ArrayList<Plot> plots = new ArrayList<>(PlotSquared.get().getBasePlots());
-                    Collections.sort(plots, new Comparator<Plot>() {
-                        @Override public int compare(Plot p1, Plot p2) {
-                            double v1 = 0;
-                            if (!p1.getRatings().isEmpty()) {
-                                for (Entry<UUID, Rating> entry : p1.getRatings().entrySet()) {
-                                    v1 -= 11 - entry.getValue().getAverageRating();
-                                }
+                    plots.sort((p1, p2) -> {
+                        double v1 = 0;
+                        if (!p1.getRatings().isEmpty()) {
+                            for (Entry<UUID, Rating> entry : p1.getRatings().entrySet()) {
+                                v1 -= 11 - entry.getValue().getAverageRating();
                             }
-                            double v2 = 0;
-                            if (!p2.getRatings().isEmpty()) {
-                                for (Entry<UUID, Rating> entry : p2.getRatings().entrySet()) {
-                                    v2 -= 11 - entry.getValue().getAverageRating();
-                                }
-                            }
-                            if (v1 == v2) {
-                                return -0;
-                            }
-                            return v2 > v1 ? 1 : -1;
                         }
+                        double v2 = 0;
+                        if (!p2.getRatings().isEmpty()) {
+                            for (Entry<UUID, Rating> entry : p2.getRatings().entrySet()) {
+                                v2 -= 11 - entry.getValue().getAverageRating();
+                            }
+                        }
+                        if (v1 == v2) {
+                            return -0;
+                        }
+                        return v2 > v1 ? 1 : -1;
                     });
                     UUID uuid = player.getUUID();
                     for (Plot p : plots) {
@@ -123,7 +121,7 @@ import java.util.Map.Entry;
                             return true;
                         }
                     };
-                    inventory.setItem(0, new PlotItemStack(35, (short) 12, 0, "0/8"));
+                    inventory.setItem(0, new PlotItemStack("minecraft:brown_wool", 0, "0/8"));
                     inventory.setItem(1, new PlotItemStack(35, (short) 14, 1, "1/8"));
                     inventory.setItem(2, new PlotItemStack(35, (short) 1, 2, "2/8"));
                     inventory.setItem(3, new PlotItemStack(35, (short) 4, 3, "3/8"));
@@ -137,11 +135,9 @@ import java.util.Map.Entry;
             };
             if (plot.getSettings().ratings == null) {
                 if (!Settings.Enabled_Components.RATING_CACHE) {
-                    TaskManager.runTaskAsync(new Runnable() {
-                        @Override public void run() {
-                            plot.getSettings().ratings = DBFunc.getRatings(plot);
-                            run.run();
-                        }
+                    TaskManager.runTaskAsync(() -> {
+                        plot.getSettings().ratings = DBFunc.getRatings(plot);
+                        run.run();
                     });
                     return true;
                 }
@@ -167,26 +163,22 @@ import java.util.Map.Entry;
             return false;
         }
         final UUID uuid = player.getUUID();
-        final Runnable run = new Runnable() {
-            @Override public void run() {
-                if (plot.getRatings().containsKey(uuid)) {
-                    sendMessage(player, C.RATING_ALREADY_EXISTS, plot.getId().toString());
-                    return;
-                }
-                Rating result = EventUtil.manager.callRating(player, plot, new Rating(rating));
-                if (result != null) {
-                    plot.addRating(uuid, result);
-                    sendMessage(player, C.RATING_APPLIED, plot.getId().toString());
-                }
+        final Runnable run = () -> {
+            if (plot.getRatings().containsKey(uuid)) {
+                sendMessage(player, C.RATING_ALREADY_EXISTS, plot.getId().toString());
+                return;
+            }
+            Rating result = EventUtil.manager.callRating(player, plot, new Rating(rating));
+            if (result != null) {
+                plot.addRating(uuid, result);
+                sendMessage(player, C.RATING_APPLIED, plot.getId().toString());
             }
         };
         if (plot.getSettings().ratings == null) {
             if (!Settings.Enabled_Components.RATING_CACHE) {
-                TaskManager.runTaskAsync(new Runnable() {
-                    @Override public void run() {
-                        plot.getSettings().ratings = DBFunc.getRatings(plot);
-                        run.run();
-                    }
+                TaskManager.runTaskAsync(() -> {
+                    plot.getSettings().ratings = DBFunc.getRatings(plot);
+                    run.run();
                 });
                 return true;
             }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/database/AbstractDB.java

@@ -143,14 +143,6 @@ public interface AbstractDB {
      */
     void setFlags(Plot plot, HashMap<Flag<?>, Object> flags);
 
-    /**
-     * Set cluster flags.
-     *
-     * @param cluster PlotCluster Object
-     * @param flags   flags to set (flag[])
-     */
-    void setFlags(PlotCluster cluster, HashMap<Flag<?>, Object> flags);
-
     /**
      * Rename a cluster to the given name.
      *

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/database/DBFunc.java

@@ -13,6 +13,7 @@ import java.util.*;
  * Database Functions
  * - These functions do not update the local plot objects and only make changes to the DB
  */
+@SuppressWarnings("deprecation")
 public class DBFunc {
     /**
      * The "global" uuid.
@@ -298,17 +299,6 @@ public class DBFunc {
         DBFunc.dbManager.setFlags(plot, flags);
     }
 
-    public static void setFlags(PlotCluster cluster, HashMap<Flag<?>, Object> flags) {
-        if (dbManager == null) {
-            return;
-        }
-        DBFunc.dbManager.setFlags(cluster, flags);
-    }
-
-    /**
-     * @param plot
-     * @param alias
-     */
     public static void setAlias(Plot plot, String alias) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -330,10 +320,6 @@ public class DBFunc {
         DBFunc.dbManager.purge(area, plotIds);
     }
 
-    /**
-     * @param plot
-     * @param position
-     */
     public static void setPosition(Plot plot, String position) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -341,10 +327,6 @@ public class DBFunc {
         DBFunc.dbManager.setPosition(plot, position);
     }
 
-    /**
-     * @param plot
-     * @param comment
-     */
     public static void removeComment(Plot plot, PlotComment comment) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -359,10 +341,6 @@ public class DBFunc {
         DBFunc.dbManager.clearInbox(plot, inbox);
     }
 
-    /**
-     * @param plot
-     * @param comment
-     */
     public static void setComment(Plot plot, PlotComment comment) {
         if (plot != null && plot.temp == -1 || dbManager == null) {
             return;
@@ -370,9 +348,6 @@ public class DBFunc {
         DBFunc.dbManager.setComment(plot, comment);
     }
 
-    /**
-     * @param plot
-     */
     public static void getComments(Plot plot, String inbox,
         RunnableVal<List<PlotComment>> whenDone) {
         if (plot != null && plot.temp == -1 || dbManager == null) {
@@ -381,10 +356,6 @@ public class DBFunc {
         DBFunc.dbManager.getComments(plot, inbox, whenDone);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void removeTrusted(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -392,10 +363,6 @@ public class DBFunc {
         DBFunc.dbManager.removeTrusted(plot, uuid);
     }
 
-    /**
-     * @param cluster
-     * @param uuid
-     */
     public static void removeHelper(PlotCluster cluster, UUID uuid) {
         if (dbManager == null) {
             return;
@@ -403,9 +370,6 @@ public class DBFunc {
         DBFunc.dbManager.removeHelper(cluster, uuid);
     }
 
-    /**
-     * @param cluster
-     */
     public static void createCluster(PlotCluster cluster) {
         if (dbManager == null) {
             return;
@@ -413,11 +377,6 @@ public class DBFunc {
         DBFunc.dbManager.createCluster(cluster);
     }
 
-    /**
-     * @param current
-     * @param min
-     * @param max
-     */
     public static void resizeCluster(PlotCluster current, PlotId min, PlotId max) {
         if (dbManager == null) {
             return;
@@ -425,10 +384,6 @@ public class DBFunc {
         DBFunc.dbManager.resizeCluster(current, min, max);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void removeMember(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -436,10 +391,6 @@ public class DBFunc {
         DBFunc.dbManager.removeMember(plot, uuid);
     }
 
-    /**
-     * @param cluster
-     * @param uuid
-     */
     public static void removeInvited(PlotCluster cluster, UUID uuid) {
         if (dbManager == null) {
             return;
@@ -447,10 +398,6 @@ public class DBFunc {
         DBFunc.dbManager.removeInvited(cluster, uuid);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void setTrusted(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -465,10 +412,6 @@ public class DBFunc {
         DBFunc.dbManager.setHelper(cluster, uuid);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void setMember(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -483,10 +426,6 @@ public class DBFunc {
         DBFunc.dbManager.setInvited(cluster, uuid);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void removeDenied(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;
@@ -494,10 +433,6 @@ public class DBFunc {
         DBFunc.dbManager.removeDenied(plot, uuid);
     }
 
-    /**
-     * @param plot
-     * @param uuid
-     */
     public static void setDenied(Plot plot, UUID uuid) {
         if (plot.temp == -1 || dbManager == null) {
             return;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/database/Database.java

@@ -11,9 +11,9 @@ import java.sql.Statement;
  * @author -_Husky_-
  * @author tips48
  */
-public abstract class Database {
+public interface Database {
 
-    public abstract Connection forceConnection() throws SQLException, ClassNotFoundException;
+    Connection forceConnection() throws SQLException, ClassNotFoundException;
 
     /**
      * Opens a connection with the database.
@@ -22,7 +22,7 @@ public abstract class Database {
      * @throws SQLException           if the connection can not be opened
      * @throws ClassNotFoundException if the driver cannot be found
      */
-    public abstract Connection openConnection() throws SQLException, ClassNotFoundException;
+    Connection openConnection() throws SQLException, ClassNotFoundException;
 
     /**
      * Checks if a connection is open with the database.
@@ -30,14 +30,14 @@ public abstract class Database {
      * @return true if the connection is open
      * @throws SQLException if the connection cannot be checked
      */
-    public abstract boolean checkConnection() throws SQLException;
+    boolean checkConnection() throws SQLException;
 
     /**
      * Gets the connection with the database.
      *
      * @return Connection with the database, null if none
      */
-    public abstract Connection getConnection();
+    Connection getConnection();
 
     /**
      * Closes the connection with the database.
@@ -45,7 +45,7 @@ public abstract class Database {
      * @return true if successful
      * @throws SQLException if the connection cannot be closed
      */
-    public abstract boolean closeConnection() throws SQLException;
+    boolean closeConnection() throws SQLException;
 
     /**
      * Executes a SQL Query.
@@ -56,7 +56,7 @@ public abstract class Database {
      * @throws SQLException           If the query cannot be executed
      * @throws ClassNotFoundException If the driver cannot be found; see {@link #openConnection()}
      */
-    public abstract ResultSet querySQL(String query) throws SQLException, ClassNotFoundException;
+    ResultSet querySQL(String query) throws SQLException, ClassNotFoundException;
 
     /**
      * Executes an Update SQL Query.
@@ -68,5 +68,5 @@ public abstract class Database {
      * @throws SQLException           If the query cannot be executed
      * @throws ClassNotFoundException If the driver cannot be found; see {@link #openConnection()}
      */
-    public abstract int updateSQL(String query) throws SQLException, ClassNotFoundException;
+    int updateSQL(String query) throws SQLException, ClassNotFoundException;
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/database/MySQL.java

@@ -11,7 +11,7 @@ import java.sql.*;
  * @author -_Husky_-
  * @author tips48
  */
-public class MySQL extends Database {
+public class MySQL implements Database {
 
     private final String user;
     private final String database;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/database/SQLite.java

@@ -9,7 +9,7 @@ import java.sql.*;
 /**
  * Connects to and uses a SQLite database.
  */
-public class SQLite extends Database {
+public class SQLite implements Database {
 
     private final String dbLocation;
     private Connection connection;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/flag/FlagManager.java

