Bug Fix and Cleanup

Bukkit/src/main/java/com/intellectualcrafters/plot/api/PlotAPI.java

@@ -54,8 +54,7 @@ public class PlotAPI {
      * @deprecated Not needed
      */
     @Deprecated
-    public PlotAPI(JavaPlugin plugin) {
-    }
+    public PlotAPI(JavaPlugin plugin) {}
 
     /**
      * Get all plots.

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

@@ -141,9 +141,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
             }
             this.getServer().getConsoleSender().sendMessage(message);
             return;
-        } catch (Throwable ignored) {
-            //ignored
-        }
+        } catch (Throwable ignored) {}
         System.out.println(ConsoleColors.fromString(message));
     }
 
@@ -401,14 +399,14 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         try {
             new SendChunk();
             MainUtil.canSendChunk = true;
-        } catch (Throwable e) {
+        } catch (ClassNotFoundException | NoSuchFieldException | NoSuchMethodException e) {
             e.printStackTrace();
             MainUtil.canSendChunk = false;
         }
         if (PS.get().checkVersion(getServerVersion(), 1, 9, 0)) {
             try {
                 return new FastQueue_1_9();
-            } catch (Throwable e) {
+            } catch (ClassNotFoundException | NoSuchFieldException | NoSuchMethodException e) {
                 e.printStackTrace();
                 return new SlowQueue();
             }
@@ -416,11 +414,11 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         if (PS.get().checkVersion(getServerVersion(), 1, 8, 0)) {
             try {
                 return new FastQueue_1_8_3();
-            } catch (Throwable e) {
+            } catch (NoSuchMethodException | ClassNotFoundException | NoSuchFieldException e) {
                 e.printStackTrace();
                 try {
                     return new FastQueue_1_8();
-                } catch (Throwable e2) {
+                } catch (NoSuchMethodException | NoSuchFieldException | ClassNotFoundException e2) {
                     e2.printStackTrace();
                     return new SlowQueue();
                 }
@@ -428,7 +426,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
         }
         try {
             return new FastQueue_1_7();
-        } catch (Throwable e) {
+        } catch (ClassNotFoundException | NoSuchFieldException | NoSuchMethodException e) {
             e.printStackTrace();
             return new SlowQueue();
         }
@@ -657,7 +655,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
     public List<String> getPluginIds() {
         ArrayList<String> names = new ArrayList<>();
         for (Plugin plugin : Bukkit.getPluginManager().getPlugins()) {
-            names.add(plugin.getName() + ";" + plugin.getDescription().getVersion() + ":" + plugin.isEnabled());
+            names.add(plugin.getName() + ';' + plugin.getDescription().getVersion() + ':' + plugin.isEnabled());
         }
         return names;
     }

Bukkit/src/main/java/com/plotsquared/bukkit/commands/DebugUUID.java

@@ -285,7 +285,7 @@ public class DebugUUID extends SubCommand {
                 }
                 try {
                     PS.get().config.save(PS.get().configFile);
-                } catch (IOException e) {
+                } catch (IOException ignored) {
                     MainUtil.sendMessage(player, "Could not save configuration. It will need to be manual set!");
                 }
 

Bukkit/src/main/java/com/plotsquared/bukkit/database/plotme/ClassicPlotMeConnector.java

@@ -42,9 +42,8 @@ public class ClassicPlotMeConnector extends APlotMeConnector {
             } else {
                 return new SQLite(dataFolder + File.separator + "plots.db").openConnection();
             }
-        } catch (SQLException | ClassNotFoundException ignored) {
-            //ignored
-            ignored.printStackTrace();
+        } catch (SQLException | ClassNotFoundException e) {
+            e.printStackTrace();
         }
         return null;
     }
@@ -229,9 +228,7 @@ public class ClassicPlotMeConnector extends APlotMeConnector {
             resultSet.close();
             statement.close();
 
-        } catch (SQLException ignored) {
-            //ignored
-        }
+        } catch (SQLException ignored) {}
         return plots;
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/database/plotme/LikePlotMeConverter.java

@@ -200,9 +200,7 @@ public class LikePlotMeConverter {
                         PS.get().config.set("worlds." + actualWorldName + ".wall.height", height);
                         PS.get().config.save(PS.get().configFile);
                     }
-                } catch (IOException ignored) {
-                    //ignored
-                }
+                } catch (IOException ignored) {}
             }
             for (Entry<String, HashMap<PlotId, Plot>> entry : plots.entrySet()) {
                 String world = entry.getKey();

Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java

@@ -233,7 +233,7 @@ public class BukkitPlotGenerator extends ChunkGenerator implements GeneratorWrap
         } catch (Exception e) {
             e.printStackTrace();
         }
-        ArrayList<BlockPopulator> toAdd = new ArrayList<BlockPopulator>();
+        ArrayList<BlockPopulator> toAdd = new ArrayList<>();
         List<BlockPopulator> existing = world.getPopulators();
         for (BlockPopulator populator : this.populators) {
             if (!existing.contains(populator)) {

Bukkit/src/main/java/com/plotsquared/bukkit/listeners/worldedit/WEListener.java

@@ -31,22 +31,21 @@ import java.util.Set;
 
 public class WEListener implements Listener {
 
-    public final HashSet<String> rad1 = new HashSet<>(
+    public final Set<String> other = new HashSet<>(Arrays.asList("undo", "redo"));
+    private final Set<String> rad1 = new HashSet<>(
             Arrays.asList("forestgen", "pumpkins", "drain", "fixwater", "fixlava", "replacenear", "snow", "thaw", "ex", "butcher", "size"));
-    public final HashSet<String> rad2 = new HashSet<>(Arrays.asList("fill", "fillr", "removenear", "remove"));
-    public final HashSet<String> rad2_1 = new HashSet<>(Arrays.asList("hcyl", "cyl"));
-    public final HashSet<String> rad2_2 = new HashSet<>(Arrays.asList("sphere", "pyramid"));
-    public final Set<String> rad2_3 = Collections.singleton("brush smooth");
-    public final Set<String> rad3_1 = Collections.singleton("brush gravity");
-    public final HashSet<String> rad3_2 = new HashSet<>(Arrays.asList("brush sphere", "brush cylinder"));
-
-    public final HashSet<String> region = new HashSet<>(
+    private final Set<String> rad2 = new HashSet<>(Arrays.asList("fill", "fillr", "removenear", "remove"));
+    private final Set<String> rad2_1 = new HashSet<>(Arrays.asList("hcyl", "cyl"));
+    private final Set<String> rad2_2 = new HashSet<>(Arrays.asList("sphere", "pyramid"));
+    private final Set<String> rad2_3 = Collections.singleton("brush smooth");
+    private final Set<String> rad3_1 = Collections.singleton("brush gravity");
+    private final Set<String> rad3_2 = new HashSet<>(Arrays.asList("brush sphere", "brush cylinder"));
+    private final Set<String> region = new HashSet<>(
             Arrays.asList("move", "set", "replace", "overlay", "walls", "outline", "deform", "hollow", "smooth", "naturalize", "paste", "count",
                     "distr",
                     "regen", "copy", "cut", "green", "setbiome"));
-    public final Set<String> regionExtend = Collections.singleton("stack");
-    public final Set<String> restricted = Collections.singleton("up");
-    public final HashSet<String> other = new HashSet<>(Arrays.asList("undo", "redo"));
+    private final Set<String> regionExtend = Collections.singleton("stack");
+    private final Set<String> restricted = Collections.singleton("up");
 
     public String reduceCmd(String cmd, boolean single) {
         if (cmd.startsWith("/worldedit:/")) {
@@ -75,14 +74,14 @@ public class WEListener implements Listener {
                 }
             }
             return max;
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             return 0;
         }
     }
 
     public boolean checkVolume(PlotPlayer player, long volume, long max, Cancellable e) {
         if (volume > max) {
-            MainUtil.sendMessage(player, C.WORLDEDIT_VOLUME.s().replaceAll("%current%", volume + "").replaceAll("%max%", max + ""));
+            MainUtil.sendMessage(player, C.WORLDEDIT_VOLUME.s().replaceAll("%current%", String.valueOf(volume)).replaceAll("%max%", String.valueOf(max)));
             e.setCancelled(true);
         }
         if (Permissions.hasPermission(player, "plots.worldedit.bypass")) {
@@ -181,7 +180,7 @@ public class WEListener implements Listener {
         boolean single = true;
         if (split.length >= 2) {
             String reduced = reduceCmd(split[0], single);
-            String reduced2 = reduceCmd(split[0] + " " + split[1], single);
+            String reduced2 = reduceCmd(split[0] + ' ' + split[1], single);
             if (this.rad1.contains(reduced)) {
                 if (delay(p, message, false)) {
                     e.setCancelled(true);
@@ -234,7 +233,8 @@ public class WEListener implements Listener {
                         int iterations = getInt(split[3]);
                         if (iterations > maxIterations) {
                             MainUtil.sendMessage(pp,
-                                    C.WORLDEDIT_ITERATIONS.s().replaceAll("%current%", iterations + "").replaceAll("%max%", maxIterations + ""));
+                                    C.WORLDEDIT_ITERATIONS.s().replaceAll("%current%", String.valueOf(iterations)).replaceAll("%max%",
+                                            String.valueOf(maxIterations)));
                             e.setCancelled(true);
                             if (Permissions.hasPermission(pp, "plots.worldedit.bypass")) {
                                 MainUtil.sendMessage(pp, C.WORLDEDIT_BYPASS);

Bukkit/src/main/java/com/plotsquared/bukkit/object/entity/EntityWrapper.java

@@ -465,8 +465,7 @@ public class EntityWrapper {
         if (this.base.passenger != null) {
             try {
                 entity.setPassenger(this.base.passenger.spawn(world, x_offset, z_offset));
-            } catch (Exception ignored) {
-            }
+            } catch (Exception ignored) {}
         }
         if (this.base.fall != 0) {
             entity.setFallDistance(this.base.fall);

Bukkit/src/main/java/com/plotsquared/bukkit/titles/HackTitleManager.java

@@ -143,8 +143,7 @@ public class HackTitleManager extends TitleManager {
     private Class<?> getClass(String namespace) {
         try {
             return Class.forName(namespace);
-        } catch (ClassNotFoundException ignored) {
-        }
+        } catch (ClassNotFoundException ignored) {}
         return null;
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitChunkManager.java

@@ -58,6 +58,7 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 
@@ -616,25 +617,25 @@ public class BukkitChunkManager extends ChunkManager {
 
     public static class ContentMap {
 
-        public final HashMap<BlockLoc, ItemStack[]> chestContents;
-        public final HashMap<BlockLoc, ItemStack[]> furnaceContents;
-        public final HashMap<BlockLoc, ItemStack[]> dispenserContents;
-        public final HashMap<BlockLoc, ItemStack[]> dropperContents;
-        public final HashMap<BlockLoc, ItemStack[]> brewingStandContents;
-        public final HashMap<BlockLoc, ItemStack[]> beaconContents;
-        public final HashMap<BlockLoc, ItemStack[]> hopperContents;
-        public final HashMap<BlockLoc, Short[]> furnaceTime;
-        public final HashMap<BlockLoc, Object[]> skullData;
-        public final HashMap<BlockLoc, Material> jukeboxDisc;
-        public final HashMap<BlockLoc, Short> brewTime;
-        public final HashMap<BlockLoc, EntityType> spawnerData;
-        public final HashMap<BlockLoc, String> cmdData;
-        public final HashMap<BlockLoc, String[]> signContents;
-        public final HashMap<BlockLoc, Note> noteBlockContents;
-        public final HashMap<BlockLoc, List<Pattern>> bannerPatterns;
-        public final HashMap<BlockLoc, DyeColor> bannerBase;
-        public final HashSet<EntityWrapper> entities;
-        public final HashMap<PlotLoc, PlotBlock[]> allBlocks;
+        public final Map<BlockLoc, ItemStack[]> chestContents;
+        public final Map<BlockLoc, ItemStack[]> furnaceContents;
+        public final Map<BlockLoc, ItemStack[]> dispenserContents;
+        public final Map<BlockLoc, ItemStack[]> dropperContents;
+        public final Map<BlockLoc, ItemStack[]> brewingStandContents;
+        public final Map<BlockLoc, ItemStack[]> beaconContents;
+        public final Map<BlockLoc, ItemStack[]> hopperContents;
+        public final Map<BlockLoc, Short[]> furnaceTime;
+        public final Map<BlockLoc, Object[]> skullData;
+        public final Map<BlockLoc, Material> jukeboxDisc;
+        public final Map<BlockLoc, Short> brewTime;
+        public final Map<BlockLoc, EntityType> spawnerData;
+        public final Map<BlockLoc, String> cmdData;
+        public final Map<BlockLoc, String[]> signContents;
+        public final Map<BlockLoc, Note> noteBlockContents;
+        public final Map<BlockLoc, List<Pattern>> bannerPatterns;
+        public final Map<BlockLoc, DyeColor> bannerBase;
+        public final Set<EntityWrapper> entities;
+        public final Map<PlotLoc, PlotBlock[]> allBlocks;
 
         public ContentMap() {
             this.chestContents = new HashMap<>();

