If NMF can have midnight work, so can I

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

@@ -119,7 +119,7 @@ public final class BukkitMain extends JavaPlugin implements Listener, IPlotMain
 
         new PlotSquared(this, "Bukkit");
 
-        if (PlotSquared.get().IMP.getServerVersion()[1] < 13) {
+        if (PaperLib.getMinecraftVersion() < 13 && PaperLib.getMinecraftPatchVersion() < 2) {
             System.out.println(
                 "You can't use this version of PlotSquared on a server less than Minecraft 1.13.2.");
             System.out

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

@@ -932,10 +932,10 @@ import java.util.regex.Pattern;
         PlotPlayer plotPlayer = BukkitUtil.getPlayer(event.getPlayer());
         Location location = plotPlayer.getLocation();
         PlotArea area = location.getPlotArea();
-        if (area == null || (area.PLOT_CHAT == plotPlayer.getAttribute("chat"))) {
+        if (location.isPlotArea() || (area.PLOT_CHAT == plotPlayer.getAttribute("chat"))) {
             return;
         }
-        Plot plot = area.getPlot(location);
+        Plot plot = location.getPlot();
         if (plot == null) {
             return;
         }

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

@@ -14,6 +14,7 @@ import com.github.intellectualsites.plotsquared.plot.util.block.ScopedLocalBlock
 import com.sk89q.worldedit.bukkit.BukkitWorld;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.block.BaseBlock;
+import io.papermc.lib.PaperLib;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.World;
@@ -276,7 +277,7 @@ public class BukkitChunkManager extends ChunkManager {
                     }
                     final LocalBlockQueue queue = GlobalBlockQueue.IMP.getNewQueue(world, false);
                     if (xxb >= p1x && xxt <= p2x && zzb >= p1z && zzt <= p2z
-                        && PlotSquared.imp().getServerVersion()[1] == 13) {
+                        && PaperLib.getMinecraftVersion() == 13) {
                         AugmentedUtils
                             .bypass(ignoreAugment, () -> queue.regenChunkSafe(chunk.x, chunk.z));
                         continue;
@@ -391,7 +392,7 @@ public class BukkitChunkManager extends ChunkManager {
         return BukkitUtil.getWorld(world).getChunkAt(loc.x, loc.z).load(force);
     }
 
-    @SuppressWarnings("deprecation") @Override
+    @Override
     public void unloadChunk(final String world, final ChunkLoc loc, final boolean save,
         final boolean safe) {
         if (!PlotSquared.get().isMainThread(Thread.currentThread())) {

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

@@ -6,6 +6,7 @@ import com.github.intellectualsites.plotsquared.plot.object.PlotBlock;
 import com.github.intellectualsites.plotsquared.plot.object.StringPlotBlock;
 import com.github.intellectualsites.plotsquared.plot.util.LegacyMappings;
 import com.github.intellectualsites.plotsquared.plot.util.StringComparison;
+import io.papermc.lib.PaperLib;
 import lombok.AccessLevel;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
@@ -829,7 +830,7 @@ public final class BukkitLegacyMappings extends LegacyMappings {
         LegacyBlock(final int numericalId, final int dataValue, @NonNull final String legacyName,
             @NonNull final String newName, @NonNull final String new14Name) {
             this(numericalId, dataValue, legacyName,
-                PlotSquared.get().IMP.getServerVersion()[1] == 13 ? newName : new14Name);
+                PaperLib.getMinecraftVersion() == 13 ? newName : new14Name);
         }
 
         LegacyBlock(final int numericalId, @NonNull final String legacyName,

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

@@ -11,6 +11,7 @@ import com.github.intellectualsites.plotsquared.plot.util.StringComparison;
 import com.github.intellectualsites.plotsquared.plot.util.UUIDHandler;
 import com.github.intellectualsites.plotsquared.plot.util.WorldUtil;
 import com.sk89q.worldedit.bukkit.BukkitWorld;
+import io.papermc.lib.PaperLib;
 import lombok.NonNull;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
@@ -353,7 +354,7 @@ import java.util.Set;
             } else if (world.getBlockAt(x, y, z - 1).getType().isSolid()) {
                 facing = BlockFace.SOUTH;
             }
-            if (PlotSquared.get().IMP.getServerVersion()[1] == 13) {
+            if (PaperLib.getMinecraftVersion() == 13) {
                 block.setType(Material.valueOf("WALL_SIGN"), false);
             } else {
                 block.setType(Material.valueOf("OAK_WALL_SIGN"), false);

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

@@ -253,6 +253,9 @@ public class Auto extends SubCommand {
                         for (int j = start.y; j <= end.y; j++) {
                             Plot plot = plotarea.getPlotAbs(new PlotId(i, j));
                             boolean teleport = i == end.x && j == end.y;
+                            if (plot == null) {
+                                return false;
+                            }
                             plot.claim(player, teleport, null);
                         }
                     }