@@ -114,6 +114,7 @@ public class FlagManager {
      * @param flag
      * @return
      */
+    @SuppressWarnings("deprecation")
     public static <V> V getPlotFlagRaw(Plot plot, Flag<V> flag) {
         if (plot.owner == null) {
             return null;
@@ -141,13 +142,6 @@ public class FlagManager {
         return true;
     }
 
-    public static <V> boolean addClusterFlag(PlotCluster cluster, Flag<V> flag, V value) {
-        getSettingFlag(cluster.area, cluster.settings, flag);
-        cluster.settings.flags.put(flag, value);
-        DBFunc.setFlags(cluster, cluster.settings.flags);
-        return true;
-    }
-
     /**
      * Returns a map of the {@link Flag}s and their values for the specified plot.
      *
@@ -217,20 +211,6 @@ public class FlagManager {
         return true;
     }
 
-    public static boolean removeClusterFlag(PlotCluster cluster, Flag id) {
-        Object object = cluster.settings.flags.remove(id);
-        if (object == null) {
-            return false;
-        }
-        boolean result = EventUtil.manager.callFlagRemove(id, object, cluster);
-        if (!result) {
-            cluster.settings.flags.put(id, object);
-            return false;
-        }
-        DBFunc.setFlags(cluster, cluster.settings.flags);
-        return true;
-    }
-
     public static void setPlotFlags(Plot origin, HashMap<Flag<?>, Object> flags) {
         for (Plot plot : origin.getConnectedPlots()) {
             if (flags != null && !flags.isEmpty()) {
@@ -248,20 +228,6 @@ public class FlagManager {
         }
     }
 
-    public static void setClusterFlags(PlotCluster cluster, Set<Flag> flags) {
-        if (flags != null && !flags.isEmpty()) {
-            cluster.settings.flags.clear();
-            for (Flag flag : flags) {
-                cluster.settings.flags.put(flag, flag);
-            }
-        } else if (cluster.settings.flags.isEmpty()) {
-            return;
-        } else {
-            cluster.settings.flags.clear();
-        }
-        DBFunc.setFlags(cluster, cluster.settings.flags);
-    }
-
     /**
      * Get a list of registered {@link Flag} objects based on player permissions.
      *

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/generator/HybridPlotWorld.java

@@ -277,11 +277,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
             id = rotate(id);
         }
         int pair = MathMan.pair(x, z);
-        BaseBlock[] existing = this.G_SCH.get(pair);
-        if (existing == null) {
-            existing = new BaseBlock[height];
-            this.G_SCH.put(pair, existing);
-        }
+        BaseBlock[] existing = this.G_SCH.computeIfAbsent(pair, k -> new BaseBlock[height]);
         existing[y] = id;
     }
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/logger/ILogger.java

@@ -1,5 +1,6 @@
 package com.github.intellectualsites.plotsquared.plot.logger;
 
+@FunctionalInterface
 public interface ILogger {
     void log(String message);
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/Expression.java

@@ -4,9 +4,12 @@ import com.github.intellectualsites.plotsquared.plot.PlotSquared;
 import com.github.intellectualsites.plotsquared.plot.commands.DebugExec;
 import com.github.intellectualsites.plotsquared.plot.commands.MainCommand;
 
+import javax.annotation.Nonnull;
 import javax.script.ScriptException;
 
 public abstract class Expression<T> {
+
+    @Nonnull
     public static <U> Expression<U> constant(final U value) {
         return new Expression<U>() {
             @Override public U evaluate(U arg) {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/PlotArea.java

@@ -721,6 +721,9 @@ public abstract class PlotArea {
             } else {
                 start = start.getNextId(1);
             }
+            if (start == null) {
+                PlotSquared.debug("NPE possible in getNextFreePlot");
+            }
             currentId = new PlotId(center.x + start.x, center.y + start.y);
             Plot plot = getPlotAbs(currentId);
             if (plot != null && plot.canClaim(player)) {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/PlotCluster.java

@@ -5,19 +5,25 @@ import com.github.intellectualsites.plotsquared.plot.util.MainUtil;
 
 import java.util.HashSet;
 import java.util.UUID;
+import javax.annotation.Nonnull;
+import lombok.Getter;
 
 public class PlotCluster {
     public PlotArea area;
+    @Nonnull
+    @Getter
     public PlotSettings settings;
     public UUID owner;
     public HashSet<UUID> helpers = new HashSet<>();
     public HashSet<UUID> invited = new HashSet<>();
     public int temp;
+    @Nonnull
     private PlotId pos1;
+    @Nonnull
     private PlotId pos2;
     private RegionWrapper region;
 
-    public PlotCluster(PlotArea area, PlotId pos1, PlotId pos2, UUID owner) {
+    public PlotCluster(PlotArea area, @Nonnull PlotId pos1, @Nonnull PlotId pos2, UUID owner) {
         this.area = area;
         this.pos1 = pos1;
         this.pos2 = pos2;
@@ -27,7 +33,7 @@ public class PlotCluster {
         setRegion();
     }
 
-    public PlotCluster(PlotArea area, PlotId pos1, PlotId pos2, UUID owner, int temp) {
+    public PlotCluster(PlotArea area, @Nonnull PlotId pos1, PlotId pos2, UUID owner, int temp) {
         this.area = area;
         this.pos1 = pos1;
         this.pos2 = pos2;
@@ -82,6 +88,11 @@ public class PlotCluster {
         return this.settings.getAlias();
     }
 
+    public String getAlias() {
+        return this.settings.getAlias();
+    }
+
+    public void setName(String name) { this.settings.setAlias(name);}
     /**
      * Get the area (in plots).
      *

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/PlotMessage.java

@@ -13,6 +13,7 @@ public class PlotMessage {
         try {
             reset(ChatManager.manager);
         } catch (Throwable e) {
+            assert PlotSquared.imp() != null;
             PlotSquared.debug(
                 PlotSquared.imp().getPluginName() + " doesn't support fancy chat for " + PlotSquared
                     .get().IMP.getServerVersion());

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/PlotSettings.java

@@ -42,7 +42,7 @@ public class PlotSettings {
     /**
      * Flags.
      *
-     * @deprecated Raw access
+     * @deprecated Raw access. Not compatible with PlotClusters.
      */
     @Deprecated public HashMap<Flag<?>, Object> flags = new HashMap<>();
     /**
@@ -85,7 +85,7 @@ public class PlotSettings {
         return this.ratings;
     }
 
-    public boolean setMerged(int direction, boolean merged) {
+    boolean setMerged(int direction, boolean merged) {
         if (this.merged[direction] != merged) {
             this.merged[direction] = merged;
             return true;
@@ -142,6 +142,7 @@ public class PlotSettings {
         }
     }
 
+    //todo need a plot method
     public Optional<ArrayList<PlotComment>> getComments(String inbox) {
         ArrayList<PlotComment> c = new ArrayList<>();
         if (this.comments == null) {
@@ -155,22 +156,26 @@ public class PlotSettings {
         return Optional.of(c);
     }
 
+    //todo need a plot method
     public void setComments(List<PlotComment> comments) {
         this.comments = comments;
     }
 
+    //todo need a plot method
     public void removeComment(PlotComment comment) {
         if (this.comments.contains(comment)) {
             this.comments.remove(comment);
         }
     }
 
+    //todo need a plot method
     public void removeComments(List<PlotComment> comments) {
         for (PlotComment comment : comments) {
             removeComment(comment);
         }
     }
 
+    //todo need a plot method
     public void addComment(PlotComment comment) {
         if (this.comments == null) {
             this.comments = new ArrayList<>();

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/stream/AbstractDelegateOutputStream.java

@@ -4,30 +4,31 @@ import java.io.IOException;
 import java.io.OutputStream;
 
 public class AbstractDelegateOutputStream extends OutputStream {
-    private final OutputStream parent;
 
-    public AbstractDelegateOutputStream(OutputStream os) {
-        this.parent = os;
-    }
+  private final OutputStream parent;
 
-    @Override public void write(int b) throws IOException {
-        parent.write(b);
-    }
+  public AbstractDelegateOutputStream(OutputStream os) {
+    this.parent = os;
+  }
 
-    @Override public void write(byte[] b) throws IOException {
-        parent.write(b);
-    }
+  @Override
+  public void write(int b) throws IOException {
+    parent.write(b);
+  }
 
-    @Override public void write(byte[] b, int off, int len) throws IOException {
-        parent.write(b, off, len);
-    }
+  @Override
+  public void write(byte[] b) throws IOException {
+    parent.write(b);
+  }
     
-    @Override public void flush() throws IOException {
-        parent.flush();
-    }
+  @Override
+  public void flush() throws IOException {
+    parent.flush();
+  }
 
-    @Override public void close() throws IOException {
-        parent.close();
-    }
+  @Override
+  public void close() throws IOException {
+    parent.close();
+  }
 }
 

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/worlds/DefaultPlotAreaManager.java

@@ -88,9 +88,9 @@ public class DefaultPlotAreaManager implements PlotAreaManager {
         HashSet<PlotArea> globalAreas = new HashSet<>(Arrays.asList(plotAreas));
         localAreas.add(plotArea);
         globalAreas.add(plotArea);
-        this.plotAreas = globalAreas.toArray(new PlotArea[globalAreas.size()]);
+        this.plotAreas = globalAreas.toArray(new PlotArea[0]);
         this.plotAreaMap
-            .put(plotArea.worldname, localAreas.toArray(new PlotArea[localAreas.size()]));
+            .put(plotArea.worldname, localAreas.toArray(new PlotArea[0]));
         QuadMap<PlotArea> map = this.plotAreaGrid.get(plotArea.worldname);
         if (map == null) {
             map = new QuadMap<PlotArea>(Integer.MAX_VALUE, 0, 0) {
@@ -104,15 +104,15 @@ public class DefaultPlotAreaManager implements PlotAreaManager {
     }
 
     @Override public void removePlotArea(PlotArea area) {
-        ArrayList<PlotArea> globalAreas = new ArrayList<PlotArea>(Arrays.asList(plotAreas));
+        ArrayList<PlotArea> globalAreas = new ArrayList<>(Arrays.asList(plotAreas));
         globalAreas.remove(area);
-        this.plotAreas = globalAreas.toArray(new PlotArea[globalAreas.size()]);
+        this.plotAreas = globalAreas.toArray(new PlotArea[0]);
         if (globalAreas.isEmpty()) {
             this.plotAreaMap.remove(area.worldname);
             this.plotAreaGrid.remove(area.worldname);
         } else {
             this.plotAreaMap
-                .put(area.worldname, globalAreas.toArray(new PlotArea[globalAreas.size()]));
+                .put(area.worldname, globalAreas.toArray(new PlotArea[0]));
             this.plotAreaGrid.get(area.worldname).remove(area);
         }
     }
@@ -206,7 +206,7 @@ public class DefaultPlotAreaManager implements PlotAreaManager {
             return noPlotAreas;
         } else {
             Set<PlotArea> found = areas.get(region);
-            return found.toArray(new PlotArea[found.size()]);
+            return found.toArray(new PlotArea[0]);
         }
     }
 
@@ -217,14 +217,14 @@ public class DefaultPlotAreaManager implements PlotAreaManager {
         Set<String> tmp = new LinkedHashSet<>();
         Collections.addAll(tmp, worlds);
         tmp.add(worldName);
-        worlds = tmp.toArray(new String[tmp.size()]);
+        worlds = tmp.toArray(new String[0]);
     }
 
     @Override public void removeWorld(String worldName) {
         Set<String> tmp = new LinkedHashSet<>();
         Collections.addAll(tmp, worlds);
         tmp.remove(worldName);
-        worlds = tmp.toArray(new String[tmp.size()]);
+        worlds = tmp.toArray(new String[0]);
     }
 
     @Override public String[] getAllWorlds() {

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/worlds/PlotAreaManager.java