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitHybridUtils.java

@@ -49,8 +49,7 @@ public class BukkitHybridUtils extends HybridUtils {
                 }
                 final BiomeGrid nullBiomeGrid = new BiomeGrid() {
                     @Override
-                    public void setBiome(int a, int b, Biome c) {
-                    }
+                    public void setBiome(int a, int b, Biome c) {}
 
                     @Override
                     public Biome getBiome(int a, int b) {

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitPlainChatManager.java

@@ -22,12 +22,10 @@ public class BukkitPlainChatManager extends ChatManager<List<StringBuilder>> {
     }
 
     @Override
-    public void tooltip(PlotMessage message, PlotMessage... tooltips) {
-    }
+    public void tooltip(PlotMessage message, PlotMessage... tooltips) {}
 
     @Override
-    public void command(PlotMessage message, String command) {
-    }
+    public void command(PlotMessage message, String command) {}
 
     @Override
     public void text(PlotMessage message, String text) {
@@ -44,7 +42,6 @@ public class BukkitPlainChatManager extends ChatManager<List<StringBuilder>> {
     }
 
     @Override
-    public void suggest(PlotMessage plotMessage, String command) {
-    }
+    public void suggest(PlotMessage plotMessage, String command) {}
 
 }

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitUtil.java

@@ -271,8 +271,7 @@ public class BukkitUtil extends WorldUtil {
         try {
             Material material = Material.valueOf(name.toUpperCase());
             return new StringComparison<PlotBlock>().new ComparisonResult(0, new PlotBlock((short) material.getId(), (byte) 0));
-        } catch (IllegalArgumentException ignored) {
-        }
+        } catch (IllegalArgumentException ignored) {}
         try {
             byte data;
             String[] split = name.split(":");
@@ -296,8 +295,7 @@ public class BukkitUtil extends WorldUtil {
             StringComparison<PlotBlock> outer = new StringComparison<>();
             return outer.new ComparisonResult(match, block);
 
-        } catch (NumberFormatException ignored) {
-        }
+        } catch (NumberFormatException ignored) {}
         return null;
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/util/Metrics.java

@@ -95,8 +95,7 @@ public class Metrics {
             if (gzos != null) {
                 try {
                     gzos.close();
-                } catch (IOException ignore) {
-                }
+                } catch (IOException ignore) {}
             }
         }
         return baos.toByteArray();
@@ -117,7 +116,7 @@ public class Metrics {
                 Double.parseDouble(value);
                 isValueNumeric = true;
             }
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             isValueNumeric = false;
         }
         if (json.charAt(json.length() - 1) != '{') {
@@ -446,7 +445,7 @@ public class Metrics {
         try {
             Class.forName("mineshafter.MineServer");
             return true;
-        } catch (ClassNotFoundException e) {
+        } catch (ClassNotFoundException ignored) {
             return false;
         }
     }
@@ -569,8 +568,7 @@ public class Metrics {
         /**
          * Called after the website graphs have been updated
          */
-        public void reset() {
-        }
+        public void reset() {}
 
         @Override
         public int hashCode() {

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

@@ -42,7 +42,7 @@ public class SendChunk {
     /**
      * Constructor
      */
-    public SendChunk() {
+    public SendChunk() throws ClassNotFoundException, NoSuchMethodException, NoSuchFieldException {
         RefClass classCraftPlayer = getRefClass("{cb}.entity.CraftPlayer");
         this.methodGetHandlePlayer = classCraftPlayer.getMethod("getHandle");
         RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");

Bukkit/src/main/java/com/plotsquared/bukkit/util/block/FastQueue_1_7.java

@@ -38,7 +38,7 @@ public class FastQueue_1_7 extends SlowQueue {
 
     private final HashMap<ChunkWrapper, Chunk> toUpdate = new HashMap<>();
 
-    public FastQueue_1_7() throws RuntimeException {
+    public FastQueue_1_7() throws NoSuchMethodException, ClassNotFoundException, NoSuchFieldException {
         this.methodGetHandle = this.classCraftWorld.getMethod("getHandle");
         this.methodGetChunkAt = this.classWorld.getMethod("getChunkAt", int.class, int.class);
         this.methodA = this.classChunk.getMethod("a", int.class, int.class, int.class, this.classBlock, int.class);

Bukkit/src/main/java/com/plotsquared/bukkit/util/block/FastQueue_1_8.java

@@ -41,7 +41,7 @@ public class FastQueue_1_8 extends SlowQueue {
     private final RefConstructor constructorBlockPosition;
     private final SendChunk sendChunk;
 
-    public FastQueue_1_8() throws RuntimeException {
+    public FastQueue_1_8() throws NoSuchMethodException, ClassNotFoundException, NoSuchFieldException {
         this.methodInitLighting = this.classChunk.getMethod("initLighting");
         this.constructorBlockPosition = this.classBlockPosition.getConstructor(int.class, int.class, int.class);
         this.methodGetByCombinedId = this.classBlock.getMethod("getByCombinedId", int.class);
@@ -56,7 +56,7 @@ public class FastQueue_1_8 extends SlowQueue {
                     return;
                 }
                 int count = 0;
-                ArrayList<Chunk> chunks = new ArrayList<Chunk>();
+                ArrayList<Chunk> chunks = new ArrayList<>();
                 Iterator<Entry<ChunkWrapper, Chunk>> i = FastQueue_1_8.this.toUpdate.entrySet().iterator();
                 while (i.hasNext() && count < 128) {
                     chunks.add(i.next().getValue());

Bukkit/src/main/java/com/plotsquared/bukkit/util/block/FastQueue_1_8_3.java

@@ -49,7 +49,7 @@ public class FastQueue_1_8_3 extends SlowQueue {
     private final RefMethod methodGetWorld;
     private final RefField tileEntityListTick;
 
-    public FastQueue_1_8_3() throws RuntimeException {
+    public FastQueue_1_8_3() throws NoSuchMethodException, ClassNotFoundException, NoSuchFieldException {
         RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");
         RefClass classCraftWorld = getRefClass("{cb}.CraftWorld");
         this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");

Bukkit/src/main/java/com/plotsquared/bukkit/util/block/FastQueue_1_9.java

@@ -53,7 +53,7 @@ public class FastQueue_1_9 extends SlowQueue {
     private final RefField tileEntityListTick;
 
 
-    public FastQueue_1_9() throws RuntimeException {
+    public FastQueue_1_9() throws NoSuchFieldException, NoSuchMethodException, ClassNotFoundException {
         RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");
         this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");
         RefClass classChunk = getRefClass("{nms}.Chunk");

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

@@ -14,6 +14,7 @@ import org.bukkit.OfflinePlayer;
 import org.bukkit.Server;
 import org.bukkit.entity.Player;
 
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Collection;
 import java.util.UUID;
@@ -48,11 +49,9 @@ public class OfflineUUIDWrapper extends UUIDWrapper {
     @Override
     public OfflinePlotPlayer getOfflinePlayer(UUID uuid) {
         BiMap<UUID, StringWrapper> map = UUIDHandler.getUuidMap().inverse();
-        String name;
-        try {
+        String name = null;
+        if (map.containsKey(uuid)) {
             name = map.get(uuid).value;
-        } catch (NullPointerException e) {
-            name = null;
         }
         if (name != null) {
             OfflinePlayer op = Bukkit.getOfflinePlayer(name);
@@ -81,7 +80,7 @@ public class OfflineUUIDWrapper extends UUIDWrapper {
                 @SuppressWarnings("unchecked") Collection<? extends Player> p = (Collection<? extends Player>) players;
                 return p.toArray(new Player[p.size()]);
             }
-        } catch (Exception e) {
+        } catch (IllegalAccessException | InvocationTargetException | IllegalArgumentException ignored) {
             PS.debug("Failed to resolve online players");
             this.getOnline = null;
             Collection<? extends Player> onlinePlayers = Bukkit.getOnlinePlayers();

Core/src/main/java/com/intellectualcrafters/configuration/ConfigurationOptions.java

@@ -4,10 +4,10 @@ package com.intellectualcrafters.configuration;
  * Various settings for controlling the input and output of a {@link
  * Configuration}
  */
-public class ConfigurationOptions {
+class ConfigurationOptions {
+    private final Configuration configuration;
     private char pathSeparator = '.';
     private boolean copyDefaults = false;
-    private final Configuration configuration;
     
     protected ConfigurationOptions(final Configuration configuration) {
         this.configuration = configuration;

Core/src/main/java/com/intellectualcrafters/configuration/MemorySection.java

@@ -76,8 +76,7 @@ public class MemorySection implements ConfigurationSection {
         if (obj instanceof String) {
             try {
                 return Double.parseDouble((String) obj);
-            } catch (NumberFormatException ignored) {
-            }
+            } catch (NumberFormatException ignored) {}
         } else if (obj instanceof List) {
             List<?> val = (List<?>) obj;
             if (!val.isEmpty()) {
@@ -94,8 +93,7 @@ public class MemorySection implements ConfigurationSection {
         if (obj instanceof String) {
             try {
                 return Integer.parseInt((String) obj);
-            } catch (NumberFormatException ignored) {
-            }
+            } catch (NumberFormatException ignored) {}
         } else if (obj instanceof List) {
             List<?> val = (List<?>) obj;
             if (!val.isEmpty()) {
@@ -112,8 +110,7 @@ public class MemorySection implements ConfigurationSection {
         if (obj instanceof String) {
             try {
                 return Long.parseLong((String) obj);
-            } catch (NumberFormatException ignored) {
-            }
+            } catch (NumberFormatException ignored) {}
         } else if (obj instanceof List) {
             List<?> val = (List<?>) obj;
             if (!val.isEmpty()) {
@@ -569,8 +566,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Integer.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((int) (Character) object);
             } else if (object instanceof Number) {
@@ -614,8 +610,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Double.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((double) (Character) object);
             } else if (object instanceof Number) {
@@ -638,8 +633,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Float.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((float) (Character) object);
             } else if (object instanceof Number) {
@@ -662,8 +656,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Long.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((long) (Character) object);
             } else if (object instanceof Number) {
@@ -686,8 +679,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Byte.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((byte) ((Character) object).charValue());
             } else if (object instanceof Number) {
@@ -733,8 +725,7 @@ public class MemorySection implements ConfigurationSection {
             } else if (object instanceof String) {
                 try {
                     result.add(Short.valueOf((String) object));
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             } else if (object instanceof Character) {
                 result.add((short) ((Character) object).charValue());
             } else if (object instanceof Number) {

Core/src/main/java/com/intellectualcrafters/configuration/file/FileConfiguration.java

@@ -25,8 +25,7 @@ public abstract class FileConfiguration extends MemoryConfiguration {
     /**
      * Creates an empty {@link FileConfiguration} with no default values.
      */
-    public FileConfiguration() {
-    }
+    FileConfiguration() {}
     