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

@@ -12,6 +12,7 @@ import com.github.intellectualsites.plotsquared.plot.util.block.LocalBlockQueue;
 import com.google.common.collect.Sets;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockTypes;
+
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
@@ -34,13 +35,13 @@ public class HybridPlotManager extends ClassicPlotManager {
         String dir = "schematics" + File.separator + "GEN_ROAD_SCHEMATIC" + File.separator
             + hybridPlotWorld.worldname + File.separator;
         try {
-            File sideroad =
+            File sideRoad =
                 MainUtil.getFile(PlotSquared.get().IMP.getDirectory(), dir + "sideroad.schem");
             String newDir = "schematics" + File.separator + "GEN_ROAD_SCHEMATIC" + File.separator
                 + "__TEMP_DIR__" + File.separator;
-            if (sideroad.exists()) {
+            if (sideRoad.exists()) {
                 files.add(new FileBytes(newDir + "sideroad.schem",
-                    Files.readAllBytes(sideroad.toPath())));
+                    Files.readAllBytes(sideRoad.toPath())));
             }
             File intersection =
                 MainUtil.getFile(PlotSquared.get().IMP.getDirectory(), "intersection.schem");

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

@@ -21,6 +21,7 @@ import com.google.common.collect.BiMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
 import com.sk89q.jnbt.CompoundTag;
+import org.jetbrains.annotations.NotNull;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -46,13 +47,14 @@ import java.util.stream.Collectors;
 public class Plot {
 
     private static final int MAX_HEIGHT = 256;
+
     /**
      * @deprecated raw access is deprecated
      */
     @Deprecated private static HashSet<Plot> connected_cache;
     private static HashSet<RegionWrapper> regions_cache;
 
-    private final PlotId id;
+    @NotNull private final PlotId id;
 
     /**
      * plot owner
@@ -62,10 +64,12 @@ public class Plot {
      * @deprecated
      */
     @Deprecated public UUID owner;
+
     /**
      * Has the plot changed since the last save cycle?
      */
     public boolean countsTowardsMax = true;
+
     /**
      * Represents whatever the database manager needs it to: <br>
      * - A value of -1 usually indicates the plot will not be stored in the DB<br>
@@ -74,23 +78,28 @@ public class Plot {
      * @deprecated magical
      */
     @Deprecated public int temp;
+
     /**
      * Plot creation timestamp (not accurate if the plot was created before this was implemented)<br>
      * - Milliseconds since the epoch<br>
      */
     private long timestamp;
+
     /**
      * List of trusted (with plot permissions).
      */
     private HashSet<UUID> trusted;
+
     /**
      * List of members users (with plot permissions).
      */
     private HashSet<UUID> members;
+
     /**
      * List of denied players.
      */
     private HashSet<UUID> denied;
+
     /**
      * External settings class.
      * - Please favor the methods over direct access to this class<br>
@@ -99,6 +108,7 @@ public class Plot {
     private PlotSettings settings;
 
     private PlotArea area;
+
     /**
      * Session only plot metadata (session is until the server stops)<br>
      * <br>
@@ -107,6 +117,7 @@ public class Plot {
      * @see FlagManager
      */
     private ConcurrentHashMap<String, Object> meta;
+
     /**
      * The cached origin plot.
      * - The origin plot is used for plot grouping and relational data
@@ -122,7 +133,7 @@ public class Plot {
      * @param owner the plot owner
      * @see Plot#getPlot(Location) for existing plots
      */
-    public Plot(PlotArea area, PlotId id, UUID owner) {
+    public Plot(PlotArea area, @NotNull PlotId id, UUID owner) {
         this.area = area;
         this.id = id;
         this.owner = owner;
@@ -136,7 +147,7 @@ public class Plot {
      * @param id the plot id
      * @see Plot#getPlot(Location) for existing plots
      */
-    public Plot(PlotArea area, PlotId id) {
+    public Plot(PlotArea area, @NotNull PlotId id) {
         this.area = area;
         this.id = id;
     }
@@ -152,7 +163,7 @@ public class Plot {
      * @param temp Represents whatever the database manager needs it to
      * @see Plot#getPlot(Location) for existing plots
      */
-    public Plot(PlotArea area, PlotId id, UUID owner, int temp) {
+    public Plot(PlotArea area, @NotNull PlotId id, UUID owner, int temp) {
         this.area = area;
         this.id = id;
         this.owner = owner;
@@ -166,10 +177,10 @@ public class Plot {
      * @param owner the plot owner
      * @param trusted the plot trusted players
      * @param denied the plot denied players
-     * @param merged  array giving merged plots
+     * @param merged an array giving merged plots
      * @see Plot#getPlot(Location) for existing plots
      */
-    public Plot(PlotId id, UUID owner, HashSet<UUID> trusted, HashSet<UUID> members,
+    public Plot(@NotNull PlotId id, UUID owner, HashSet<UUID> trusted, HashSet<UUID> members,
         HashSet<UUID> denied, String alias, BlockLoc position, Collection<Flag> flags,
         PlotArea area, boolean[] merged, long timestamp, int temp) {
         this.id = id;
@@ -194,7 +205,7 @@ public class Plot {
     /**
      * Gets a plot from a string e.g. [area];[id]
      *
-     * @param defaultArea If no area is specified
+     * @param defaultArea if no area is specified
      * @param string plot id/area + id
      * @return New or existing plot object
      */
@@ -452,7 +463,7 @@ public class Plot {
      *
      * @return the PlotId for this plot
      */
-    public PlotId getId() {
+    @NotNull public PlotId getId() {
         return this.id;
     }
 

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

@@ -635,7 +635,7 @@ public abstract class PlotArea {
         this.meta.put(key, value);
     }
 
-    @Nullable public <T> T getMeta(@Nullable final String key, @Nullable final T def) {
+    @NotNull public <T> T getMeta(@Nullable final String key, @NotNull final T def) {
         final Object v = getMeta(key);
         return v == null ? def : (T) v;
     }