@@ -5,24 +5,24 @@ import com.github.intellectualsites.plotsquared.plot.object.PlotArea;
 import com.github.intellectualsites.plotsquared.plot.object.RegionWrapper;
 
 public interface PlotAreaManager {
-    public PlotArea getApplicablePlotArea(Location location);
+    PlotArea getApplicablePlotArea(Location location);
 
-    public PlotArea getPlotArea(Location location);
+    PlotArea getPlotArea(Location location);
 
-    public PlotArea getPlotArea(String world, String id);
+    PlotArea getPlotArea(String world, String id);
 
-    public PlotArea[] getPlotAreas(String world, RegionWrapper region);
+    PlotArea[] getPlotAreas(String world, RegionWrapper region);
 
-    public PlotArea[] getAllPlotAreas();
+    PlotArea[] getAllPlotAreas();
 
-    public String[] getAllWorlds();
+    String[] getAllWorlds();
 
-    public void addPlotArea(PlotArea area);
+    void addPlotArea(PlotArea area);
 
-    public void removePlotArea(PlotArea area);
+    void removePlotArea(PlotArea area);
 
-    public void addWorld(String worldName);
+    void addWorld(String worldName);
 
-    public void removeWorld(String worldName);
+    void removeWorld(String worldName);
 
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/worlds/SinglePlot.java

@@ -7,6 +7,7 @@ import com.github.intellectualsites.plotsquared.plot.object.*;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.UUID;
+import javax.annotation.Nonnull;
 
 public class SinglePlot extends Plot {
     private HashSet<RegionWrapper> regions;
@@ -40,6 +41,7 @@ public class SinglePlot extends Plot {
         return getId().toCommaSeparatedString();
     }
 
+    @Nonnull
     @Override public SinglePlotArea getArea() {
         return (SinglePlotArea) super.getArea();
     }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/worlds/SinglePlotAreaManager.java

@@ -35,8 +35,7 @@ public class SinglePlotAreaManager extends DefaultPlotAreaManager {
         if (chars.length == 1 && chars[0] == '*') {
             return true;
         }
-        for (int i = 0; i < chars.length; i++) {
-            char c = chars[i];
+        for (char c : chars) {
             switch (mode) {
                 case 0:
                     mode = 1;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/object/worlds/SinglePlotManager.java

@@ -30,12 +30,10 @@ public class SinglePlotManager extends PlotManager {
         SetupUtils.manager.unload(plot.getWorldName(), false);
         final File worldFolder =
             new File(PlotSquared.get().IMP.getWorldContainer(), plot.getWorldName());
-        TaskManager.IMP.taskAsync(new Runnable() {
-            @Override public void run() {
-                MainUtil.deleteDirectory(worldFolder);
-                if (whenDone != null)
-                    whenDone.run();
-            }
+        TaskManager.IMP.taskAsync(() -> {
+            MainUtil.deleteDirectory(worldFolder);
+            if (whenDone != null)
+                whenDone.run();
         });
         return true;
     }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/AbstractTitle.java

@@ -15,6 +15,6 @@ public abstract class AbstractTitle {
         }
     }
 
-    public abstract void sendTitle(PlotPlayer player, String head, String sub, int in, int delay,
+    protected abstract void sendTitle(PlotPlayer player, String head, String sub, int in, int delay,
         int out);
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/ChunkManager.java

@@ -71,41 +71,39 @@ public abstract class ChunkManager {
 
     public static void largeRegionTask(final String world, final RegionWrapper region,
         final RunnableVal<ChunkLoc> task, final Runnable whenDone) {
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                HashSet<ChunkLoc> chunks = new HashSet<>();
-                Set<ChunkLoc> mcrs = manager.getChunkChunks(world);
-                for (ChunkLoc mcr : mcrs) {
-                    int bx = mcr.x << 9;
-                    int bz = mcr.z << 9;
-                    int tx = bx + 511;
-                    int tz = bz + 511;
-                    if (bx <= region.maxX && tx >= region.minX && bz <= region.maxZ
-                        && tz >= region.minZ) {
-                        for (int x = bx >> 4; x <= (tx >> 4); x++) {
-                            int cbx = x << 4;
-                            int ctx = cbx + 15;
-                            if (cbx <= region.maxX && ctx >= region.minX) {
-                                for (int z = bz >> 4; z <= (tz >> 4); z++) {
-                                    int cbz = z << 4;
-                                    int ctz = cbz + 15;
-                                    if (cbz <= region.maxZ && ctz >= region.minZ) {
-                                        chunks.add(new ChunkLoc(x, z));
-                                    }
+        TaskManager.runTaskAsync(() -> {
+            HashSet<ChunkLoc> chunks = new HashSet<>();
+            Set<ChunkLoc> mcrs = manager.getChunkChunks(world);
+            for (ChunkLoc mcr : mcrs) {
+                int bx = mcr.x << 9;
+                int bz = mcr.z << 9;
+                int tx = bx + 511;
+                int tz = bz + 511;
+                if (bx <= region.maxX && tx >= region.minX && bz <= region.maxZ
+                    && tz >= region.minZ) {
+                    for (int x = bx >> 4; x <= (tx >> 4); x++) {
+                        int cbx = x << 4;
+                        int ctx = cbx + 15;
+                        if (cbx <= region.maxX && ctx >= region.minX) {
+                            for (int z = bz >> 4; z <= (tz >> 4); z++) {
+                                int cbz = z << 4;
+                                int ctz = cbz + 15;
+                                if (cbz <= region.maxZ && ctz >= region.minZ) {
+                                    chunks.add(new ChunkLoc(x, z));
                                 }
                             }
                         }
                     }
                 }
-                TaskManager.objectTask(chunks, new RunnableVal<ChunkLoc>() {
-
-                    @Override public void run(ChunkLoc value) {
-                        if (manager.loadChunk(world, value, false)) {
-                            task.run(value);
-                        }
-                    }
-                }, whenDone);
             }
+            TaskManager.objectTask(chunks, new RunnableVal<ChunkLoc>() {
+
+                @Override public void run(ChunkLoc value) {
+                    if (manager.loadChunk(world, value, false)) {
+                        task.run(value);
+                    }
+                }
+            }, whenDone);
         });
     }
 
@@ -239,20 +237,18 @@ public abstract class ChunkManager {
 
     public void deleteRegionFiles(final String world, final Collection<ChunkLoc> chunks,
         final Runnable whenDone) {
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                for (ChunkLoc loc : chunks) {
-                    String directory =
-                        world + File.separator + "region" + File.separator + "r." + loc.x + "."
-                            + loc.z + ".mca";
-                    File file = new File(PlotSquared.get().IMP.getWorldContainer(), directory);
-                    PlotSquared.log("&6 - Deleting file: " + file.getName() + " (max 1024 chunks)");
-                    if (file.exists()) {
-                        file.delete();
-                    }
+        TaskManager.runTaskAsync(() -> {
+            for (ChunkLoc loc : chunks) {
+                String directory =
+                    world + File.separator + "region" + File.separator + "r." + loc.x + "."
+                        + loc.z + ".mca";
+                File file = new File(PlotSquared.get().IMP.getWorldContainer(), directory);
+                PlotSquared.log("&6 - Deleting file: " + file.getName() + " (max 1024 chunks)");
+                if (file.exists()) {
+                    file.delete();
                 }
-                TaskManager.runTask(whenDone);
             }
+            TaskManager.runTask(whenDone);
         });
     }
 

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/CmdConfirm.java

@@ -19,11 +19,9 @@ public class CmdConfirm {
         removePending(player);
         if (commandStr != null)
             MainUtil.sendMessage(player, C.REQUIRES_CONFIRM, commandStr);
-        TaskManager.runTaskLater(new Runnable() {
-            @Override public void run() {
-                CmdInstance cmd = new CmdInstance(runnable);
-                player.setMeta("cmdConfirm", cmd);
-            }
+        TaskManager.runTaskLater(() -> {
+            CmdInstance cmd = new CmdInstance(runnable);
+            player.setMeta("cmdConfirm", cmd);
         }, 1);
     }
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/CommentManager.java

@@ -20,34 +20,32 @@ public class CommentManager {
         if (!Settings.Enabled_Components.COMMENT_NOTIFIER || !plot.isOwner(player.getUUID())) {
             return;
         }
-        TaskManager.runTaskLaterAsync(new Runnable() {
-            @Override public void run() {
-                Collection<CommentInbox> boxes = CommentManager.inboxes.values();
-                final AtomicInteger count = new AtomicInteger(0);
-                final AtomicInteger size = new AtomicInteger(boxes.size());
-                for (final CommentInbox inbox : inboxes.values()) {
-                    inbox.getComments(plot, new RunnableVal<List<PlotComment>>() {
-                        @Override public void run(List<PlotComment> value) {
-                            int total;
-                            if (value != null) {
-                                int num = 0;
-                                for (PlotComment comment : value) {
-                                    if (comment.timestamp > getTimestamp(player,
-                                        inbox.toString())) {
-                                        num++;
-                                    }
+        TaskManager.runTaskLaterAsync(() -> {
+            Collection<CommentInbox> boxes = CommentManager.inboxes.values();
+            final AtomicInteger count = new AtomicInteger(0);
+            final AtomicInteger size = new AtomicInteger(boxes.size());
+            for (final CommentInbox inbox : inboxes.values()) {
+                inbox.getComments(plot, new RunnableVal<List<PlotComment>>() {
+                    @Override public void run(List<PlotComment> value) {
+                        int total;
+                        if (value != null) {
+                            int num = 0;
+                            for (PlotComment comment : value) {
+                                if (comment.timestamp > getTimestamp(player,
+                                    inbox.toString())) {
+                                    num++;
                                 }
-                                total = count.addAndGet(num);
-                            } else {
-                                total = count.get();
-                            }
-                            if ((size.decrementAndGet() == 0) && (total > 0)) {
-                                AbstractTitle.sendTitle(player, "",
-                                    C.INBOX_NOTIFICATION.s().replaceAll("%s", "" + total));
                             }
+                            total = count.addAndGet(num);
+                        } else {
+                            total = count.get();
                         }
-                    });
-                }
+                        if ((size.decrementAndGet() == 0) && (total > 0)) {
+                            AbstractTitle.sendTitle(player, "",
+                                C.INBOX_NOTIFICATION.s().replaceAll("%s", "" + total));
+                        }
+                    }
+                });
             }
         }, 20);
     }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/EventUtil.java

@@ -43,8 +43,6 @@ public abstract class EventUtil {
 
     public abstract boolean callFlagRemove(Flag<?> flag, Plot plot, Object value);
 
-    public abstract boolean callFlagRemove(Flag<?> flag, Object value, PlotCluster cluster);
-
     public abstract boolean callMerge(Plot plot, int dir, int max);
 
     public abstract boolean callAutoMerge(Plot plot, List<PlotId> plots);
@@ -78,11 +76,7 @@ public abstract class EventUtil {
         }
         final Plot plot = player.getCurrentPlot();
         if (Settings.Teleport.ON_LOGIN && plot != null) {
-            TaskManager.runTask(new Runnable() {
-                @Override public void run() {
-                    plot.teleportPlayer(player);
-                }
-            });
+            TaskManager.runTask(() -> plot.teleportPlayer(player));
             MainUtil.sendMessage(player,
                 C.TELEPORTED_TO_ROAD.f() + " (on-login) " + "(" + plot.getId().x + ";" + plot
                     .getId().y + ")");