     /**
      * Creates an empty {@link FileConfiguration} using the specified {@link
@@ -54,9 +53,6 @@ public abstract class FileConfiguration extends MemoryConfiguration {
      * @throws IllegalArgumentException Thrown when file is null.
      */
     public void save(File file) throws IOException {
-        if (file == null) {
-            throw new NullPointerException("File cannot be null");
-        }
         file.getParentFile().mkdirs();
 
         String data = saveToString();
@@ -66,29 +62,6 @@ public abstract class FileConfiguration extends MemoryConfiguration {
         }
     }
 
-    /**
-     * Saves this {@link FileConfiguration} to the specified location.
-     * <p>
-     * If the file does not exist, it will be created. If already exists, it
-     * will be overwritten. If it cannot be overwritten or created, an
-     * exception will be thrown.
-     * <p>
-     * This method will save using the system default encoding, or possibly
-     * using UTF8.
-     *
-     * @param file File to save to.
-     * @throws IOException Thrown when the given file cannot be written to for
-     *     any reason.
-     * @throws IllegalArgumentException Thrown when file is null.
-     */
-    public void save(String file) throws IOException {
-        if (file == null) {
-            throw new NullPointerException("File cannot be null");
-        }
-        
-        save(new File(file));
-    }
-    
     /**
      * Saves this {@link FileConfiguration} to a string, and returns it.
      *

Core/src/main/java/com/intellectualcrafters/configuration/file/YamlConfiguration.java

@@ -21,8 +21,8 @@ import java.util.Map;
  * Note that this implementation is not synchronized.
  */
 public class YamlConfiguration extends FileConfiguration {
-    protected static final String COMMENT_PREFIX = "# ";
-    protected static final String BLANK_CONFIG = "{}\n";
+    private static final String COMMENT_PREFIX = "# ";
+    private static final String BLANK_CONFIG = "{}\n";
     private final DumperOptions yamlOptions = new DumperOptions();
     private final Representer yamlRepresenter = new YamlRepresenter();
     private final Yaml yaml = new Yaml(new YamlConstructor(), yamlRepresenter, yamlOptions);
@@ -40,7 +40,7 @@ public class YamlConfiguration extends FileConfiguration {
      * @return Resulting configuration
      * @throws IllegalArgumentException Thrown if file is null
      */
-    public static YamlConfiguration loadConfiguration(final File file) {
+    public static YamlConfiguration loadConfiguration(File file) {
         if (file == null) {
             throw new NullPointerException("File cannot be null");
         }
@@ -163,7 +163,7 @@ public class YamlConfiguration extends FileConfiguration {
 
             if (line.startsWith(COMMENT_PREFIX)) {
                 if (i > 0) {
-                    result.append("\n");
+                    result.append('\n');
                 }
 
                 if (line.length() > COMMENT_PREFIX.length()) {
@@ -172,7 +172,7 @@ public class YamlConfiguration extends FileConfiguration {
 
                 foundHeader = true;
             } else if (foundHeader && line.isEmpty()) {
-                result.append("\n");
+                result.append('\n');
             } else if (foundHeader) {
                 readingHeader = false;
             }
@@ -189,8 +189,8 @@ public class YamlConfiguration extends FileConfiguration {
             final Configuration def = getDefaults();
 
             if (def instanceof FileConfiguration) {
-                final FileConfiguration filedefaults = (FileConfiguration) def;
-                final String defaultsHeader = filedefaults.buildHeader();
+                final FileConfiguration fileDefaults = (FileConfiguration) def;
+                final String defaultsHeader = fileDefaults.buildHeader();
 
                 if ((defaultsHeader != null) && !defaultsHeader.isEmpty()) {
                     return defaultsHeader;
@@ -207,7 +207,7 @@ public class YamlConfiguration extends FileConfiguration {
         boolean startedHeader = false;
 
         for (int i = lines.length - 1; i >= 0; i--) {
-            builder.insert(0, "\n");
+            builder.insert(0, '\n');
 
             if (startedHeader || !lines[i].isEmpty()) {
                 builder.insert(0, lines[i]);

Core/src/main/java/com/intellectualcrafters/configuration/file/YamlConfigurationOptions.java

@@ -7,7 +7,7 @@ package com.intellectualcrafters.configuration.file;
 public class YamlConfigurationOptions extends FileConfigurationOptions {
     private int indent = 2;
     
-    protected YamlConfigurationOptions(final YamlConfiguration configuration) {
+    YamlConfigurationOptions(final YamlConfiguration configuration) {
         super(configuration);
     }
     

Core/src/main/java/com/intellectualcrafters/configuration/file/YamlConstructor.java

@@ -11,7 +11,7 @@ import java.util.Map;
 
 public class YamlConstructor extends SafeConstructor {
     
-    public YamlConstructor() {
+    YamlConstructor() {
         yamlConstructors.put(Tag.MAP, new ConstructCustomObject());
     }
     

Core/src/main/java/com/intellectualcrafters/configuration/file/YamlRepresenter.java

@@ -9,7 +9,7 @@ import org.yaml.snakeyaml.representer.Representer;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-public class YamlRepresenter extends Representer {
+class YamlRepresenter extends Representer {
 
     public YamlRepresenter() {
         this.multiRepresenters.put(ConfigurationSection.class, new RepresentConfigurationSection());

Core/src/main/java/com/intellectualcrafters/configuration/serialization/ConfigurationSerialization.java

@@ -17,8 +17,7 @@ import java.util.logging.Logger;
 public class ConfigurationSerialization {
 
     public static final String SERIALIZED_TYPE_KEY = "==";
-    private static final Map<String, Class<? extends ConfigurationSerializable>> aliases =
-            new HashMap<String, Class<? extends ConfigurationSerializable>>();
+    private static final Map<String, Class<? extends ConfigurationSerializable>> aliases = new HashMap<>();
     private final Class<? extends ConfigurationSerializable> clazz;
 
     protected ConfigurationSerialization(Class<? extends ConfigurationSerializable> clazz) {
@@ -128,8 +127,7 @@ public class ConfigurationSerialization {
      * @param clazz Class to unregister
      */
     public static void unregisterClass(Class<? extends ConfigurationSerializable> clazz) {
-        while (aliases.values().remove(clazz)) {
-        }
+        while (aliases.values().remove(clazz)) {}
     }
 
     /**
@@ -154,7 +152,7 @@ public class ConfigurationSerialization {
         DelegateDeserialization delegate = clazz.getAnnotation(DelegateDeserialization.class);
 
         if (delegate != null) {
-            if ((delegate.value() == null) || (delegate.value() == clazz)) {
+            if (delegate.value() == clazz) {
                 delegate = null;
             } else {
                 return getAlias(delegate.value());
@@ -182,9 +180,7 @@ public class ConfigurationSerialization {
             }
 
             return method;
-        } catch (NoSuchMethodException ex) {
-            return null;
-        } catch (SecurityException ex) {
+        } catch (NoSuchMethodException | SecurityException ignored) {
             return null;
         }
     }
@@ -192,9 +188,7 @@ public class ConfigurationSerialization {
     protected Constructor<? extends ConfigurationSerializable> getConstructor() {
         try {
             return this.clazz.getConstructor(Map.class);
-        } catch (NoSuchMethodException ex) {
-            return null;
-        } catch (SecurityException ex) {
+        } catch (NoSuchMethodException | SecurityException ignored) {
             return null;
         }
     }

Core/src/main/java/com/intellectualcrafters/jnbt/EndTag.java

@@ -8,8 +8,7 @@ public final class EndTag extends Tag {
     /**
      * Creates the tag.
      */
-    public EndTag() {
-    }
+    public EndTag() {}
 
     @Override
     public Object getValue() {

Core/src/main/java/com/intellectualcrafters/jnbt/NBTConstants.java

@@ -16,8 +16,7 @@ public final class NBTConstants {
     /**
      * Default private constructor.
      */
-    private NBTConstants() {
-    }
+    private NBTConstants() {}
 
     /**
      * Convert a type ID to its corresponding {@link Tag} class.

Core/src/main/java/com/intellectualcrafters/jnbt/NBTUtils.java

@@ -10,8 +10,7 @@ public final class NBTUtils {
     /**
      * Default private constructor.
      */
-    private NBTUtils() {
-    }
+    private NBTUtils() {}
 
     /**
      * Gets the type name of a tag.

Core/src/main/java/com/intellectualcrafters/json/JSONObject.java

@@ -88,8 +88,7 @@ public class JSONObject {
         for (String name : names) {
             try {
                 putOnce(name, jo.opt(name));
-            } catch (JSONException ignore) {
-            }
+            } catch (JSONException ignore) {}
         }
     }
     
@@ -194,8 +193,7 @@ public class JSONObject {
         for (String name : names) {
             try {
                 putOpt(name, c.getField(name).get(object));
-            } catch (JSONException | SecurityException | NoSuchFieldException | IllegalArgumentException | IllegalAccessException ignore) {
-            }
+            } catch (JSONException | SecurityException | NoSuchFieldException | IllegalArgumentException | IllegalAccessException ignore) {}
         }
     }
     
@@ -461,8 +459,7 @@ public class JSONObject {
                         }
                     }
                 }
-            } catch (NumberFormatException ignore) {
-            }
+            } catch (NumberFormatException ignore) {}
         }
         return string;
     }
@@ -586,7 +583,7 @@ public class JSONObject {
                 return object.toString();
             }
             return new JSONObject(object);
-        } catch (JSONException exception) {
+        } catch (JSONException ignored) {
             return null;
         }
     }
@@ -734,7 +731,7 @@ public class JSONObject {
         Object object = get(key);
         try {
             return object instanceof Number ? ((Number) object).doubleValue() : Double.parseDouble((String) object);
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             throw new JSONException("JSONObject[" + quote(key) + "] is not a number.");
         }
     }
@@ -752,7 +749,7 @@ public class JSONObject {
         Object object = get(key);
         try {
             return object instanceof Number ? ((Number) object).intValue() : Integer.parseInt((String) object);
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             throw new JSONException("JSONObject[" + quote(key) + "] is not an int.");
         }
     }
@@ -804,7 +801,7 @@ public class JSONObject {
         Object object = get(key);
         try {
             return object instanceof Number ? ((Number) object).longValue() : Long.parseLong((String) object);
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             throw new JSONException("JSONObject[" + quote(key) + "] is not a long.");
         }
     }
@@ -953,7 +950,7 @@ public class JSONObject {
     public boolean optBoolean(String key, boolean defaultValue) {
         try {
             return getBoolean(key);
-        } catch (JSONException e) {
+        } catch (JSONException ignored) {
             return defaultValue;
         }
     }
@@ -982,7 +979,7 @@ public class JSONObject {
     public double optDouble(String key, double defaultValue) {
         try {
             return getDouble(key);
-        } catch (JSONException e) {
+        } catch (JSONException ignored) {
             return defaultValue;
         }
     }
@@ -1011,7 +1008,7 @@ public class JSONObject {
     public int optInt(String key, int defaultValue) {
         try {
             return getInt(key);
-        } catch (JSONException e) {
+        } catch (JSONException ignored) {
             return defaultValue;
         }
     }
@@ -1066,7 +1063,7 @@ public class JSONObject {
     public long optLong(String key, long defaultValue) {
         try {
             return getLong(key);
-        } catch (JSONException e) {
+        } catch (JSONException ignored) {
             return defaultValue;
         }
     }
@@ -1127,8 +1124,7 @@ public class JSONObject {
                         }
                     }
                 }
-            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ignore) {
-            }
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ignore) {}
         }
     }
     
@@ -1330,7 +1326,7 @@ public class JSONObject {
                 }
             }
             return true;
-        } catch (JSONException exception) {
+        } catch (JSONException ignored) {
             return false;
         }
     }
@@ -1370,7 +1366,7 @@ public class JSONObject {
     public String toString() {
         try {
             return this.toString(0);
-        } catch (JSONException e) {
+        } catch (JSONException ignored) {
             return null;
         }
     }
@@ -1476,7 +1472,7 @@ public class JSONObject {
         protected final Object clone() {
             try {
                 return super.clone();
-            } catch (CloneNotSupportedException e) {
+            } catch (CloneNotSupportedException ignored) {
                 return this;
             }
         }