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/MainUtil.java

@@ -411,7 +411,7 @@ public class MainUtil {
 
         ArrayList<ArrayList<Plot>> plotList = new ArrayList<>(size);
         for (int i = 0; i < size; i++) {
-            plotList.add(new ArrayList<Plot>());
+            plotList.add(new ArrayList<>());
         }
 
         for (Plot plot : PlotSquared.get().getPlots()) {
@@ -430,7 +430,7 @@ public class MainUtil {
                     count++;
                 }
             }
-            if (area != null && plot.getArea().equals(area)) {
+            if (plot.getArea().equals(area)) {
                 count++;
             }
             if (alias != null && alias.equals(plot.getAlias())) {
@@ -622,14 +622,12 @@ public class MainUtil {
         if (caption.s().isEmpty()) {
             return true;
         }
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                String m = C.format(caption, args);
-                if (player == null) {
-                    PlotSquared.log(m);
-                } else {
-                    player.sendMessage(m);
-                }
+        TaskManager.runTaskAsync(() -> {
+            String m = C.format(caption, args);
+            if (player == null) {
+                PlotSquared.log(m);
+            } else {
+                player.sendMessage(m);
             }
         });
         return true;
@@ -780,31 +778,29 @@ public class MainUtil {
         info = info.replace("%desc%", "No description set.");
         if (info.contains("%rating%")) {
             final String newInfo = info;
-            TaskManager.runTaskAsync(new Runnable() {
-                @Override public void run() {
-                    int max = 10;
-                    if (Settings.Ratings.CATEGORIES != null && !Settings.Ratings.CATEGORIES
-                        .isEmpty()) {
-                        max = 8;
-                    }
-                    String info;
-                    if (full && Settings.Ratings.CATEGORIES != null
-                        && Settings.Ratings.CATEGORIES.size() > 1) {
-                        double[] ratings = MainUtil.getAverageRatings(plot);
-                        String rating = "";
-                        String prefix = "";
-                        for (int i = 0; i < ratings.length; i++) {
-                            rating += prefix + Settings.Ratings.CATEGORIES.get(i) + '=' + String
-                                .format("%.1f", ratings[i]);
-                            prefix = ",";
-                        }
-                        info = newInfo.replaceAll("%rating%", rating);
-                    } else {
-                        info = newInfo.replaceAll("%rating%",
-                            String.format("%.1f", plot.getAverageRating()) + '/' + max);
-                    }
-                    whenDone.run(info);
+            TaskManager.runTaskAsync(() -> {
+                int max = 10;
+                if (Settings.Ratings.CATEGORIES != null && !Settings.Ratings.CATEGORIES
+                    .isEmpty()) {
+                    max = 8;
                 }
+                String info1;
+                if (full && Settings.Ratings.CATEGORIES != null
+                    && Settings.Ratings.CATEGORIES.size() > 1) {
+                    double[] ratings = MainUtil.getAverageRatings(plot);
+                    String rating = "";
+                    String prefix = "";
+                    for (int i = 0; i < ratings.length; i++) {
+                        rating += prefix + Settings.Ratings.CATEGORIES.get(i) + '=' + String
+                            .format("%.1f", ratings[i]);
+                        prefix = ",";
+                    }
+                    info1 = newInfo.replaceAll("%rating%", rating);
+                } else {
+                    info1 = newInfo.replaceAll("%rating%",
+                        String.format("%.1f", plot.getAverageRating()) + '/' + max);
+                }
+                whenDone.run(info1);
             });
             return;
         }
@@ -815,10 +811,9 @@ public class MainUtil {
         if (directory.exists()) {
             File[] files = directory.listFiles();
             if (null != files) {
-                for (int i = 0; i < files.length; i++) {
-                    File file = files[i];
+                for (File file : files) {
                     if (file.isDirectory()) {
-                        deleteDirectory(files[i]);
+                        deleteDirectory(file);
                     } else {
                         PlotSquared.debug("Deleting file: " + file + " | " + file.delete());
                     }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/SchematicHandler.java

@@ -87,7 +87,7 @@ public abstract class SchematicHandler {
                                 } else {
                                     MainUtil.sendMessage(null, "&7 - &a  success: " + plot.getId());
                                 }
-                                TaskManager.runTask(() -> THIS.run());
+                                TaskManager.runTask(THIS);
                             });
                         }
                     }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/block/GlobalBlockQueue.java

@@ -13,292 +13,292 @@ import java.util.concurrent.atomic.AtomicBoolean;
 
 public class GlobalBlockQueue {
 
-    public static GlobalBlockQueue IMP;
-    private final int PARALLEL_THREADS;
-    private final ConcurrentLinkedDeque<LocalBlockQueue> activeQueues;
-    private final ConcurrentLinkedDeque<LocalBlockQueue> inactiveQueues;
-    private final ConcurrentLinkedDeque<Runnable> runnables;
-    private final AtomicBoolean running;
-    private QueueProvider provider;
-    /**
-     * Used to calculate elapsed time in milliseconds and ensure block placement doesn't lag the server
-     */
-    private long last;
-    private long secondLast;
-    private long lastSuccess;
-    private final RunnableVal2<Long, LocalBlockQueue> SET_TASK =
-        new RunnableVal2<Long, LocalBlockQueue>() {
-            @Override public void run(Long free, LocalBlockQueue queue) {
-                do {
-                    boolean more = queue.next();
-                    if (!more) {
-                        lastSuccess = last;
-                        if (inactiveQueues.size() == 0 && activeQueues.size() == 0) {
-                            tasks();
-                        }
-                        return;
-                    }
-                } while (((GlobalBlockQueue.this.secondLast = System.currentTimeMillis())
-                    - GlobalBlockQueue.this.last) < free);
+  public static GlobalBlockQueue IMP;
+  private final int PARALLEL_THREADS;
+  private final ConcurrentLinkedDeque<LocalBlockQueue> activeQueues;
+  private final ConcurrentLinkedDeque<LocalBlockQueue> inactiveQueues;
+  private final ConcurrentLinkedDeque<Runnable> runnables;
+  private final AtomicBoolean running;
+  private QueueProvider provider;
+  /**
+   * Used to calculate elapsed time in milliseconds and ensure block placement doesn't lag the
+   * server
+   */
+  private long last;
+  private long secondLast;
+  private long lastSuccess;
+  private final RunnableVal2<Long, LocalBlockQueue> SET_TASK =
+      new RunnableVal2<Long, LocalBlockQueue>() {
+        @Override
+        public void run(Long free, LocalBlockQueue queue) {
+          do {
+            boolean more = queue.next();
+            if (!more) {
+              lastSuccess = last;
+              if (inactiveQueues.size() == 0 && activeQueues.size() == 0) {
+                tasks();
+              }
+              return;
             }
-        };
-
-    public GlobalBlockQueue(QueueProvider provider, int threads) {
-        this.provider = provider;
-        activeQueues = new ConcurrentLinkedDeque<>();
-        inactiveQueues = new ConcurrentLinkedDeque<>();
-        runnables = new ConcurrentLinkedDeque<>();
-        running = new AtomicBoolean();
-        this.PARALLEL_THREADS = threads;
-    }
-
-    public QueueProvider getProvider() {
-        return provider;
-    }
-
-    public void setProvider(QueueProvider provider) {
-        this.provider = provider;
-    }
-
-    public LocalBlockQueue getNewQueue(String world, boolean autoQueue) {
-        LocalBlockQueue queue = provider.getNewQueue(world);
-        if (autoQueue) {
-            inactiveQueues.add(queue);
+          } while (((GlobalBlockQueue.this.secondLast = System.currentTimeMillis())
+              - GlobalBlockQueue.this.last) < free);
         }
-        return queue;
-    }
+      };
 
-    public boolean stop() {
-        if (!running.get()) {
-            return false;
-        }
-        running.set(false);
-        return true;
-    }
+  public GlobalBlockQueue(QueueProvider provider, int threads) {
+    this.provider = provider;
+    activeQueues = new ConcurrentLinkedDeque<>();
+    inactiveQueues = new ConcurrentLinkedDeque<>();
+    runnables = new ConcurrentLinkedDeque<>();
+    running = new AtomicBoolean();
+    this.PARALLEL_THREADS = threads;
+  }
 
-    public boolean runTask() {
-        if (running.get()) {
-            return false;
-        }
-        running.set(true);
-        TaskManager.runTaskRepeat(new Runnable() {
-            @Override public void run() {
-                if (inactiveQueues.isEmpty() && activeQueues.isEmpty()) {
-                    lastSuccess = System.currentTimeMillis();
-                    tasks();
-                    return;
-                }
-                SET_TASK.value1 = 50 + Math.min(
-                    (50 + GlobalBlockQueue.this.last) - (GlobalBlockQueue.this.last =
-                        System.currentTimeMillis()),
-                    GlobalBlockQueue.this.secondLast - System.currentTimeMillis());
-                SET_TASK.value2 = getNextQueue();
-                if (SET_TASK.value2 == null) {
-                    return;
-                }
-                if (!PlotSquared.get().isMainThread(Thread.currentThread())) {
-                    throw new IllegalStateException(
-                        "This shouldn't be possible for placement to occur off the main thread");
-                }
-                // Disable the async catcher as it can't discern async vs parallel
-                SET_TASK.value2.startSet(true);
-                try {
-                    if (PARALLEL_THREADS <= 1) {
-                        SET_TASK.run();
-                    } else {
-                        ArrayList<Thread> threads = new ArrayList<Thread>();
-                        for (int i = 0; i < PARALLEL_THREADS; i++) {
-                            threads.add(new Thread(SET_TASK));
-                        }
-                        for (Thread thread : threads) {
-                            thread.start();
-                        }
-                        for (Thread thread : threads) {
-                            try {
-                                thread.join();
-                            } catch (InterruptedException e) {
-                                e.printStackTrace();
-                            }
-                        }
-                    }
-                } catch (Throwable e) {
-                    e.printStackTrace();
-                } finally {
-                    // Enable it again (note that we are still on the main thread)
-                    SET_TASK.value2.endSet(true);
-                }
-            }
-        }, 1);
-        return true;
-    }
+  public QueueProvider getProvider() {
+    return provider;
+  }
 
-    public QueueStage getStage(LocalBlockQueue queue) {
-        if (activeQueues.contains(queue)) {
-            return QueueStage.ACTIVE;
-        } else if (inactiveQueues.contains(queue)) {
-            return QueueStage.INACTIVE;
-        }
-        return QueueStage.NONE;
-    }
+  public void setProvider(QueueProvider provider) {
+    this.provider = provider;
+  }
 
-    public boolean isStage(LocalBlockQueue queue, QueueStage stage) {
-        switch (stage) {
-            case ACTIVE:
-                return activeQueues.contains(queue);
-            case INACTIVE:
-                return inactiveQueues.contains(queue);
-            case NONE:
-                return !activeQueues.contains(queue) && !inactiveQueues.contains(queue);
-        }
-        return false;
+  public LocalBlockQueue getNewQueue(String world, boolean autoQueue) {
+    LocalBlockQueue queue = provider.getNewQueue(world);
+    if (autoQueue) {
+      inactiveQueues.add(queue);
     }
+    return queue;
+  }
 
-    public void enqueue(LocalBlockQueue queue) {
-        inactiveQueues.remove(queue);
-        if (queue.size() > 0 && !activeQueues.contains(queue)) {
-            queue.optimize();
-            activeQueues.add(queue);
-        }
+  public boolean stop() {
+    if (!running.get()) {
+      return false;
     }
+    running.set(false);
+    return true;
+  }
 
-    public void dequeue(LocalBlockQueue queue) {
-        inactiveQueues.remove(queue);
-        activeQueues.remove(queue);
+  public boolean runTask() {
+    if (running.get()) {
+      return false;
     }
-
-    public List<LocalBlockQueue> getAllQueues() {
-        ArrayList<LocalBlockQueue> list =
-            new ArrayList<LocalBlockQueue>(activeQueues.size() + inactiveQueues.size());
-        list.addAll(inactiveQueues);
-        list.addAll(activeQueues);
-        return list;
-    }
-
-    public List<LocalBlockQueue> getActiveQueues() {
-        return new ArrayList<>(activeQueues);
-    }
-
-    public List<LocalBlockQueue> getInactiveQueues() {
-        return new ArrayList<>(inactiveQueues);
-    }
-
-    public void flush(LocalBlockQueue queue) {
-        SET_TASK.value1 = Long.MAX_VALUE;
-        SET_TASK.value2 = queue;
-        if (SET_TASK.value2 == null) {
-            return;
-        }
-        if (PlotSquared.get().isMainThread(Thread.currentThread())) {
-            throw new IllegalStateException("Must be flushed on the main thread!");
-        }
-        // Disable the async catcher as it can't discern async vs parallel
-        SET_TASK.value2.startSet(true);
-        try {
-            if (PARALLEL_THREADS <= 1) {
-                SET_TASK.run();
-            } else {
-                ArrayList<Thread> threads = new ArrayList<Thread>();
-                for (int i = 0; i < PARALLEL_THREADS; i++) {
-                    threads.add(new Thread(SET_TASK));
-                }
-                for (Thread thread : threads) {
-                    thread.start();
-                }
-                for (Thread thread : threads) {
-                    try {
-                        thread.join();
-                    } catch (InterruptedException e) {
-                        e.printStackTrace();
-                    }
-                }
-            }
-        } catch (Throwable e) {
-            e.printStackTrace();
-        } finally {
-            // Enable it again (note that we are still on the main thread)
-            SET_TASK.value2.endSet(true);
-            dequeue(queue);
-        }
-    }
-
-    public LocalBlockQueue getNextQueue() {
-        long now = System.currentTimeMillis();
-        while (activeQueues.size() > 0) {
-            LocalBlockQueue queue = activeQueues.peek();
-            if (queue != null && queue.size() > 0) {
-                queue.setModified(now);
-                return queue;
-            } else {
-                activeQueues.poll();
-            }
-        }
-        int size = inactiveQueues.size();
-        if (size > 0) {
-            Iterator<LocalBlockQueue> iter = inactiveQueues.iterator();
+    running.set(true);
+    TaskManager.runTaskRepeat(() -> {
+      if (inactiveQueues.isEmpty() && activeQueues.isEmpty()) {
+        lastSuccess = System.currentTimeMillis();
+        tasks();
+        return;
+      }
+      SET_TASK.value1 = 50 + Math.min(
+          (50 + GlobalBlockQueue.this.last) - (GlobalBlockQueue.this.last =
+              System.currentTimeMillis()),
+          GlobalBlockQueue.this.secondLast - System.currentTimeMillis());
+      SET_TASK.value2 = getNextQueue();
+      if (SET_TASK.value2 == null) {
+        return;
+      }
+      if (!PlotSquared.get().isMainThread(Thread.currentThread())) {
+        throw new IllegalStateException(
+            "This shouldn't be possible for placement to occur off the main thread");
+      }
+      // Disable the async catcher as it can't discern async vs parallel
+      SET_TASK.value2.startSet(true);
+      try {
+        if (PARALLEL_THREADS <= 1) {
+          SET_TASK.run();
+        } else {
+          ArrayList<Thread> threads = new ArrayList<Thread>();
+          for (int i = 0; i < PARALLEL_THREADS; i++) {
+            threads.add(new Thread(SET_TASK));
+          }
+          for (Thread thread : threads) {
+            thread.start();
+          }
+          for (Thread thread : threads) {
             try {
-                int total = 0;
-                LocalBlockQueue firstNonEmpty = null;
-                while (iter.hasNext()) {
-                    LocalBlockQueue queue = iter.next();
-                    long age = now - queue.getModified();
-                    total += queue.size();
-                    if (queue.size() == 0) {
-                        if (age > 1000) {
-                            iter.remove();
-                        }
-                        continue;
-                    }
-                    if (firstNonEmpty == null) {
-                        firstNonEmpty = queue;
-                    }
-                    if (total > 64) {
-                        firstNonEmpty.setModified(now);
-                        return firstNonEmpty;
-                    }
-                    if (age > 60000) {
-                        queue.setModified(now);
-                        return queue;
-                    }
-                }
-            } catch (ConcurrentModificationException e) {
-                e.printStackTrace();
+              thread.join();
+            } catch (InterruptedException e) {
+              e.printStackTrace();
             }
+          }
         }
-        return null;
-    }
+      } catch (Throwable e) {
+        e.printStackTrace();
+      } finally {
+        // Enable it again (note that we are still on the main thread)
+        SET_TASK.value2.endSet(true);
+      }
+    }, 1);
+    return true;
+  }
 
-    public boolean isDone() {
-        return activeQueues.size() == 0 && inactiveQueues.size() == 0;
+  public QueueStage getStage(LocalBlockQueue queue) {
+    if (activeQueues.contains(queue)) {
+      return QueueStage.ACTIVE;
+    } else if (inactiveQueues.contains(queue)) {
+      return QueueStage.INACTIVE;
     }
+    return QueueStage.NONE;
+  }
 
-    public boolean addTask(final Runnable whenDone) {
-        if (this.isDone()) {
-            // Run
-            this.tasks();
-            if (whenDone != null) {
-                whenDone.run();
+  public boolean isStage(LocalBlockQueue queue, QueueStage stage) {
+    switch (stage) {
+      case ACTIVE:
+        return activeQueues.contains(queue);
+      case INACTIVE:
+        return inactiveQueues.contains(queue);
+      case NONE:
+        return !activeQueues.contains(queue) && !inactiveQueues.contains(queue);
+    }
+    return false;
+  }
+
+  public void enqueue(LocalBlockQueue queue) {
+    inactiveQueues.remove(queue);
+    if (queue.size() > 0 && !activeQueues.contains(queue)) {
+      queue.optimize();
+      activeQueues.add(queue);
+    }
+  }
+
+  public void dequeue(LocalBlockQueue queue) {
+    inactiveQueues.remove(queue);
+    activeQueues.remove(queue);
+  }
+
+  public List<LocalBlockQueue> getAllQueues() {
+    ArrayList<LocalBlockQueue> list =
+        new ArrayList<>(activeQueues.size() + inactiveQueues.size());
+    list.addAll(inactiveQueues);
+    list.addAll(activeQueues);
+    return list;
+  }
+
+  public List<LocalBlockQueue> getActiveQueues() {
+    return new ArrayList<>(activeQueues);
+  }
+
+  public List<LocalBlockQueue> getInactiveQueues() {
+    return new ArrayList<>(inactiveQueues);
+  }
+
+  public void flush(LocalBlockQueue queue) {
+    SET_TASK.value1 = Long.MAX_VALUE;
+    SET_TASK.value2 = queue;
+    if (SET_TASK.value2 == null) {
+      return;
+    }
+    if (PlotSquared.get().isMainThread(Thread.currentThread())) {
+      throw new IllegalStateException("Must be flushed on the main thread!");
+    }
+    // Disable the async catcher as it can't discern async vs parallel
+    SET_TASK.value2.startSet(true);
+    try {
+      if (PARALLEL_THREADS <= 1) {
+        SET_TASK.run();
+      } else {
+        ArrayList<Thread> threads = new ArrayList<>();
+        for (int i = 0; i < PARALLEL_THREADS; i++) {
+          threads.add(new Thread(SET_TASK));
+        }
+        for (Thread thread : threads) {
+          thread.start();
+        }
+        for (Thread thread : threads) {
+          try {
+            thread.join();
+          } catch (InterruptedException e) {
+            e.printStackTrace();
+          }
+        }
+      }
+    } catch (Throwable e) {
+      e.printStackTrace();
+    } finally {
+      // Enable it again (note that we are still on the main thread)
+      SET_TASK.value2.endSet(true);
+      dequeue(queue);
+    }
+  }
+
+  public LocalBlockQueue getNextQueue() {
+    long now = System.currentTimeMillis();
+    while (activeQueues.size() > 0) {
+      LocalBlockQueue queue = activeQueues.peek();
+      if (queue != null && queue.size() > 0) {
+        queue.setModified(now);
+        return queue;
+      } else {
+        activeQueues.poll();
+      }
+    }
+    int size = inactiveQueues.size();
+    if (size > 0) {
+      Iterator<LocalBlockQueue> iter = inactiveQueues.iterator();
+      try {
+        int total = 0;
+        LocalBlockQueue firstNonEmpty = null;
+        while (iter.hasNext()) {
+          LocalBlockQueue queue = iter.next();
+          long age = now - queue.getModified();
+          total += queue.size();
+          if (queue.size() == 0) {
+            if (age > 1000) {
+              iter.remove();
             }
-            return true;
+            continue;
+          }
+          if (firstNonEmpty == null) {
+            firstNonEmpty = queue;
+          }
+          if (total > 64) {
+            firstNonEmpty.setModified(now);
+            return firstNonEmpty;
+          }
+          if (age > 60000) {
+            queue.setModified(now);
+            return queue;
+          }
         }
-        if (whenDone != null) {
-            this.runnables.add(whenDone);
-        }
-        return false;
+      } catch (ConcurrentModificationException e) {
+        e.printStackTrace();
+      }
     }
+    return null;
+  }
 
-    public synchronized boolean tasks() {
-        if (this.runnables.isEmpty()) {
-            return false;
-        }
-        final ArrayList<Runnable> tmp = new ArrayList<>(this.runnables);
-        this.runnables.clear();
-        for (final Runnable runnable : tmp) {
-            runnable.run();
-        }
-        return true;
-    }
+  public boolean isDone() {
+    return activeQueues.size() == 0 && inactiveQueues.size() == 0;
+  }
 
-    public enum QueueStage {
-        INACTIVE, ACTIVE, NONE;
+  public boolean addTask(final Runnable whenDone) {
+    if (this.isDone()) {
+      // Run
+      this.tasks();
+      if (whenDone != null) {
+        whenDone.run();
+      }
+      return true;
     }
+    if (whenDone != null) {
+      this.runnables.add(whenDone);
+    }
+    return false;
+  }
+
+  public synchronized boolean tasks() {
+    if (this.runnables.isEmpty()) {
+      return false;
+    }
+    final ArrayList<Runnable> tmp = new ArrayList<>(this.runnables);
+    this.runnables.clear();
+    for (final Runnable runnable : tmp) {
+      runnable.run();
+    }
+    return true;
+  }
+
+  public enum QueueStage {
+    INACTIVE, ACTIVE, NONE
+  }
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/expiry/ExpireManager.java

@@ -19,454 +19,435 @@ import java.util.concurrent.ConcurrentLinkedDeque;
 
 public class ExpireManager {
 
-    public static ExpireManager IMP;
-    private final ConcurrentHashMap<UUID, Long> dates_cache;
-    private final ConcurrentHashMap<UUID, Long> account_age_cache;
-    private volatile HashSet<Plot> plotsToDelete;
-    private ArrayDeque<ExpiryTask> tasks;
-    /**
-     * 0 = stopped, 1 = stopping, 2 = running
-     */
-    private int running;
+  public static ExpireManager IMP;
+  private final ConcurrentHashMap<UUID, Long> dates_cache;
+  private final ConcurrentHashMap<UUID, Long> account_age_cache;
+  private volatile HashSet<Plot> plotsToDelete;
+  private ArrayDeque<ExpiryTask> tasks;
+  /**
+   * 0 = stopped, 1 = stopping, 2 = running
+   */
+  private int running;
 
-    public ExpireManager() {
-        tasks = new ArrayDeque<>();
-        dates_cache = new ConcurrentHashMap<>();
-        account_age_cache = new ConcurrentHashMap<>();
+  public ExpireManager() {
+    tasks = new ArrayDeque<>();
+    dates_cache = new ConcurrentHashMap<>();
+    account_age_cache = new ConcurrentHashMap<>();
+  }
+
+  public void addTask(ExpiryTask task) {
+    PlotSquared.debug("Adding new expiry task!");
+    this.tasks.add(task);
+  }
+
+  public void handleJoin(PlotPlayer pp) {
+    storeDate(pp.getUUID(), System.currentTimeMillis());
+    if (plotsToDelete != null && !plotsToDelete.isEmpty()) {
+      for (Plot plot : pp.getPlots()) {
+        plotsToDelete.remove(plot);
+      }
     }
+    confirmExpiry(pp);
+  }
 