Core/src/main/java/com/intellectualcrafters/json/XML.java

@@ -245,8 +245,7 @@ class XML {
                 if (value.toString().equals(string)) {
                     return value;
                 }
-            } catch (NumberFormatException ignored) {
-            }
+            } catch (NumberFormatException ignored) {}
         }
         return string;
     }

Core/src/main/java/com/intellectualcrafters/plot/PS.java

@@ -829,7 +829,7 @@ public class PS {
         return result;
     }
 
-    public ArrayList<Plot> sortPlotsByTemp(Collection<Plot> plots) {
+    public List<Plot> sortPlotsByTemp(Collection<Plot> plots) {
         int max = 0;
         int overflowCount = 0;
         for (Plot plot : plots) {
@@ -1761,7 +1761,7 @@ public class PS {
             // Close the connection
             DBFunc.close();
             UUIDHandler.handleShutdown();
-        } catch (NullPointerException e) {
+        } catch (NullPointerException ignored) {
             PS.log("&cCould not close database connection!");
         }
     }
@@ -2099,7 +2099,7 @@ public class PS {
             }
             this.config = YamlConfiguration.loadConfiguration(this.configFile);
             setupConfig();
-        } catch (IOException err_trans) {
+        } catch (IOException ignored) {
             PS.log("Failed to save settings.yml");
         }
         try {
@@ -2111,7 +2111,7 @@ public class PS {
             }
             this.storage = YamlConfiguration.loadConfiguration(this.storageFile);
             setupStorage();
-        } catch (IOException err_trans) {
+        } catch (IOException ignored) {
             PS.log("Failed to save storage.yml");
         }
         try {
@@ -2123,7 +2123,7 @@ public class PS {
             }
             this.commands = YamlConfiguration.loadConfiguration(this.commandsFile);
             setupStorage();
-        } catch (IOException err_trans) {
+        } catch (IOException ignored) {
             PS.log("Failed to save commands.yml");
         }
         try {

Core/src/main/java/com/intellectualcrafters/plot/commands/Buy.java

@@ -43,7 +43,7 @@ public class Buy extends SubCommand {
                     return false;
                 }
                 plots = plot.getConnectedPlots();
-            } catch (Exception e) {
+            } catch (Exception ignored) {
                 return sendMessage(plr, C.NOT_VALID_PLOT_ID);
             }
         } else {

Core/src/main/java/com/intellectualcrafters/plot/commands/Continue.java

@@ -27,7 +27,7 @@ public class Continue extends SubCommand {
             MainUtil.sendMessage(plr, C.NO_PLOT_PERMS);
             return false;
         }
-        if (!plot.getFlags().containsKey("done")) {
+        if (!plot.hasFlag(Flags.DONE)) {
             MainUtil.sendMessage(plr, C.DONE_NOT_DONE);
             return false;
         }

Core/src/main/java/com/intellectualcrafters/plot/commands/DebugExec.java

@@ -80,8 +80,7 @@ public class DebugExec extends SubCommand {
                     this.engine.eval(script, this.scope);
                 }
             }
-        } catch (IOException | ScriptException ignored) {
-        }
+        } catch (IOException | ScriptException ignored) {}
     }
 
     public ScriptEngine getEngine() {
@@ -360,12 +359,7 @@ public class DebugExec extends SubCommand {
                         @Override
                         public void run(Integer i, File file, PlotMessage message) {
                             String name = file.getName();
-
-                            message.text("[").color("$3")
-                                    .text(i + "").color("$1")
-                                    .text("]").color("$3")
-                                    .text(" " + name).color("$1");
-
+                            message.text("[").color("$3").text(String.valueOf(i)).color("$1").text("]").color("$3").text(' ' + name).color("$1");
                         }
                     }, "/plot debugexec list-scripts", "List of scripts");
                     return true;

Core/src/main/java/com/intellectualcrafters/plot/commands/Delete.java

@@ -12,8 +12,6 @@ import com.intellectualcrafters.plot.util.Permissions;
 import com.intellectualcrafters.plot.util.TaskManager;
 import com.plotsquared.general.commands.CommandDeclaration;
 
-import java.util.HashSet;
-
 @CommandDeclaration(
         command = "delete",
         permission = "plots.delete",
@@ -40,7 +38,7 @@ public class Delete extends SubCommand {
             return !sendMessage(plr, C.NO_PLOT_PERMS);
         }
         final PlotArea plotworld = plot.getArea();
-        final HashSet<Plot> plots = plot.getConnectedPlots();
+        final java.util.Set<Plot> plots = plot.getConnectedPlots();
         Runnable run = new Runnable() {
             @Override
             public void run() {
@@ -57,7 +55,7 @@ public class Delete extends SubCommand {
                             double value = plotworld.PRICES.get("sell") * plots.size();
                             if (value > 0d) {
                                 EconHandler.manager.depositMoney(plr, value);
-                                sendMessage(plr, C.ADDED_BALANCE, value + "");
+                                sendMessage(plr, C.ADDED_BALANCE, String.valueOf(value));
                             }
                         }
                         MainUtil.sendMessage(plr, C.CLEARING_DONE, System.currentTimeMillis() - start);

Core/src/main/java/com/intellectualcrafters/plot/commands/Done.java

@@ -2,8 +2,6 @@ package com.intellectualcrafters.plot.commands;
 
 import com.intellectualcrafters.plot.config.C;
 import com.intellectualcrafters.plot.config.Settings;
-import com.intellectualcrafters.plot.flag.Flag;
-import com.intellectualcrafters.plot.flag.FlagManager;
 import com.intellectualcrafters.plot.flag.Flags;
 import com.intellectualcrafters.plot.generator.HybridUtils;
 import com.intellectualcrafters.plot.object.Location;
@@ -34,7 +32,7 @@ public class Done extends SubCommand {
             MainUtil.sendMessage(plr, C.NO_PLOT_PERMS);
             return false;
         }
-        if (plot.getFlags().containsKey("done")) {
+        if (plot.hasFlag(Flags.DONE)) {
             MainUtil.sendMessage(plr, C.DONE_ALREADY_DONE);
             return false;
         }
@@ -50,8 +48,7 @@ public class Done extends SubCommand {
                 plot.removeRunning();
                 if ((value == null) || (value.getComplexity() >= Settings.CLEAR_THRESHOLD)) {
                     long flagValue = System.currentTimeMillis() / 1000;
-                    Flag flag = Flags.DONE;
-                    FlagManager.addPlotFlag(plot, flag, flagValue);
+                    plot.setFlag(Flags.DONE,flagValue);
                     MainUtil.sendMessage(plr, C.DONE_SUCCESS);
                 } else {
                     MainUtil.sendMessage(plr, C.DONE_INSUFFICIENT_COMPLEXITY);

Core/src/main/java/com/intellectualcrafters/plot/commands/ListCmd.java

@@ -101,7 +101,7 @@ public class ListCmd extends SubCommand {
                 if (page < 0) {
                     page = 0;
                 }
-            } catch (Exception e) {
+            } catch (NumberFormatException ignored) {
                 page = -1;
             }
         }
@@ -313,8 +313,7 @@ public class ListCmd extends SubCommand {
                 if (uuid == null) {
                     try {
                         uuid = UUID.fromString(args[0]);
-                    } catch (Exception ignored) {
-                    }
+                    } catch (Exception ignored) {}
                 }
                 if (uuid != null) {
                     if (!Permissions.hasPermission(plr, "plots.list.player")) {

Core/src/main/java/com/intellectualcrafters/plot/commands/Load.java

@@ -68,14 +68,14 @@ public class Load extends SubCommand {
                 String schematic;
                 try {
                     schematic = schematics.get(Integer.parseInt(args[0]) - 1);
-                } catch (NumberFormatException e) {
+                } catch (NumberFormatException ignored) {
                     // use /plot load <index>
-                    MainUtil.sendMessage(plr, C.NOT_VALID_NUMBER, "(1, " + schematics.size() + ")");
+                    MainUtil.sendMessage(plr, C.NOT_VALID_NUMBER, "(1, " + schematics.size() + ')');
                     return false;
                 }
                 final URL url;
                 try {
-                    url = new URL(Settings.WEB_URL + "saves/" + plr.getUUID() + "/" + schematic + ".schematic");
+                    url = new URL(Settings.WEB_URL + "saves/" + plr.getUUID() + '/' + schematic + ".schematic");
                 } catch (MalformedURLException e) {
                     e.printStackTrace();
                     MainUtil.sendMessage(plr, C.LOAD_FAILED);
@@ -147,7 +147,7 @@ public class Load extends SubCommand {
                 }
                 String time = secToTime((System.currentTimeMillis() / 1000) - Long.parseLong(split[0]));
                 String world = split[1];
-                PlotId id = PlotId.fromString(split[2] + ";" + split[3]);
+                PlotId id = PlotId.fromString(split[2] + ';' + split[3]);
                 String size = split[4];
                 String server = split[5].replaceAll(".schematic", "");
                 String color;
@@ -157,7 +157,7 @@ public class Load extends SubCommand {
                     color = "$1";
                 }
                 MainUtil.sendMessage(player,
-                        "$3[$2" + (i + 1) + "$3] " + color + time + "$3 | " + color + world + ";" + id + "$3 | " + color + size + "x" + size);
+                        "$3[$2" + (i + 1) + "$3] " + color + time + "$3 | " + color + world + ';' + id + "$3 | " + color + size + 'x' + size);
             } catch (Exception e) {
                 e.printStackTrace();
             }

Core/src/main/java/com/intellectualcrafters/plot/commands/Owner.java

@@ -11,7 +11,7 @@ import com.intellectualcrafters.plot.util.TaskManager;
 import com.intellectualcrafters.plot.util.UUIDHandler;
 import com.plotsquared.general.commands.CommandDeclaration;
 
-import java.util.HashSet;
+import java.util.Set;
 import java.util.UUID;
 
 @CommandDeclaration(
@@ -27,15 +27,14 @@ public class Owner extends SetCommand {
 
     @Override
     public boolean set(final PlotPlayer plr, final Plot plot, String value) {
-        HashSet<Plot> plots = plot.getConnectedPlots();
+        Set<Plot> plots = plot.getConnectedPlots();
         UUID uuid = null;
         String name = null;
         if (value.length() == 36) {
             try {
                 uuid = UUID.fromString(value);
                 name = MainUtil.getName(uuid);
-            } catch (Exception ignored) {
-            }
+            } catch (Exception ignored) {}
         } else {
             uuid = UUIDHandler.getUUID(value, null);
             name = UUIDHandler.getName(uuid);
@@ -43,7 +42,7 @@ public class Owner extends SetCommand {
         }
         if (uuid == null) {
             if (value.equalsIgnoreCase("none")) {
-                HashSet<Plot> connected = plot.getConnectedPlots();
+                Set<Plot> connected = plot.getConnectedPlots();
                 plot.unlinkPlot(false, false);
                 for (Plot current : connected) {
                     current.unclaim();

Core/src/main/java/com/intellectualcrafters/plot/commands/Rate.java

@@ -4,6 +4,7 @@ import com.intellectualcrafters.plot.PS;
 import com.intellectualcrafters.plot.config.C;
 import com.intellectualcrafters.plot.config.Settings;
 import com.intellectualcrafters.plot.database.DBFunc;
+import com.intellectualcrafters.plot.flag.Flags;
 import com.intellectualcrafters.plot.object.Plot;
 import com.intellectualcrafters.plot.object.PlotInventory;
 import com.intellectualcrafters.plot.object.PlotItemStack;
@@ -61,7 +62,7 @@ public class Rate extends SubCommand {
                 });
                 UUID uuid = player.getUUID();
                 for (Plot p : plots) {
-                    if ((!Settings.REQUIRE_DONE || p.getFlags().containsKey("done")) && p.isBasePlot() && (p.hasRatings() || !p.getRatings()
+                    if ((!Settings.REQUIRE_DONE || p.hasFlag(Flags.DONE)) && p.isBasePlot() && (p.hasRatings() || !p.getRatings()
                             .containsKey(uuid)) && !p.isAdded(uuid)) {
                         p.teleportPlayer(player);
                         MainUtil.sendMessage(player, C.RATE_THIS);
@@ -84,7 +85,7 @@ public class Rate extends SubCommand {
             sendMessage(player, C.RATING_NOT_YOUR_OWN);
             return false;
         }
-        if (Settings.REQUIRE_DONE && !plot.getFlags().containsKey("done")) {
+        if (Settings.REQUIRE_DONE && !plot.hasFlag(Flags.DONE)) {
             sendMessage(player, C.RATING_NOT_DONE);
             return false;
         }