-    public void addTask(ExpiryTask task) {
-        PlotSquared.debug("Adding new expiry task!");
-        this.tasks.add(task);
-    }
-
-    public void handleJoin(PlotPlayer pp) {
-        storeDate(pp.getUUID(), System.currentTimeMillis());
-        if (plotsToDelete != null && !plotsToDelete.isEmpty()) {
-            for (Plot plot : pp.getPlots()) {
-                plotsToDelete.remove(plot);
-            }
-        }
+  public void handleEntry(PlotPlayer pp, Plot plot) {
+    if (plotsToDelete != null && !plotsToDelete.isEmpty() && pp
+        .hasPermission("plots.admin.command.autoclear") && plotsToDelete.contains(plot)) {
+      if (!isExpired(new ArrayDeque<>(tasks), plot).isEmpty()) {
         confirmExpiry(pp);
+      } else {
+        plotsToDelete.remove(plot);
+        confirmExpiry(pp);
+      }
     }
+  }
 
-    public void handleEntry(PlotPlayer pp, Plot plot) {
-        if (plotsToDelete != null && !plotsToDelete.isEmpty() && pp
-            .hasPermission("plots.admin.command.autoclear") && plotsToDelete.contains(plot)) {
-            if (!isExpired(new ArrayDeque<>(tasks), plot).isEmpty()) {
-                confirmExpiry(pp);
-            } else {
-                plotsToDelete.remove(plot);
-                confirmExpiry(pp);
-            }
-        }
+  /**
+   * Gets the account last joined - first joined (or Long.MAX_VALUE)
+   *
+   * @return result
+   */
+  public long getAccountAge(UUID uuid) {
+    Long value = this.account_age_cache.get(uuid);
+    return value == null ? Long.MAX_VALUE : value;
+  }
+
+  public long getTimestamp(UUID uuid) {
+    Long value = this.dates_cache.get(uuid);
+    return value == null ? 0 : value;
+  }
+
+  public void updateExpired(Plot plot) {
+    if (plotsToDelete != null && !plotsToDelete.isEmpty() && plotsToDelete.contains(plot)) {
+      if (isExpired(new ArrayDeque<>(tasks), plot).isEmpty()) {
+        plotsToDelete.remove(plot);
+      }
     }
+  }
 
-    /**
-     * Gets the account last joined - first joined (or Long.MAX_VALUE)
-     *
-     * @param uuid
-     * @return result
-     */
-    public long getAccountAge(UUID uuid) {
-        Long value = this.account_age_cache.get(uuid);
-        return value == null ? Long.MAX_VALUE : value;
+  public void confirmExpiry(final PlotPlayer pp) {
+    if (pp.getMeta("ignoreExpireTask") != null) {
+      return;
     }
-
-    public long getTimestamp(UUID uuid) {
-        Long value = this.dates_cache.get(uuid);
-        return value == null ? 0 : value;
-    }
-
-    public void updateExpired(Plot plot) {
-        if (plotsToDelete != null && !plotsToDelete.isEmpty() && plotsToDelete.contains(plot)) {
-            if (isExpired(new ArrayDeque<>(tasks), plot).isEmpty()) {
-                plotsToDelete.remove(plot);
-            }
-        }
-    }
-
-    public void confirmExpiry(final PlotPlayer pp) {
-        if (pp.getMeta("ignoreExpireTask") != null) {
-            return;
-        }
-        if (plotsToDelete != null && !plotsToDelete.isEmpty() && pp
-            .hasPermission("plots.admin.command.autoclear")) {
-            final int num = plotsToDelete.size();
-            while (!plotsToDelete.isEmpty()) {
-                Iterator<Plot> iter = plotsToDelete.iterator();
-                final Plot current = iter.next();
-                if (!isExpired(new ArrayDeque<>(tasks), current).isEmpty()) {
-                    TaskManager.runTask(new Runnable() {
-                        @Override public void run() {
-                            pp.setMeta("ignoreExpireTask", true);
-                            pp.teleport(current.getCenter());
-                            pp.deleteMeta("ignoreExpireTask");
-                            PlotMessage msg = new PlotMessage().text(
-                                num + " " + (num > 1 ? "plots are" : "plot is") + " expired: ")
-                                .color("$1").text(current.toString()).color("$2")
-                                .suggest("/plot list expired").tooltip("/plot list expired")
-                                //.text("\n - ").color("$3").text("Delete all (/plot delete expired)").color("$2").command("/plot delete expired")
-                                .text("\n - ").color("$3").text("Delete this (/plot delete)")
-                                .color("$2").suggest("/plot delete").tooltip("/plot delete")
-                                .text("\n - ").color("$3").text("Remind later (/plot set keep 1d)")
-                                .color("$2").suggest("/plot set keep 1d")
-                                .tooltip("/plot set keep 1d").text("\n - ").color("$3")
-                                .text("Keep this (/plot set keep true)").color("$2")
-                                .suggest("/plot set keep true").tooltip("/plot set keep true")
-                                .text("\n - ").color("$3").text("Don't show me this").color("$2")
-                                .suggest("/plot toggle clear-confirmation")
-                                .tooltip("/plot toggle clear-confirmation");
-                            msg.send(pp);
-                        }
-                    });
-                    return;
-                } else {
-                    iter.remove();
-                }
-            }
-            plotsToDelete.clear();
-        }
-    }
-
-
-    public boolean cancelTask() {
-        if (this.running != 2) {
-            return false;
-        }
-        this.running = 1;
-        return true;
-    }
-
-    public boolean runAutomatedTask() {
-        return runTask(new RunnableVal3<Plot, Runnable, Boolean>() {
-            @Override public void run(Plot plot, Runnable runnable, Boolean confirm) {
-                if (confirm) {
-                    if (plotsToDelete == null) {
-                        plotsToDelete = new HashSet<>();
-                    }
-                    plotsToDelete.add(plot);
-                    runnable.run();
-                } else {
-                    deleteWithMessage(plot, runnable);
-                }
-            }
-        });
-    }
-
-    public Collection<ExpiryTask> isExpired(ArrayDeque<ExpiryTask> applicable, Plot plot) {
-        // Filter out invalid worlds
-        for (int i = 0; i < applicable.size(); i++) {
-            ExpiryTask et = applicable.poll();
-            if (et.applies(plot.getArea())) {
-                applicable.add(et);
-            }
-        }
-        if (applicable.isEmpty()) {
-            return new ArrayList<>();
-        }
-        boolean shouldCheckAccountAge = false;
-
-        long diff = getAge(plot);
-        if (diff == 0) {
-            return new ArrayList<>();
-        }
-        // Filter out non old plots
-        for (int i = 0; i < applicable.size(); i++) {
-            ExpiryTask et = applicable.poll();
-            if (et.applies(diff)) {
-                applicable.add(et);
-                shouldCheckAccountAge |= et.getSettings().SKIP_ACCOUNT_AGE_DAYS != -1;
-            }
-        }
-        if (applicable.isEmpty()) {
-            return new ArrayList<>();
-        }
-        // Check account age
-        if (shouldCheckAccountAge) {
-            long accountAge = getAge(plot);
-            for (int i = 0; i < applicable.size(); i++) {
-                ExpiryTask et = applicable.poll();
-                if (et.appliesAccountAge(accountAge)) {
-                    applicable.add(et);
-                }
-            }
-            if (applicable.isEmpty()) {
-                return new ArrayList<>();
-            }
-        }
-
-        // Run applicable non confirming tasks
-        for (int i = 0; i < applicable.size(); i++) {
-            ExpiryTask expiryTask = applicable.poll();
-            if (!expiryTask.needsAnalysis() || plot.getArea().TYPE != 0) {
-                if (!expiryTask.requiresConfirmation()) {
-                    return Collections.singletonList(expiryTask);
-                }
-            }
-            applicable.add(expiryTask);
-        }
-        // Run applicable confirming tasks
-        for (int i = 0; i < applicable.size(); i++) {
-            ExpiryTask expiryTask = applicable.poll();
-            if (!expiryTask.needsAnalysis() || plot.getArea().TYPE != 0) {
-                return Collections.singletonList(expiryTask);
-            }
-            applicable.add(expiryTask);
-        }
-        return applicable;
-    }
-
-    public ArrayDeque<ExpiryTask> getTasks(PlotArea area) {
-        ArrayDeque<ExpiryTask> queue = new ArrayDeque<>(tasks);
-        Iterator<ExpiryTask> iter = queue.iterator();
-        while (iter.hasNext()) {
-            if (!iter.next().applies(area)) {
-                iter.remove();
-            }
-        }
-        return queue;
-    }
-
-    public void passesComplexity(PlotAnalysis analysis, Collection<ExpiryTask> applicable,
-        RunnableVal<Boolean> success, Runnable failure) {
-        if (analysis != null) {
-            // Run non confirming tasks
-            for (ExpiryTask et : applicable) {
-                if (!et.requiresConfirmation() && et.applies(analysis)) {
-                    success.run(false);
-                    return;
-                }
-            }
-            for (ExpiryTask et : applicable) {
-                if (et.applies(analysis)) {
-                    success.run(true);
-                    return;
-                }
-            }
-            failure.run();
-        }
-    }
-
-    public boolean runTask(final RunnableVal3<Plot, Runnable, Boolean> expiredTask) {
-        if (this.running != 0) {
-            return false;
-        }
-        this.running = 2;
-        final ConcurrentLinkedDeque<Plot> plots =
-            new ConcurrentLinkedDeque<Plot>(PlotSquared.get().getPlots());
-        TaskManager.runTaskAsync(new Runnable() {
-            @Override public void run() {
-                final Runnable task = this;
-                if (ExpireManager.this.running != 2) {
-                    ExpireManager.this.running = 0;
-                    return;
-                }
-                long start = System.currentTimeMillis();
-                while (!plots.isEmpty()) {
-                    if (ExpireManager.this.running != 2) {
-                        ExpireManager.this.running = 0;
-                        return;
-                    }
-                    Plot plot = plots.poll();
-                    PlotArea area = plot.getArea();
-                    final Plot newPlot = area.getPlot(plot.getId());
-                    final ArrayDeque<ExpiryTask> applicable = new ArrayDeque<>(tasks);
-                    final Collection<ExpiryTask> expired = isExpired(applicable, newPlot);
-                    if (expired.isEmpty()) {
-                        continue;
-                    }
-                    for (ExpiryTask expiryTask : expired) {
-                        if (!expiryTask.needsAnalysis()) {
-                            expiredTask.run(newPlot, new Runnable() {
-                                @Override public void run() {
-                                    TaskManager.IMP.taskLaterAsync(task, 1);
-                                }
-                            }, expiryTask.requiresConfirmation());
-                            return;
-                        }
-                    }
-                    final RunnableVal<PlotAnalysis> handleAnalysis =
-                        new RunnableVal<PlotAnalysis>() {
-                            @Override public void run(final PlotAnalysis changed) {
-                                passesComplexity(changed, expired, new RunnableVal<Boolean>() {
-                                    @Override public void run(Boolean confirmation) {
-                                        expiredTask.run(newPlot, new Runnable() {
-                                            @Override public void run() {
-                                                TaskManager.IMP.taskLaterAsync(task, 1);
-                                            }
-                                        }, confirmation);
-                                    }
-                                }, new Runnable() {
-                                    @Override public void run() {
-                                        FlagManager
-                                            .addPlotFlag(newPlot, Flags.ANALYSIS, changed.asList());
-                                        TaskManager.runTaskLaterAsync(task, 20);
-                                    }
-                                });
-                            }
-                        };
-                    final Runnable doAnalysis = new Runnable() {
-                        @Override public void run() {
-                            HybridUtils.manager.analyzePlot(newPlot, handleAnalysis);
-                        }
-                    };
-
-                    PlotAnalysis analysis = newPlot.getComplexity(null);
-                    if (analysis != null) {
-                        passesComplexity(analysis, expired, new RunnableVal<Boolean>() {
-                            @Override public void run(Boolean value) {
-                                doAnalysis.run();
-                            }
-                        }, new Runnable() {
-                            @Override public void run() {
-                                TaskManager.IMP.taskLaterAsync(task, 1);
-                            }
-                        });
-                    } else {
-                        doAnalysis.run();
-                    }
-                    return;
-                }
-                if (plots.isEmpty()) {
-                    ExpireManager.this.running = 3;
-                    TaskManager.runTaskLater(new Runnable() {
-                        @Override public void run() {
-                            if (ExpireManager.this.running == 3) {
-                                ExpireManager.this.running = 2;
-                                runTask(expiredTask);
-                            }
-                        }
-                    }, 86400000);
-                } else {
-                    TaskManager.runTaskLaterAsync(task, 20 * 10);
-                }
-            }
-        });
-        return true;
-    }
-
-    public void storeDate(UUID uuid, long time) {
-        Long existing = this.dates_cache.put(uuid, time);
-        if (existing != null) {
-            long diff = time - existing;
-            if (diff > 0) {
-                Long account_age = this.account_age_cache.get(uuid);
-                if (account_age != null)
-                    this.account_age_cache.put(uuid, account_age + diff);
-            }
-        }
-    }
-
-    public void storeAccountAge(UUID uuid, long time) {
-        this.account_age_cache.put(uuid, time);
-    }
-
-    public HashSet<Plot> getPendingExpired() {
-        return plotsToDelete == null ? new HashSet<Plot>() : plotsToDelete;
-    }
-
-    public void deleteWithMessage(Plot plot, Runnable whenDone) {
-        if (plot.isMerged()) {
-            plot.unlinkPlot(true, false);
-        }
-        for (UUID helper : plot.getTrusted()) {
-            PlotPlayer player = UUIDHandler.getPlayer(helper);
-            if (player != null) {
-                MainUtil.sendMessage(player, C.PLOT_REMOVED_USER, plot.toString());
-            }
-        }
-        for (UUID helper : plot.getMembers()) {
-            PlotPlayer player = UUIDHandler.getPlayer(helper);
-            if (player != null) {
-                MainUtil.sendMessage(player, C.PLOT_REMOVED_USER, plot.toString());
-            }
-        }
-        Set<Plot> plots = plot.getConnectedPlots();
-        plot.deletePlot(whenDone);
-        PlotAnalysis changed = plot.getComplexity(null);
-        int changes = changed == null ? 0 : changed.changes_sd;
-        int modified = changed == null ? 0 : changed.changes;
-        PlotSquared.debug(
-            "$2[&5Expire&dManager$2] &cDeleted expired plot: " + plot + " User:" + plot.owner
-                + " Delta:" + changes + "/" + modified + " Connected: " + StringMan
-                .getString(plots));
-        PlotSquared.debug("$4 - Area: " + plot.getArea());
-        if (plot.hasOwner()) {
-            PlotSquared.debug("$4 - Owner: " + UUIDHandler.getName(plot.owner));
+    if (plotsToDelete != null && !plotsToDelete.isEmpty() && pp
+        .hasPermission("plots.admin.command.autoclear")) {
+      final int num = plotsToDelete.size();
+      while (!plotsToDelete.isEmpty()) {
+        Iterator<Plot> iter = plotsToDelete.iterator();
+        final Plot current = iter.next();
+        if (!isExpired(new ArrayDeque<>(tasks), current).isEmpty()) {
+          TaskManager.runTask(() -> {
+            pp.setMeta("ignoreExpireTask", true);
+            pp.teleport(current.getCenter());
+            pp.deleteMeta("ignoreExpireTask");
+            PlotMessage msg = new PlotMessage().text(
+                num + " " + (num > 1 ? "plots are" : "plot is") + " expired: ")
+                .color("$1").text(current.toString()).color("$2")
+                .suggest("/plot list expired").tooltip("/plot list expired")
+                //.text("\n - ").color("$3").text("Delete all (/plot delete expired)").color("$2").command("/plot delete expired")
+                .text("\n - ").color("$3").text("Delete this (/plot delete)")
+                .color("$2").suggest("/plot delete").tooltip("/plot delete")
+                .text("\n - ").color("$3").text("Remind later (/plot set keep 1d)")
+                .color("$2").suggest("/plot set keep 1d")
+                .tooltip("/plot set keep 1d").text("\n - ").color("$3")
+                .text("Keep this (/plot set keep true)").color("$2")
+                .suggest("/plot set keep true").tooltip("/plot set keep true")
+                .text("\n - ").color("$3").text("Don't show me this").color("$2")
+                .suggest("/plot toggle clear-confirmation")
+                .tooltip("/plot toggle clear-confirmation");
+            msg.send(pp);
+          });
+          return;
         } else {
-            PlotSquared.debug("$4 - Owner: Unowned");
+          iter.remove();
         }
+      }
+      plotsToDelete.clear();
+    }
+  }
+
+
+  public boolean cancelTask() {
+    if (this.running != 2) {
+      return false;
+    }
+    this.running = 1;
+    return true;
+  }
+
+  public boolean runAutomatedTask() {
+    return runTask(new RunnableVal3<Plot, Runnable, Boolean>() {
+      @Override
+      public void run(Plot plot, Runnable runnable, Boolean confirm) {
+        if (confirm) {
+          if (plotsToDelete == null) {
+            plotsToDelete = new HashSet<>();
+          }
+          plotsToDelete.add(plot);
+          runnable.run();
+        } else {
+          deleteWithMessage(plot, runnable);
+        }
+      }
+    });
+  }
+
+  public Collection<ExpiryTask> isExpired(ArrayDeque<ExpiryTask> applicable, Plot plot) {
+    // Filter out invalid worlds
+    for (int i = 0; i < applicable.size(); i++) {
+      ExpiryTask et = applicable.poll();
+      if (et.applies(plot.getArea())) {
+        applicable.add(et);
+      }
+    }
+    if (applicable.isEmpty()) {
+      return new ArrayList<>();
+    }
+    boolean shouldCheckAccountAge = false;
+
+    long diff = getAge(plot);
+    if (diff == 0) {
+      return new ArrayList<>();
+    }
+    // Filter out non old plots
+    for (int i = 0; i < applicable.size(); i++) {
+      ExpiryTask et = applicable.poll();
+      if (et.applies(diff)) {
+        applicable.add(et);
+        shouldCheckAccountAge |= et.getSettings().SKIP_ACCOUNT_AGE_DAYS != -1;
+      }
+    }
+    if (applicable.isEmpty()) {
+      return new ArrayList<>();
+    }
+    // Check account age
+    if (shouldCheckAccountAge) {
+      long accountAge = getAge(plot);
+      for (int i = 0; i < applicable.size(); i++) {
+        ExpiryTask et = applicable.poll();
+        if (et.appliesAccountAge(accountAge)) {
+          applicable.add(et);
+        }
+      }
+      if (applicable.isEmpty()) {
+        return new ArrayList<>();
+      }
     }
 
-    public long getAge(UUID uuid) {
-        if (UUIDHandler.getPlayer(uuid) != null) {
-            return 0;
+    // Run applicable non confirming tasks
+    for (int i = 0; i < applicable.size(); i++) {
+      ExpiryTask expiryTask = applicable.poll();
+      if (!expiryTask.needsAnalysis() || plot.getArea().TYPE != 0) {
+        if (!expiryTask.requiresConfirmation()) {
+          return Collections.singletonList(expiryTask);
         }
-        String name = UUIDHandler.getName(uuid);
-        if (name != null) {
-            Long last = this.dates_cache.get(uuid);
-            if (last == null) {
-                OfflinePlotPlayer opp;
-                if (Settings.UUID.NATIVE_UUID_PROVIDER) {
-                    opp = UUIDHandler.getUUIDWrapper().getOfflinePlayer(uuid);
-                } else {
-                    opp = UUIDHandler.getUUIDWrapper().getOfflinePlayer(name);
-                }
-                if (opp != null && (last = opp.getLastPlayed()) != 0) {
-                    this.dates_cache.put(uuid, last);
-                } else {
-                    return 0;
-                }
-            }
-            if (last == 0) {
-                return 0;
-            }
-            return System.currentTimeMillis() - last;
+      }
+      applicable.add(expiryTask);
+    }
+    // Run applicable confirming tasks
+    for (int i = 0; i < applicable.size(); i++) {
+      ExpiryTask expiryTask = applicable.poll();
+      if (!expiryTask.needsAnalysis() || plot.getArea().TYPE != 0) {
+        return Collections.singletonList(expiryTask);
+      }
+      applicable.add(expiryTask);
+    }
+    return applicable;
+  }
+
+  public ArrayDeque<ExpiryTask> getTasks(PlotArea area) {
+    ArrayDeque<ExpiryTask> queue = new ArrayDeque<>(tasks);
+    queue.removeIf(expiryTask -> !expiryTask.applies(area));
+    return queue;
+  }
+
+  public void passesComplexity(PlotAnalysis analysis, Collection<ExpiryTask> applicable,
+      RunnableVal<Boolean> success, Runnable failure) {
+    if (analysis != null) {
+      // Run non confirming tasks
+      for (ExpiryTask et : applicable) {
+        if (!et.requiresConfirmation() && et.applies(analysis)) {
+          success.run(false);
+          return;
         }
+      }
+      for (ExpiryTask et : applicable) {
+        if (et.applies(analysis)) {
+          success.run(true);
+          return;
+        }
+      }
+      failure.run();
+    }
+  }
+
+  public boolean runTask(final RunnableVal3<Plot, Runnable, Boolean> expiredTask) {
+    if (this.running != 0) {
+      return false;
+    }
+    this.running = 2;
+    final ConcurrentLinkedDeque<Plot> plots =
+        new ConcurrentLinkedDeque<>(PlotSquared.get().getPlots());
+    TaskManager.runTaskAsync(new Runnable() {
+      @Override
+      public void run() {
+        final Runnable task = this;
+        if (ExpireManager.this.running != 2) {
+          ExpireManager.this.running = 0;
+          return;
+        }
+        long start = System.currentTimeMillis();
+        while (!plots.isEmpty()) {
+          if (ExpireManager.this.running != 2) {
+            ExpireManager.this.running = 0;
+            return;
+          }
+          Plot plot = plots.poll();
+          PlotArea area = plot.getArea();
+          final Plot newPlot = area.getPlot(plot.getId());
+          final ArrayDeque<ExpiryTask> applicable = new ArrayDeque<>(tasks);
+          final Collection<ExpiryTask> expired = isExpired(applicable, newPlot);
+          if (expired.isEmpty()) {
+            continue;
+          }
+          for (ExpiryTask expiryTask : expired) {
+            if (!expiryTask.needsAnalysis()) {
+              expiredTask.run(newPlot, () -> TaskManager.IMP.taskLaterAsync(task, 1),
+                  expiryTask.requiresConfirmation());
+              return;
+            }
+          }
+          final RunnableVal<PlotAnalysis> handleAnalysis =
+              new RunnableVal<PlotAnalysis>() {
+                @Override
+                public void run(final PlotAnalysis changed) {
+                  passesComplexity(changed, expired, new RunnableVal<Boolean>() {
+                    @Override
+                    public void run(Boolean confirmation) {
+                      expiredTask.run(newPlot,
+                          () -> TaskManager.IMP.taskLaterAsync(task, 1), confirmation);
+                    }
+                  }, () -> {
+                    FlagManager
+                        .addPlotFlag(newPlot, Flags.ANALYSIS, changed.asList());
+                    TaskManager.runTaskLaterAsync(task, 20);
+                  });
+                }
+              };
+          final Runnable doAnalysis = () -> HybridUtils.manager
+              .analyzePlot(newPlot, handleAnalysis);
+
+          PlotAnalysis analysis = newPlot.getComplexity(null);
+          if (analysis != null) {
+            passesComplexity(analysis, expired, new RunnableVal<Boolean>() {
+              @Override
+              public void run(Boolean value) {
+                doAnalysis.run();
+              }
+            }, () -> TaskManager.IMP.taskLaterAsync(task, 1));
+          } else {
+            doAnalysis.run();
+          }
+          return;
+        }
+        if (plots.isEmpty()) {
+          ExpireManager.this.running = 3;
+          TaskManager.runTaskLater(() -> {
+            if (ExpireManager.this.running == 3) {
+              ExpireManager.this.running = 2;
+              runTask(expiredTask);
+            }
+          }, 86400000);
+        } else {
+          TaskManager.runTaskLaterAsync(task, 20 * 10);
+        }
+      }
+    });
+    return true;
+  }
+
+  public void storeDate(UUID uuid, long time) {
+    Long existing = this.dates_cache.put(uuid, time);
+    if (existing != null) {
+      long diff = time - existing;
+      if (diff > 0) {
+        Long account_age = this.account_age_cache.get(uuid);
+        if (account_age != null) {
+          this.account_age_cache.put(uuid, account_age + diff);
+        }
+      }
+    }
+  }
+
+  public void storeAccountAge(UUID uuid, long time) {
+    this.account_age_cache.put(uuid, time);
+  }
+
+  public HashSet<Plot> getPendingExpired() {
+    return plotsToDelete == null ? new HashSet<>() : plotsToDelete;
+  }
+
+  public void deleteWithMessage(Plot plot, Runnable whenDone) {
+    if (plot.isMerged()) {
+      plot.unlinkPlot(true, false);
+    }
+    for (UUID helper : plot.getTrusted()) {
+      PlotPlayer player = UUIDHandler.getPlayer(helper);
+      if (player != null) {
+        MainUtil.sendMessage(player, C.PLOT_REMOVED_USER, plot.toString());
+      }
+    }
+    for (UUID helper : plot.getMembers()) {
+      PlotPlayer player = UUIDHandler.getPlayer(helper);
+      if (player != null) {
+        MainUtil.sendMessage(player, C.PLOT_REMOVED_USER, plot.toString());
+      }
+    }
+    Set<Plot> plots = plot.getConnectedPlots();
+    plot.deletePlot(whenDone);
+    PlotAnalysis changed = plot.getComplexity(null);
+    int changes = changed == null ? 0 : changed.changes_sd;
+    int modified = changed == null ? 0 : changed.changes;
+    PlotSquared.debug(
+        "$2[&5Expire&dManager$2] &cDeleted expired plot: " + plot + " User:" + plot.owner
+            + " Delta:" + changes + "/" + modified + " Connected: " + StringMan
+            .getString(plots));
+    PlotSquared.debug("$4 - Area: " + plot.getArea());
+    if (plot.hasOwner()) {
+      PlotSquared.debug("$4 - Owner: " + UUIDHandler.getName(plot.owner));
+    } else {
+      PlotSquared.debug("$4 - Owner: Unowned");
+    }
+  }
+
+  public long getAge(UUID uuid) {
+    if (UUIDHandler.getPlayer(uuid) != null) {
+      return 0;
+    }
+    String name = UUIDHandler.getName(uuid);
+    if (name != null) {
+      Long last = this.dates_cache.get(uuid);
+      if (last == null) {
+        OfflinePlotPlayer opp;
+        if (Settings.UUID.NATIVE_UUID_PROVIDER) {
+          opp = UUIDHandler.getUUIDWrapper().getOfflinePlayer(uuid);
+        } else {
+          opp = UUIDHandler.getUUIDWrapper().getOfflinePlayer(name);
+        }
+        if (opp != null && (last = opp.getLastPlayed()) != 0) {
+          this.dates_cache.put(uuid, last);
+        } else {
+          return 0;
+        }
+      }
+      if (last == 0) {
         return 0;
+      }
+      return System.currentTimeMillis() - last;
     }
+    return 0;
+  }
 