Core/src/main/java/com/intellectualcrafters/plot/commands/Reload.java

@@ -1,6 +1,7 @@
 package com.intellectualcrafters.plot.commands;
 
 import com.intellectualcrafters.configuration.ConfigurationSection;
+import com.intellectualcrafters.configuration.InvalidConfigurationException;
 import com.intellectualcrafters.configuration.MemorySection;
 import com.intellectualcrafters.configuration.file.YamlConfiguration;
 import com.intellectualcrafters.plot.PS;
@@ -11,6 +12,7 @@ import com.intellectualcrafters.plot.object.RunnableVal;
 import com.intellectualcrafters.plot.util.MainUtil;
 import com.plotsquared.general.commands.CommandDeclaration;
 
+import java.io.IOException;
 import java.util.Objects;
 
 @CommandDeclaration(command = "reload",
@@ -77,7 +79,7 @@ public class Reload extends SubCommand {
             });
             PS.get().config.save(PS.get().configFile);
             MainUtil.sendMessage(plr, C.RELOADED_CONFIGS);
-        } catch (Exception e) {
+        } catch (InvalidConfigurationException | IOException e) {
             e.printStackTrace();
             MainUtil.sendMessage(plr, C.RELOAD_FAILED);
         }

Core/src/main/java/com/intellectualcrafters/plot/commands/Trim.java

@@ -52,15 +52,7 @@ public class Trim extends SubCommand {
                     String name = file.getName();
                     if (name.endsWith("mca")) {
                         if (file.getTotalSpace() <= 8192) {
-                            try {
-                                String[] split = name.split("\\.");
-                                int x = Integer.parseInt(split[1]);
-                                int z = Integer.parseInt(split[2]);
-                                ChunkLoc loc = new ChunkLoc(x, z);
-                                empty.add(loc);
-                            } catch (NumberFormatException e) {
-                                PS.debug("INVALID MCA: " + name);
-                            }
+                            checkMca(name);
                         } else {
                             Path path = Paths.get(file.getPath());
                             try {
@@ -69,24 +61,26 @@ public class Trim extends SubCommand {
                                 long modification = file.lastModified();
                                 long diff = Math.abs(creation - modification);
                                 if (diff < 10000) {
+                                    checkMca(name);
+                                }
+                            } catch (IOException ignored) {}
+                        }
+                    }
+                }
+                Trim.TASK = false;
+                TaskManager.runTaskAsync(whenDone);
+            }
+            private void checkMca(String name) {
                 try {
                     String[] split = name.split("\\.");
                     int x = Integer.parseInt(split[1]);
                     int z = Integer.parseInt(split[2]);
                     ChunkLoc loc = new ChunkLoc(x, z);
                     empty.add(loc);
-                                    } catch (Exception e) {
+                } catch (NumberFormatException ignored) {
                     PS.debug("INVALID MCA: " + name);
                 }
             }
-                            } catch (IOException ignored) {
-                            }
-                        }
-                    }
-                }
-                Trim.TASK = false;
-                TaskManager.runTaskAsync(whenDone);
-            }
         });
         Trim.TASK = true;
         return true;

Core/src/main/java/com/intellectualcrafters/plot/config/Configuration.java

@@ -162,8 +162,7 @@ public class Configuration {
                     if (result != null && result.match < 2) {
                         values[i] = result.best;
                     }
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             }
             int gcd = gcd(counts);
             for (int i = 0; i < counts.length; i++) {

Core/src/main/java/com/intellectualcrafters/plot/database/SQLManager.java

@@ -182,16 +182,13 @@ public class SQLManager implements AbstractDB {
                 }
 
                 @Override
-                public void set(PreparedStatement stmt) {
-                }
+                public void set(PreparedStatement stmt) {}
 
                 @Override
-                public void addBatch(PreparedStatement statement) {
-                }
+                public void addBatch(PreparedStatement statement) {}
 
                 @Override
-                public void execute(PreparedStatement statement) {
-                }
+                public void execute(PreparedStatement statement) {}
 
             };
         }
@@ -216,16 +213,13 @@ public class SQLManager implements AbstractDB {
                 }
 
                 @Override
-                public void set(PreparedStatement stmt) {
-                }
+                public void set(PreparedStatement stmt) {}
 
                 @Override
-                public void addBatch(PreparedStatement statement) {
-                }
+                public void addBatch(PreparedStatement statement) {}
 
                 @Override
-                public void execute(PreparedStatement statement) {
-                }
+                public void execute(PreparedStatement statement) {}
 
             };
         }
@@ -247,16 +241,13 @@ public class SQLManager implements AbstractDB {
                 }
 
                 @Override
-                public void set(PreparedStatement stmt) {
-                }
+                public void set(PreparedStatement stmt) {}
 
                 @Override
-                public void addBatch(PreparedStatement statement) {
-                }
+                public void addBatch(PreparedStatement statement) {}
 
                 @Override
-                public void execute(PreparedStatement statement) {
-                }
+                public void execute(PreparedStatement statement) {}
 
             };
         }
@@ -990,8 +981,7 @@ public class SQLManager implements AbstractDB {
             }
 
             @Override
-            public void execute(PreparedStatement statement) {
-            }
+            public void execute(PreparedStatement statement) {}
 
             @Override
             public void addBatch(PreparedStatement statement) throws SQLException {
@@ -1808,8 +1798,7 @@ public class SQLManager implements AbstractDB {
                                 default:
                                     try {
                                         plot.getSettings().setPosition(BlockLoc.fromString(pos));
-                                    } catch (Exception ignored) {
-                                    }
+                                    } catch (Exception ignored) {}
                             }
                             Integer m = resultSet.getInt("merged");
                             boolean[] merged = new boolean[4];
@@ -1963,7 +1952,7 @@ public class SQLManager implements AbstractDB {
 
     @Override
     public void setFlags(final Plot plot, HashMap<Flag<?>, Object> flags) {
-        final String flag_string = FlagManager.toString(flags); //todo MattBDev: Fix this for flags to work.
+        final String flag_string = FlagManager.toString(flags);
         addPlotTask(plot, new UniqueStatement("setFlags") {
             @Override
             public void set(PreparedStatement stmt) throws SQLException {
@@ -2178,8 +2167,7 @@ public class SQLManager implements AbstractDB {
             }
 
             @Override
-            public void execute(PreparedStatement statement) {
-            }
+            public void execute(PreparedStatement statement) {}
 
             @Override
             public void addBatch(PreparedStatement statement) throws SQLException {
@@ -2480,8 +2468,7 @@ public class SQLManager implements AbstractDB {
             }
 
             @Override
-            public void execute(PreparedStatement statement) {
-            }
+            public void execute(PreparedStatement statement) {}
 
             @Override
             public void addBatch(PreparedStatement statement) throws SQLException {
@@ -2621,8 +2608,7 @@ public class SQLManager implements AbstractDB {
                                 try {
                                     BlockLoc loc = BlockLoc.fromString(pos);
                                     cluster.settings.setPosition(loc);
-                                } catch (Exception ignored) {
-                                }
+                                } catch (Exception ignored) {}
                         }
                         Integer m = resultSet.getInt("merged");
                         boolean[] merged = new boolean[4];
@@ -2690,9 +2676,8 @@ public class SQLManager implements AbstractDB {
             if (i != 0) {
                 flag_string.append(',');
             }
-            flag_string.append(flag.getKey().getName()).append(":")
-                    .append(flag.getKey().valueToString(flag.getValue()).replaceAll(":", "¯").replaceAll(",",
-                            "´"));
+            flag_string.append(flag.getKey().getName()).append(':')
+                    .append(flag.getKey().valueToString(flag.getValue()).replaceAll(":", "¯").replaceAll(",", "´"));
             i++;
         }
         addClusterTask(cluster, new UniqueStatement("setFlags") {
@@ -2781,8 +2766,7 @@ public class SQLManager implements AbstractDB {
             }
 
             @Override
-            public void execute(PreparedStatement statement) {
-            }
+            public void execute(PreparedStatement statement) {}
 
             @Override
             public void addBatch(PreparedStatement statement) throws SQLException {

Core/src/main/java/com/intellectualcrafters/plot/flag/FlagManager.java

@@ -63,9 +63,8 @@ public class FlagManager {
     public static String toString(HashMap<Flag<?>, Object> flags) {
         StringBuilder flag_string = new StringBuilder();
         int i = 0;
-        Flag<?> flag;
         for (Map.Entry<Flag<?>, Object> entry : flags.entrySet()) {
-            flag = entry.getKey();
+            Flag<?> flag = entry.getKey();
             if (i != 0) {
                 flag_string.append(",");
             }
@@ -132,7 +131,7 @@ public class FlagManager {
      * @param plot
      * @return set of flags
      */
-    public static HashMap<Flag<?>, Object> getPlotFlags(Plot plot) {
+    public static Map<Flag<?>, Object> getPlotFlags(Plot plot) {
         if (!plot.hasOwner()) {
             return null;
         }
@@ -158,7 +157,7 @@ public class FlagManager {
         return flags;
     }
 
-    public static HashMap<Flag<?>, Object> getSettingFlags(PlotArea area, PlotSettings settings) {
+    public static Map<Flag<?>, Object> getSettingFlags(PlotArea area, PlotSettings settings) {
         return getPlotFlags(area, settings, false);
     }
 
@@ -227,7 +226,7 @@ public class FlagManager {
      *
      * @param player with permissions
      *
-     * @return List (AbstractFlag)
+     * @return List (Flag)
      */
     public static List<Flag> getFlags(PlotPlayer player) {
         List<Flag> returnFlags = new ArrayList<>();
@@ -240,11 +239,11 @@ public class FlagManager {
     }
 
     /**
-     * Get an AbstractFlag by a string Returns null if flag does not exist
+     * Get an Flag by a String
      *
-     * @param string Flag Key
+     * @param string the flag name
      *
-     * @return AbstractFlag
+     * @return the flag or null if the flag the provided name does not exist
      */
     public static Flag<?> getFlag(String string) {
         for (Flag flag : Flags.getFlags()) {
@@ -258,7 +257,7 @@ public class FlagManager {
         return null;
     }
 
-    public static HashMap<Flag<?>, Object> parseFlags(List<String> flagstrings) {
+    public static Map<Flag<?>, Object> parseFlags(List<String> flagstrings) {
         HashMap<Flag<?>, Object> map = new HashMap<>();
 
         for (String key : flagstrings) {

Core/src/main/java/com/intellectualcrafters/plot/generator/AugmentedUtils.java

@@ -143,8 +143,7 @@ public class AugmentedUtils {
                     }
 
                     @Override
-                    public void setBiome(int x, int z, int biome) {
-                    }
+                    public void setBiome(int x, int z, int biome) {}
 
                     @Override
                     public PlotChunk clone() {

Core/src/main/java/com/intellectualcrafters/plot/generator/IndependentPlotGenerator.java

@@ -55,8 +55,7 @@ public abstract class IndependentPlotGenerator {
      *  - e.g. If setup doesn't support some standard options
      * @param setup
      */
-    public void processSetup(SetupObject setup) {
-    }
+    public void processSetup(SetupObject setup) {}
 
     /**
      * It is preferred for the PlotArea object to do most of the initialization necessary.