-    public long getAccountAge(Plot plot) {
-        if (!plot.hasOwner() || Objects.equals(DBFunc.EVERYONE, plot.owner)
-            || UUIDHandler.getPlayer(plot.owner) != null || plot.getRunning() > 0) {
-            return Long.MAX_VALUE;
-        }
-        long max = 0;
-        for (UUID owner : plot.getOwners()) {
-            long age = getAccountAge(owner);
-            max = Math.max(age, max);
-        }
-        return max;
+  public long getAccountAge(Plot plot) {
+    if (!plot.hasOwner() || Objects.equals(DBFunc.EVERYONE, plot.owner)
+        || UUIDHandler.getPlayer(plot.owner) != null || plot.getRunning() > 0) {
+      return Long.MAX_VALUE;
     }
+    long max = 0;
+    for (UUID owner : plot.getOwners()) {
+      long age = getAccountAge(owner);
+      max = Math.max(age, max);
+    }
+    return max;
+  }
 
-    public long getAge(Plot plot) {
-        if (!plot.hasOwner() || Objects.equals(DBFunc.EVERYONE, plot.owner)
-            || UUIDHandler.getPlayer(plot.owner) != null || plot.getRunning() > 0) {
-            return 0;
-        }
-        Optional<?> keep = plot.getFlag(Flags.KEEP);
-        if (keep.isPresent()) {
-            Object value = keep.get();
-            if (value instanceof Boolean) {
-                if (Boolean.TRUE.equals(value)) {
-                    return 0;
-                }
-            } else if (value instanceof Long) {
-                if ((Long) value > System.currentTimeMillis()) {
-                    return 0;
-                }
-            } else { // Invalid?
-                return 0;
-            }
-        }
-        long min = Long.MAX_VALUE;
-        for (UUID owner : plot.getOwners()) {
-            long age = getAge(owner);
-            if (age < min) {
-                min = age;
-            }
-        }
-        return min;
+  public long getAge(Plot plot) {
+    if (!plot.hasOwner() || Objects.equals(DBFunc.EVERYONE, plot.owner)
+        || UUIDHandler.getPlayer(plot.owner) != null || plot.getRunning() > 0) {
+      return 0;
     }
+    Optional<?> keep = plot.getFlag(Flags.KEEP);
+    if (keep.isPresent()) {
+      Object value = keep.get();
+      if (value instanceof Boolean) {
+        if (Boolean.TRUE.equals(value)) {
+          return 0;
+        }
+      } else if (value instanceof Long) {
+        if ((Long) value > System.currentTimeMillis()) {
+          return 0;
+        }
+      } else { // Invalid?
+        return 0;
+      }
+    }
+    long min = Long.MAX_VALUE;
+    for (UUID owner : plot.getOwners()) {
+      long age = getAge(owner);
+      if (age < min) {
+        min = age;
+      }
+    }
+    return min;
+  }
 }

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/expiry/ExpiryTask.java

@@ -5,7 +5,6 @@ import com.github.intellectualsites.plotsquared.plot.config.Settings;
 import com.github.intellectualsites.plotsquared.plot.object.Plot;
 import com.github.intellectualsites.plotsquared.plot.object.PlotArea;
 import com.github.intellectualsites.plotsquared.plot.object.PlotFilter;
-
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/util/expiry/PlotAnalysis.java

@@ -118,16 +118,14 @@ public class PlotAnalysis {
 
                 final AtomicInteger mi = new AtomicInteger(0);
 
-                Thread ratingAnalysis = new Thread(new Runnable() {
-                    @Override public void run() {
-                        for (; mi.intValue() < plots.size(); mi.incrementAndGet()) {
-                            int i = mi.intValue();
-                            Plot plot = plots.get(i);
-                            ratings[i] = (int) (
-                                (plot.getAverageRating() + plot.getSettings().getRatings().size())
-                                    * 100);
-                            PlotSquared.debug(" | " + plot + " (rating) " + ratings[i]);
-                        }
+                Thread ratingAnalysis = new Thread(() -> {
+                    for (; mi.intValue() < plots.size(); mi.incrementAndGet()) {
+                        int i = mi.intValue();
+                        Plot plot = plots.get(i);
+                        ratings[i] = (int) (
+                            (plot.getAverageRating() + plot.getSettings().getRatings().size())
+                                * 100);
+                        PlotSquared.debug(" | " + plot + " (rating) " + ratings[i]);
                     }
                 });
                 ratingAnalysis.start();
@@ -424,9 +422,6 @@ public class PlotAnalysis {
     /**
      * A simple array squaring algorithm.
      * - Used for calculating the variance
-     *
-     * @param array
-     * @return
      */
     public static int[] square(int[] array) {
         array = array.clone();
@@ -439,8 +434,6 @@ public class PlotAnalysis {
     /**
      * An optimized lossy standard deviation algorithm.
      *
-     * @param ranks
-     * @return
      */
     public static int[] getSD(int[]... ranks) {
         if (ranks.length == 0) {
@@ -468,19 +461,13 @@ public class PlotAnalysis {
      * - Input is an array of int with a max size of 102400<br>
      * - A reduced sample space allows for sorting (and ranking in this case) in linear time
      *
-     * @param input
-     * @param input
-     * @return
      */
     public static int[] rank(int[] input) {
         return rank(input, 102400);
     }
 
     /**
-     * An optimized algorithm for ranking a very specific set of inputs
-     *
-     * @param input
-     * @return
+     * An optimized algorithm for ranking a very specific set of inputs.
      */
     public static int[] rank(int[] input, int size) {
         int[] cache = new int[size];

Core/src/main/java/com/github/intellectualsites/plotsquared/plot/uuid/UUIDWrapper.java

@@ -5,17 +5,17 @@ import com.github.intellectualsites.plotsquared.plot.object.PlotPlayer;
 
 import java.util.UUID;
 
-public abstract class UUIDWrapper {
+public interface UUIDWrapper {
 
-    public abstract UUID getUUID(PlotPlayer player);
+    UUID getUUID(PlotPlayer player);
 
-    public abstract UUID getUUID(OfflinePlotPlayer player);
+    UUID getUUID(OfflinePlotPlayer player);
 
-    public abstract UUID getUUID(String name);
+    UUID getUUID(String name);
 
-    public abstract OfflinePlotPlayer getOfflinePlayer(UUID uuid);
+    OfflinePlotPlayer getOfflinePlayer(UUID uuid);
 
-    public abstract OfflinePlotPlayer getOfflinePlayer(String name);
+    OfflinePlotPlayer getOfflinePlayer(String name);
 
-    public abstract OfflinePlotPlayer[] getOfflinePlayers();
+    OfflinePlotPlayer[] getOfflinePlayers();
 }

Core/src/test/java/com/github/intellectualsites/plotsquared/plot/database/AbstractDBTest.java

@@ -84,10 +84,7 @@ public class AbstractDBTest implements AbstractDB {
     @Override public void setFlags(Plot plot, HashMap<Flag<?>, Object> flags) {
     }
 
-    @Override public void setFlags(PlotCluster cluster, HashMap<Flag<?>, Object> flags) {
-    }
-
-    @Override public void setClusterName(PlotCluster cluster, String name) {
+  @Override public void setClusterName(PlotCluster cluster, String name) {
     }
 
     @Override public void setAlias(Plot plot, String alias) {

Core/src/test/java/com/github/intellectualsites/plotsquared/plot/util/EventUtilTest.java

@@ -40,11 +40,7 @@ public class EventUtilTest extends EventUtil {
         return true;
     }
 
-    @Override public boolean callFlagRemove(Flag<?> flag, Object value, PlotCluster cluster) {
-        return true;
-    }
-
-    @Override public boolean callMerge(Plot plot, int dir, int max){
+  @Override public boolean callMerge(Plot plot, int dir, int max){
         return false;
     }