Core/src/main/java/com/intellectualcrafters/plot/generator/SquarePlotManager.java

@@ -176,7 +176,7 @@ public abstract class SquarePlotManager extends GridPlotManager {
                     return plot.getMerged(7) ? id : null;
             }
             PS.debug("invalid location: " + Arrays.toString(merged));
-        } catch (Exception e) {
+        } catch (Exception ignored) {
             PS.debug("Invalid plot / road width in settings.yml for world: " + plotworld.worldname);
         }
         return null;

Core/src/main/java/com/intellectualcrafters/plot/object/ConsolePlayer.java

@@ -87,12 +87,10 @@ public class ConsolePlayer extends PlotPlayer {
     }
     
     @Override
-    public void setCompassTarget(Location location) {
-    }
+    public void setCompassTarget(Location location) {}
 
     @Override
-    public void setAttribute(String key) {
-    }
+    public void setAttribute(String key) {}
     
     @Override
     public boolean getAttribute(String key) {
@@ -100,8 +98,7 @@ public class ConsolePlayer extends PlotPlayer {
     }
     
     @Override
-    public void removeAttribute(String key) {
-    }
+    public void removeAttribute(String key) {}
     
     @Override
     public void setMeta(String key, Object value) {
@@ -124,8 +121,7 @@ public class ConsolePlayer extends PlotPlayer {
     }
     
     @Override
-    public void setWeather(PlotWeather weather) {
-    }
+    public void setWeather(PlotWeather weather) {}
     
     @Override
     public PlotGameMode getGameMode() {
@@ -133,24 +129,19 @@ public class ConsolePlayer extends PlotPlayer {
     }
     
     @Override
-    public void setGameMode(PlotGameMode gameMode) {
-    }
+    public void setGameMode(PlotGameMode gameMode) {}
     
     @Override
-    public void setTime(long time) {
-    }
+    public void setTime(long time) {}
     
     @Override
-    public void setFlight(boolean fly) {
-    }
+    public void setFlight(boolean fly) {}
     
     @Override
-    public void playMusic(Location location, int id) {
-    }
+    public void playMusic(Location location, int id) {}
     
     @Override
-    public void kick(String message) {
-    }
+    public void kick(String message) {}
 
     @Override public void stopSpectating() {}
 

Core/src/main/java/com/intellectualcrafters/plot/object/Plot.java

@@ -335,7 +335,7 @@ public class Plot {
         if (!isMerged()) {
             return false;
         }
-        HashSet<Plot> connected = getConnectedPlots();
+        Set<Plot> connected = getConnectedPlots();
         for (Plot current : connected) {
             if (uuid.equals(current.owner)) {
                 return true;
@@ -350,14 +350,14 @@ public class Plot {
 
     /**
      * Get a immutable set of owner UUIDs for a plot (supports multi-owner mega-plots).
-     * @return
+     * @return the Plot owners
      */
     public Set<UUID> getOwners() {
         if (this.owner == null) {
-            return new HashSet<>();
+            return Collections.emptySet();
         }
         if (isMerged()) {
-            HashSet<Plot> plots = getConnectedPlots();
+            Set<Plot> plots = getConnectedPlots();
             Plot[] array = plots.toArray(new Plot[plots.size()]);
             ImmutableSet.Builder<UUID> owners = ImmutableSet.builder();
             UUID last = this.owner;
@@ -747,14 +747,11 @@ public class Plot {
     }
 
     public boolean clear(boolean checkRunning, final boolean isDelete, final Runnable whenDone) {
-        if (checkRunning && this.getRunning() != 0) {
-            return false;
-        }
-        if (!EventUtil.manager.callClear(this)) {
+        if (checkRunning && this.getRunning() != 0 || !EventUtil.manager.callClear(this)) {
             return false;
         }
         final HashSet<RegionWrapper> regions = this.getRegions();
-        final HashSet<Plot> plots = this.getConnectedPlots();
+        final Set<Plot> plots = this.getConnectedPlots();
         final ArrayDeque<Plot> queue = new ArrayDeque<>(plots);
         if (isDelete) {
             this.removeSign();
@@ -841,7 +838,7 @@ public class Plot {
     }
 
     /**
-     * Unlink the plot and all connected plots
+     * Unlink the plot and all connected plots.
      * @param createSign
      * @param createRoad
      * @return
@@ -850,7 +847,7 @@ public class Plot {
         if (!this.isMerged()) {
             return false;
         }
-        HashSet<Plot> plots = this.getConnectedPlots();
+        Set<Plot> plots = this.getConnectedPlots();
         ArrayList<PlotId> ids = new ArrayList<>(plots.size());
         for (Plot current : plots) {
             current.setHome(null);
@@ -982,7 +979,7 @@ public class Plot {
         if (!this.hasOwner()) {
             return false;
         }
-        final HashSet<Plot> plots = this.getConnectedPlots();
+        final Set<Plot> plots = this.getConnectedPlots();
         this.clear(false, true, new Runnable() {
             @Override
             public void run() {
@@ -1062,9 +1059,8 @@ public class Plot {
     }
 
     /**
-     * Unclaim the plot (does not modify terrain)<br>
-     *      - Changes made to this plot will not be reflected in unclaimed plot objects<br>
-     * @return
+     * Unclaim the plot (does not modify terrain). Changes made to this plot will not be reflected in unclaimed plot objects.
+     * @return false if the Plot has no owner, otherwise true.
      */
     public boolean unclaim() {
         if (this.owner == null) {
@@ -1264,9 +1260,7 @@ public class Plot {
         });
     }
 
-    /**
-     * Remove the plot sign if it is set
-     */
+    /** Remove the plot sign if it is set. */
     public void removeSign() {
         PlotManager manager = this.area.getPlotManager();
         if (!this.area.ALLOW_SIGNS) {
@@ -1276,9 +1270,7 @@ public class Plot {
         SetQueue.IMP.setBlock(this.area.worldname, loc.getX(), loc.getY(), loc.getZ(), 0);
     }
 
-    /**
-     * Set the plot sign if plot signs are enabled.
-     */
+    /** Set the plot sign if plot signs are enabled. */
     public void setSign() {
         if (this.owner == null) {
             this.setSign("unknown");
@@ -2076,7 +2068,7 @@ public class Plot {
         }
         HashSet<Plot> visited = new HashSet<>();
         HashSet<PlotId> merged = new HashSet<>();
-        HashSet<Plot> connected = this.getConnectedPlots();
+        Set<Plot> connected = this.getConnectedPlots();
         for (Plot current : connected) {
             merged.add(current.getId());
         }
@@ -2091,8 +2083,7 @@ public class Plot {
             Set<Plot> plots;
             if ((dir == -1 || dir == 0) && !current.getMerged(0)) {
                 Plot other = current.getRelative(0);
-                if (other != null
-                        && other.isOwner(uuid)
+                if (other != null && other.isOwner(uuid)
                         && (other.getBasePlot(false).equals(current.getBasePlot(false))
                         || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
                     current.mergePlot(other, removeRoads);
@@ -2103,12 +2094,9 @@ public class Plot {
             }
             if (max >= 0 && (dir == -1 || dir == 1) && !current.getMerged(1)) {
                 Plot other = current.getRelative(1);
-                if (other != null
-                        && other.isOwner(uuid)
+                if (other != null && other.isOwner(uuid)
                         && (other.getBasePlot(false).equals(current.getBasePlot(false))
-                        || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) &&
-
-                        (max -= plots.size()) != -1)) {
+                        || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
                     current.mergePlot(other, removeRoads);
                     merged.add(current.getId());
                     merged.add(other.getId());
@@ -2243,14 +2231,14 @@ public class Plot {
      *  - This result is cached globally
      * @return
      */
-    public HashSet<Plot> getConnectedPlots() {
+    public Set<Plot> getConnectedPlots() {
         if (this.settings == null) {
-            return new HashSet<>(Collections.singletonList(this));
+            return Collections.singleton(this);
         }
         boolean[] merged = this.getMerged();
         int hash = MainUtil.hash(merged);
         if (hash == 0) {
-            return new HashSet<>(Collections.singletonList(this));
+            return Collections.singleton(this);
         }
         if (connected_cache != null && connected_cache.contains(this)) {
             return connected_cache;
@@ -2386,7 +2374,7 @@ public class Plot {
             regions_cache.add(new RegionWrapper(pos1.getX(), pos2.getX(), pos1.getY(), pos2.getY(), pos1.getZ(), pos2.getZ()));
             return regions_cache;
         }
-        HashSet<Plot> plots = this.getConnectedPlots();
+        Set<Plot> plots = this.getConnectedPlots();
         HashSet<RegionWrapper> regions = regions_cache = new HashSet<>();
         HashSet<PlotId> visited = new HashSet<>();
         for (Plot current : plots) {
@@ -2712,7 +2700,7 @@ public class Plot {
             return false;
         }
         boolean occupied = false;
-        HashSet<Plot> plots = this.getConnectedPlots();
+        Set<Plot> plots = this.getConnectedPlots();
         for (Plot plot : plots) {
             Plot other = plot.getRelative(destination.getArea(), offset.x, offset.y);
             if (other.hasOwner()) {
@@ -2806,7 +2794,7 @@ public class Plot {
             TaskManager.runTaskLater(whenDone, 1);
             return false;
         }
-        HashSet<Plot> plots = this.getConnectedPlots();
+        Set<Plot> plots = this.getConnectedPlots();
         for (Plot plot : plots) {
             Plot other = plot.getRelative(destination.getArea(), offset.x, offset.y);
             if (other.hasOwner()) {
@@ -2873,7 +2861,6 @@ public class Plot {
     }
 
     public boolean hasFlag(Flag<?> flag) {
-        //todo
-        return false;
+        return getFlags().containsKey(flag);
     }
 }

Core/src/main/java/com/intellectualcrafters/plot/object/PlotArea.java

@@ -7,6 +7,7 @@ import com.intellectualcrafters.plot.config.ConfigurationNode;
 import com.intellectualcrafters.plot.config.Settings;
 import com.intellectualcrafters.plot.flag.Flag;
 import com.intellectualcrafters.plot.flag.FlagManager;
+import com.intellectualcrafters.plot.flag.Flags;
 import com.intellectualcrafters.plot.generator.GridPlotWorld;
 import com.intellectualcrafters.plot.generator.IndependentPlotGenerator;
 import com.intellectualcrafters.plot.util.EconHandler;
@@ -53,9 +54,9 @@ public abstract class PlotArea {
     public boolean SCHEMATIC_ON_CLAIM = false;
     public String SCHEMATIC_FILE = "null";
     public List<String> SCHEMATICS = null;
-    public HashMap<Flag<?>, Object> DEFAULT_FLAGS;
+    public Map<Flag<?>, Object> DEFAULT_FLAGS;
     public boolean USE_ECONOMY = false;
-    public HashMap<String, Double> PRICES = new HashMap<>();
+    public Map<String, Double> PRICES = new HashMap<>();
     public boolean SPAWN_EGGS = false;
     public boolean SPAWN_CUSTOM = true;
     public boolean SPAWN_BREEDING = false;
@@ -165,10 +166,7 @@ public abstract class PlotArea {
         if (this == obj) {
             return true;
         }
-        if (obj == null) {
-            return false;
-        }
-        if (getClass() != obj.getClass()) {
+        if (obj == null || getClass() != obj.getClass()) {
             return false;
         }
         PlotArea plotarea = (PlotArea) obj;
@@ -187,11 +185,8 @@ public abstract class PlotArea {
     public boolean isCompatible(PlotArea plotArea) {
         ConfigurationSection section = PS.get().config.getConfigurationSection("worlds");
         for (ConfigurationNode setting : plotArea.getSettingNodes()) {
-            Object constant = section.get(plotArea.worldname + "." + setting.getConstant());
-            if (constant == null) {
-                return false;
-            }
-            if (!constant.equals(section.get(this.worldname + "." + setting.getConstant()))) {
+            Object constant = section.get(plotArea.worldname + '.' + setting.getConstant());
+            if (constant == null || !constant.equals(section.get(this.worldname + '.' + setting.getConstant()))) {
                 return false;
             }
         }
@@ -269,7 +264,7 @@ public abstract class PlotArea {
             try {
                 String[] split = homeDefault.split(",");
                 this.DEFAULT_HOME = new PlotLoc(Integer.parseInt(split[0]), Integer.parseInt(split[1]));
-            } catch (NumberFormatException e) {
+            } catch (NumberFormatException ignored) {
                 this.DEFAULT_HOME = null;
             }
         }
@@ -283,7 +278,7 @@ public abstract class PlotArea {
                 Set<String> keys = section.getKeys(false);
                 for (String key : keys) {
                     if (!"default".equals(key)) {
-                        flags.add(key + ";" + section.get(key));
+                        flags.add(key + ';' + section.get(key));
                     }
                 }
             }
@@ -475,8 +470,8 @@ public abstract class PlotArea {
         return myPlots;
     }
     
-    public Set<Plot> getPlots(UUID uuid) {
-        HashSet<Plot> myplots = new HashSet<>();
+    public Set<Plot> getPlots(final UUID uuid) {
+        final HashSet<Plot> myplots = new HashSet<>();
         for (Plot plot : getPlots()) {
             if (plot.isBasePlot()) {
                 if (plot.isOwner(uuid)) {
@@ -488,7 +483,7 @@ public abstract class PlotArea {
     }
     
     public Set<Plot> getPlots(PlotPlayer player) {
-        return player != null ? getPlots(player.getUUID()) : new HashSet<Plot>();
+        return getPlots(player.getUUID());
     }
     
     public Set<Plot> getPlotsAbs(PlotPlayer player) {
@@ -499,7 +494,7 @@ public abstract class PlotArea {
         int count = 0;
         if (!Settings.DONE_COUNTS_TOWARDS_LIMIT) {
             for (Plot plot : getPlotsAbs(uuid)) {
-                if (!plot.getFlags().containsKey("done")) {
+                if (!plot.hasFlag(Flags.DONE)) {
                     count++;
                 }
             }

Core/src/main/java/com/intellectualcrafters/plot/object/PlotId.java

@@ -42,7 +42,7 @@ public class PlotId {
         try {
             x = Integer.parseInt(parts[0]);
             y = Integer.parseInt(parts[1]);
-        } catch (NumberFormatException e) {
+        } catch (NumberFormatException ignored) {
             return null;
         }
         return new PlotId(x, y);

Core/src/main/java/com/intellectualcrafters/plot/object/PlotPlayer.java

@@ -4,6 +4,7 @@ import com.intellectualcrafters.plot.PS;
 import com.intellectualcrafters.plot.commands.RequiredType;
 import com.intellectualcrafters.plot.config.Settings;
 import com.intellectualcrafters.plot.database.DBFunc;
+import com.intellectualcrafters.plot.flag.Flags;
 import com.intellectualcrafters.plot.util.EventUtil;
 import com.intellectualcrafters.plot.util.ExpireManager;
 import com.intellectualcrafters.plot.util.Permissions;
@@ -145,7 +146,7 @@ public abstract class PlotPlayer implements CommandCaller {
             public void run(PlotArea value) {
                 if (!Settings.DONE_COUNTS_TOWARDS_LIMIT) {
                     for (Plot plot : value.getPlotsAbs(uuid)) {
-                        if (!plot.getFlags().containsKey("done")) {
+                        if (!plot.hasFlag(Flags.DONE)) {
                             count.incrementAndGet();
                         }
                     }

Core/src/main/java/com/intellectualcrafters/plot/util/ChunkManager.java

@@ -222,8 +222,7 @@ public abstract class ChunkManager {
                     int z = Integer.parseInt(split[2]);
                     ChunkLoc loc = new ChunkLoc(x, z);
                     chunks.add(loc);
-                } catch (NumberFormatException ignored) {
-                }
+                } catch (NumberFormatException ignored) {}
             }
         }
         return chunks;

Core/src/main/java/com/intellectualcrafters/plot/util/MainUtil.java

@@ -431,7 +431,7 @@ public class MainUtil {
         if (arg == null) {
             if (player == null) {
                 if (message) {
-                    MainUtil.sendMessage(player, C.NOT_VALID_PLOT_WORLD);
+                    PS.log(C.NOT_VALID_PLOT_WORLD);
                 }
                 return null;
             }

Core/src/main/java/com/intellectualcrafters/plot/util/ReflectionUtils.java

@@ -70,8 +70,7 @@ public class ReflectionUtils {
                 Object value = field.get(null);
                 try {
                     list.add((T) value);
-                } catch (ClassCastException ignored) {
-                }
+                } catch (ClassCastException ignored) {}
             }
         } catch (IllegalAccessException | IllegalArgumentException | SecurityException e) {
             e.printStackTrace();
@@ -92,14 +91,13 @@ public class ReflectionUtils {
     public static Class<?> getUtilClass(String name) {
         try {
             return Class.forName(name); //Try before 1.8 first
-        } catch (ClassNotFoundException ignored) {
+        } catch (ClassNotFoundException ignored) {}
         try {
             return Class.forName("net.minecraft.util." + name); //Not 1.8
-            } catch (ClassNotFoundException ignored2) {
+        } catch (ClassNotFoundException ignored) {
             return null;
         }
     }
-    }
 
     public static Object getHandle(Object wrapper) {
         Method getHandle = makeMethod(wrapper.getClass(), "getHandle");
@@ -112,8 +110,6 @@ public class ReflectionUtils {
             return clazz.getDeclaredMethod(methodName, paramaters);
         } catch (NoSuchMethodException ignored) {
             return null;
-        } catch (SecurityException ex) {
-            throw new RuntimeException(ex);
         }
     }
 
@@ -138,8 +134,6 @@ public class ReflectionUtils {
             return (Constructor<T>) clazz.getConstructor(paramaterTypes);
         } catch (NoSuchMethodException ignored) {
             return null;
-        } catch (SecurityException ex) {
-            throw new RuntimeException(ex);
         }
     }
 
@@ -162,8 +156,6 @@ public class ReflectionUtils {
             return clazz.getDeclaredField(name);
         } catch (NoSuchFieldException ignored) {
             return null;
-        } catch (SecurityException ex) {
-            throw new RuntimeException(ex);
         }
     }
 
@@ -187,7 +179,7 @@ public class ReflectionUtils {
         field.setAccessible(true);
         try {
             field.set(instance, value);
-        } catch (Exception ex) {
+        } catch (IllegalAccessException | IllegalArgumentException ex) {
             throw new RuntimeException(ex);
         }
     }
@@ -195,7 +187,7 @@ public class ReflectionUtils {
     public static Class<?> getClass(String name) {
         try {
             return Class.forName(name);
-        } catch (ClassNotFoundException ex) {
+        } catch (ClassNotFoundException ignored) {
             return null;
         }
     }
@@ -203,7 +195,7 @@ public class ReflectionUtils {
     public static <T> Class<? extends T> getClass(String name, Class<T> superClass) {
         try {
             return Class.forName(name).asSubclass(superClass);
-        } catch (ClassCastException | ClassNotFoundException ex) {
+        } catch (ClassCastException | ClassNotFoundException ignored) {
             return null;
         }
     }
@@ -212,21 +204,15 @@ public class ReflectionUtils {
      * Get class for name. Replace {nms} to net.minecraft.server.V*. Replace {cb} to org.bukkit.craftbukkit.V*. Replace
      * {nm} to net.minecraft
      *
-     * @param classes possible class paths
+     * @param className possible class paths
      *
      * @return RefClass object
      *
-     * @throws RuntimeException if no class found
+     * @throws ClassNotFoundException if no class found
      */
-    public static RefClass getRefClass(String... classes) throws RuntimeException {
-        for (String className : classes) {
-            try {
+    public static RefClass getRefClass(String className) throws ClassNotFoundException {
         className = className.replace("{cb}", preClassB).replace("{nms}", preClassM).replace("{nm}", "net.minecraft");
         return getRefClass(Class.forName(className));
-            } catch (ClassNotFoundException ignored) {
-            }
-        }
-        throw new RuntimeException("no class found");
     }
 
     /**
@@ -281,8 +267,7 @@ public class ReflectionUtils {
          *
          * @throws RuntimeException if method not found
          */
-        public RefMethod getMethod(String name, Object... types) {
-            try {
+        public RefMethod getMethod(String name, Object... types) throws NoSuchMethodException {
             Class[] classes = new Class[types.length];
             int i = 0;
             for (Object e : types) {
@@ -299,9 +284,6 @@ public class ReflectionUtils {
             } catch (NoSuchMethodException ignored) {
                 return new RefMethod(this.clazz.getDeclaredMethod(name, classes));
             }
-            } catch (NoSuchMethodException | SecurityException e) {
-                throw new RuntimeException(e);
-            }
         }
 
         /**
@@ -313,8 +295,7 @@ public class ReflectionUtils {
          *
          * @throws RuntimeException if constructor not found
          */
-        public RefConstructor getConstructor(Object... types) {
-            try {
+        public RefConstructor getConstructor(Object... types) throws NoSuchMethodException {
             Class[] classes = new Class[types.length];
             int i = 0;
             for (Object e : types) {
@@ -331,9 +312,6 @@ public class ReflectionUtils {
             } catch (NoSuchMethodException ignored) {
                 return new RefConstructor(this.clazz.getDeclaredConstructor(classes));
             }
-            } catch (NoSuchMethodException | SecurityException e) {
-                throw new RuntimeException(e);
-            }
         }
 
         /**
@@ -466,16 +444,12 @@ public class ReflectionUtils {
          *
          * @throws RuntimeException if field not found
          */
-        public RefField getField(String name) {
-            try {
+        public RefField getField(String name) throws NoSuchFieldException {
             try {
                 return new RefField(this.clazz.getField(name));
             } catch (NoSuchFieldException ignored) {
                 return new RefField(this.clazz.getDeclaredField(name));
             }
-            } catch (Exception e) {
-                throw new RuntimeException(e);
-            }
         }
 
         /**
@@ -570,7 +544,7 @@ public class ReflectionUtils {
         public Object call(Object... params) {
             try {
                 return this.method.invoke(null, params);
-            } catch (Exception e) {
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
                 throw new RuntimeException(e);
             }
         }

Core/src/main/java/com/intellectualcrafters/plot/util/UUIDHandlerImplementation.java

@@ -152,7 +152,7 @@ public abstract class UUIDHandlerImplementation {
                 }
                 return false;
             }
-        } catch (Exception e) {
+        } catch (Exception ignored) {
             BiMap<UUID, StringWrapper> inverse = this.uuidMap.inverse();
             if (inverse.containsKey(uuid)) {
                 if (this.uuidMap.containsKey(name)) {

Core/src/main/java/com/plotsquared/general/commands/Argument.java

@@ -10,8 +10,7 @@ public abstract class Argument<T> {
             Integer value = null;
             try {
                 value = java.lang.Integer.parseInt(in);
-            } catch (Exception ignored) {
-            }
+            } catch (Exception ignored) {}
             return value;
         }
     };

Core/src/main/java/com/plotsquared/general/commands/Command.java

@@ -298,8 +298,7 @@ public abstract class Command {
                     MainCommand.getInstance().help.execute(player, args, null, null);
                     return;
                 }
-            } catch (IllegalArgumentException ignored) {
-            }
+            } catch (IllegalArgumentException ignored) {}
             // Command recommendation
             MainUtil.sendMessage(player, C.NOT_VALID_SUBCOMMAND);
             List<Command> commands = getCommands(player);

Core/src/main/java/com/plotsquared/listener/PlotListener.java

@@ -43,7 +43,7 @@ public class PlotListener {
         pp.setMeta("lastplot", plot);
         EventUtil.manager.callEntry(pp, plot);
         if (plot.hasOwner()) {
-            HashMap<Flag<?>, Object> flags = FlagManager.getPlotFlags(plot);
+            Map<Flag<?>, Object> flags = FlagManager.getPlotFlags(plot);
             int size = flags.size();
             boolean titles = Settings.TITLES;
             final String greeting;
@@ -122,8 +122,7 @@ public class PlotListener {
                             try {
                                 pp.setMeta("music", loc);
                                 pp.playMusic(loc, id);
-                            } catch (Exception ignored) {
-                            }
+                            } catch (Exception ignored) {}
                         }
                     }
                 } else {

Core/src/main/java/com/plotsquared/listener/WESubscriber.java

@@ -84,8 +84,7 @@ public class WESubscriber {
                                 if (tool instanceof BrushTool) {
                                     hasMask = ((BrushTool) tool).getMask() != null;
                                 }
-                            } catch (Exception ignored) {
-                            }
+                            } catch (Exception ignored) {}
                         }
                         AbstractDelegateExtent extent = (AbstractDelegateExtent) event.getExtent();
                         ChangeSetExtent history = null;

Core/src/test/java/com/intellectualcrafters/plot/database/AbstractDBTEst.java

@@ -17,53 +17,37 @@ import java.util.UUID;
 
 public class AbstractDBTest implements AbstractDB {
 
-    @Override public void setOwner(Plot plot, UUID uuid) {
-    }
+    @Override public void setOwner(Plot plot, UUID uuid) {}
 
-    @Override public void createPlotsAndData(ArrayList<Plot> plots, Runnable whenDone) {
-    }
+    @Override public void createPlotsAndData(ArrayList<Plot> plots, Runnable whenDone) {}
 
-    @Override public void createPlot(Plot plot) {
-    }
+    @Override public void createPlot(Plot plot) {}
 
-    @Override public void createTables() {
-    }
+    @Override public void createTables() {}
 
-    @Override public void delete(Plot plot) {
-    }
+    @Override public void delete(Plot plot) {}
 
-    @Override public void deleteSettings(Plot plot) {
-    }
+    @Override public void deleteSettings(Plot plot) {}
 
-    @Override public void deleteHelpers(Plot plot) {
-    }
+    @Override public void deleteHelpers(Plot plot) {}
 
-    @Override public void deleteTrusted(Plot plot) {
-    }
+    @Override public void deleteTrusted(Plot plot) {}
 
-    @Override public void deleteDenied(Plot plot) {
-    }
+    @Override public void deleteDenied(Plot plot) {}
 
-    @Override public void deleteComments(Plot plot) {
-    }
+    @Override public void deleteComments(Plot plot) {}
 
-    @Override public void deleteRatings(Plot plot) {
-    }
+    @Override public void deleteRatings(Plot plot) {}
 
-    @Override public void delete(PlotCluster cluster) {
-    }
+    @Override public void delete(PlotCluster cluster) {}
 
-    @Override public void addPersistentMeta(UUID uuid, String key, byte[] meta, boolean delete) {
-    }
+    @Override public void addPersistentMeta(UUID uuid, String key, byte[] meta, boolean delete) {}
 
-    @Override public void removePersistentMeta(UUID uuid, String key) {
-    }
+    @Override public void removePersistentMeta(UUID uuid, String key) {}
 
-    @Override public void getPersistentMeta(UUID uuid, RunnableVal<Map<String, byte[]>> result) {
-    }
+    @Override public void getPersistentMeta(UUID uuid, RunnableVal<Map<String, byte[]>> result) {}
 
-    @Override public void createPlotSettings(int id, Plot plot) {
-    }
+    @Override public void createPlotSettings(int id, Plot plot) {}
 
     @Override public int getId(Plot plot) {
         return 0;
@@ -77,117 +61,83 @@ public class AbstractDBTest implements AbstractDB {
         return null;
     }
 
-    @Override public void validateAllPlots(Set<Plot> toValidate) {
-    }
+    @Override public void validateAllPlots(Set<Plot> toValidate) {}
 
     @Override public HashMap<String, Set<PlotCluster>> getClusters() {
         return null;
     }
 
-    @Override public void setMerged(Plot plot, boolean[] merged) {
-    }
+    @Override public void setMerged(Plot plot, boolean[] merged) {}
 
-    @Override public void swapPlots(Plot plot1, Plot plot2) {
-    }
+    @Override public void swapPlots(Plot plot1, Plot plot2) {}
 
-    @Override public void setFlags(Plot plot, HashMap<Flag<?>, Object> flags) {
-    }
+    @Override public void setFlags(Plot plot, HashMap<Flag<?>, Object> flags) {}
 
-    @Override public void setFlags(PlotCluster cluster, 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) {
-    }
+    @Override public void setAlias(Plot plot, String alias) {}
 
-    @Override public void purgeIds(Set<Integer> uniqueIds) {
-    }
+    @Override public void purgeIds(Set<Integer> uniqueIds) {}
 
-    @Override public void purge(PlotArea area, Set<PlotId> plotIds) {
-    }
+    @Override public void purge(PlotArea area, Set<PlotId> plotIds) {}
 
-    @Override public void setPosition(Plot plot, String position) {
-    }
+    @Override public void setPosition(Plot plot, String position) {}
 
-    @Override public void setPosition(PlotCluster cluster, String position) {
-    }
+    @Override public void setPosition(PlotCluster cluster, String position) {}
 
-    @Override public void removeTrusted(Plot plot, UUID uuid) {
-    }
+    @Override public void removeTrusted(Plot plot, UUID uuid) {}
 
-    @Override public void removeHelper(PlotCluster cluster, UUID uuid) {
-    }
+    @Override public void removeHelper(PlotCluster cluster, UUID uuid) {}
 
-    @Override public void removeMember(Plot plot, UUID uuid) {
-    }
+    @Override public void removeMember(Plot plot, UUID uuid) {}
 
-    @Override public void removeInvited(PlotCluster cluster, UUID uuid) {
-    }
+    @Override public void removeInvited(PlotCluster cluster, UUID uuid) {}
 
-    @Override public void setTrusted(Plot plot, UUID uuid) {
-    }
+    @Override public void setTrusted(Plot plot, UUID uuid) {}
 
-    @Override public void setHelper(PlotCluster cluster, UUID uuid) {
-    }
+    @Override public void setHelper(PlotCluster cluster, UUID uuid) {}
 
-    @Override public void setMember(Plot plot, UUID uuid) {
-    }
+    @Override public void setMember(Plot plot, UUID uuid) {}
 
-    @Override public void setInvited(PlotCluster cluster, UUID uuid) {
-    }
+    @Override public void setInvited(PlotCluster cluster, UUID uuid) {}
 
-    @Override public void removeDenied(Plot plot, UUID uuid) {
-    }
+    @Override public void removeDenied(Plot plot, UUID uuid) {}
 
-    @Override public void setDenied(Plot plot, UUID uuid) {
-    }
+    @Override public void setDenied(Plot plot, UUID uuid) {}
 
     @Override public HashMap<UUID, Integer> getRatings(Plot plot) {
         return null;
     }
 
-    @Override public void setRating(Plot plot, UUID rater, int value) {
-    }
+    @Override public void setRating(Plot plot, UUID rater, int value) {}
 
-    @Override public void removeComment(Plot plot, PlotComment comment) {
-    }
+    @Override public void removeComment(Plot plot, PlotComment comment) {}
 
-    @Override public void clearInbox(Plot plot, String inbox) {
-    }
+    @Override public void clearInbox(Plot plot, String inbox) {}
 
-    @Override public void setComment(Plot plot, PlotComment comment) {
-    }
+    @Override public void setComment(Plot plot, PlotComment comment) {}
 
-    @Override public void getComments(Plot plot, String inbox, RunnableVal<List<PlotComment>> whenDone) {
-    }
+    @Override public void getComments(Plot plot, String inbox, RunnableVal<List<PlotComment>> whenDone) {}
 
-    @Override public void createPlotAndSettings(Plot plot, Runnable whenDone) {
-    }
+    @Override public void createPlotAndSettings(Plot plot, Runnable whenDone) {}
 
-    @Override public void createCluster(PlotCluster cluster) {
-    }
+    @Override public void createCluster(PlotCluster cluster) {}
 
-    @Override public void resizeCluster(PlotCluster current, PlotId min, PlotId max) {
-    }
+    @Override public void resizeCluster(PlotCluster current, PlotId min, PlotId max) {}
 
-    @Override public void movePlot(Plot originalPlot, Plot newPlot) {
-    }
+    @Override public void movePlot(Plot originalPlot, Plot newPlot) {}
 
-    @Override public void replaceUUID(UUID old, UUID now) {
-    }
+    @Override public void replaceUUID(UUID old, UUID now) {}
 
     @Override public boolean deleteTables() {
         return false;
     }
 
-    @Override public void close() {
-    }
+    @Override public void close() {}
 
-    @Override public void replaceWorld(String oldWorld, String newWorld, PlotId min, PlotId max) {
-    }
+    @Override public void replaceWorld(String oldWorld, String newWorld, PlotId min, PlotId max) {}
 
-    @Override public void updateTables(int[] oldVersion) {
-    }
+    @Override public void updateTables(int[] oldVersion) {}
 }

Core/src/test/java/com/intellectualcrafters/plot/util/EventUtilTest.java

@@ -30,8 +30,7 @@ public class EventUtilTest extends EventUtil {
         return false;
     }
 
-    @Override public void callDelete(Plot plot) {
-    }
+    @Override public void callDelete(Plot plot) {}
 
     @Override public boolean callFlagAdd(Flag flag, Plot plot) {
         return true;
@@ -53,18 +52,13 @@ public class EventUtilTest extends EventUtil {
         return false;
     }
 
-    @Override public void callEntry(PlotPlayer player, Plot plot) {
-    }
+    @Override public void callEntry(PlotPlayer player, Plot plot) {}
 
-    @Override public void callLeave(PlotPlayer player, Plot plot) {
-    }
+    @Override public void callLeave(PlotPlayer player, Plot plot) {}
 
-    @Override public void callDenied(PlotPlayer initiator, Plot plot, UUID player, boolean added) {
-    }
+    @Override public void callDenied(PlotPlayer initiator, Plot plot, UUID player, boolean added) {}
 
-    @Override public void callTrusted(PlotPlayer initiator, Plot plot, UUID player, boolean added) {
-    }
+    @Override public void callTrusted(PlotPlayer initiator, Plot plot, UUID player, boolean added) {}
 
-    @Override public void callMember(PlotPlayer initiator, Plot plot, UUID player, boolean added) {
-    }
+    @Override public void callMember(PlotPlayer initiator, Plot plot, UUID player, boolean added) {}
 }

Sponge/src/main/java/com/plotsquared/sponge/generator/SpongeAugmentedGenerator.java

@@ -19,8 +19,7 @@ public class SpongeAugmentedGenerator implements GenerationPopulator {
     
     private static SpongeAugmentedGenerator generator;
 
-    private SpongeAugmentedGenerator() {
-    }
+    private SpongeAugmentedGenerator() {}
 
     public static SpongeAugmentedGenerator get(World world) {
         WorldGenerator wg = world.getWorldGenerator();

Sponge/src/main/java/com/plotsquared/sponge/util/SpongeUtil.java

@@ -145,7 +145,8 @@ public class SpongeUtil extends WorldUtil {
             PS.debug("Caching block id/data: Please wait...");
             stateArray = new BlockState[Character.MAX_VALUE];
             stateMap = new HashMap<>();
-            Method methodGetByCombinedId = ReflectionUtils.findMethod(Class.forName("net.minecraft.block.Block"), true, Class.forName("net.minecraft.block.state.IBlockState"), int.class);
+            Method methodGetByCombinedId = ReflectionUtils
+                    .findMethod(Class.forName("net.minecraft.block.Block"), true, Class.forName("net.minecraft.block.state.IBlockState"), int.class);
             for (int i = 0; i < Character.MAX_VALUE; i++) {
                 try {
                     BlockState state = (BlockState) methodGetByCombinedId.invoke(null, i);
@@ -159,7 +160,7 @@ public class SpongeUtil extends WorldUtil {
                 }
             }
             PS.debug("Done!");
-        } catch (Throwable e) {
+        } catch (ClassNotFoundException e) {
             e.printStackTrace();
         }
     }
@@ -304,8 +305,7 @@ public class SpongeUtil extends WorldUtil {
             StringComparison<PlotBlock> outer = new StringComparison<PlotBlock>();
             return outer.new ComparisonResult(match, block);
 
-        } catch (NumberFormatException ignored) {
-        }
+        } catch (NumberFormatException ignored) {}
         return null;
     }