Finalize DI stuff

Bukkit/build.gradle

@@ -101,13 +101,14 @@ shadowJar {
         include(dependency("com.sk89q:squirrelid:1.0.0-SNAPSHOT"))
         include(dependency("com.google.inject:guice:4.2.3"))
         include(dependency("com.google.inject.extensions:guice-assistedinject:4.2.3"))
+        include(dependency("javax.annotation:javax-annotation-api"))
     }
     relocate('net.kyori.text', 'com.plotsquared.formatting.text')
     relocate("io.papermc.lib", "com.plotsquared.bukkit.paperlib")
     relocate("org.bstats", "com.plotsquared.metrics")
     relocate('com.sk89q.squirrelid', 'com.plotsquared.squirrelid')
     relocate('org.khelekore.prtree', 'com.plotsquared.prtree')
-    relocate('com.google', 'com.plotsquared.google')
+    relocate('com.google.inject', 'com.plotsquared.google')
     archiveFileName = "${project.name}-${parent.version}.jar"
     destinationDirectory = file "../target"
 }

Bukkit/pom.xml

@@ -12,6 +12,12 @@
       <version>20200518</version>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>javax.annotation</groupId>
+      <artifactId>javax.annotation-api</artifactId>
+      <version>1.3.2</version>
+      <scope>compile</scope>
+    </dependency>
     <dependency>
       <groupId>org.bstats</groupId>
       <artifactId>bstats-bukkit</artifactId>

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

@@ -61,6 +61,7 @@ import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.backup.BackupManager;
 import com.plotsquared.core.command.WE_Anywhere;
 import com.plotsquared.core.components.ComponentPresetManager;
+import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ChatFormatter;
 import com.plotsquared.core.configuration.ConfigurationNode;
@@ -79,12 +80,14 @@ import com.plotsquared.core.inject.annotations.WorldFile;
 import com.plotsquared.core.inject.modules.PlotSquaredModule;
 import com.plotsquared.core.listener.PlotListener;
 import com.plotsquared.core.listener.WESubscriber;
+import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotAreaTerrainType;
 import com.plotsquared.core.plot.PlotAreaType;
 import com.plotsquared.core.plot.PlotId;
+import com.plotsquared.core.plot.comment.CommentManager;
 import com.plotsquared.core.plot.message.PlainChatManager;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.plot.world.SinglePlotArea;
@@ -111,7 +114,7 @@ import com.plotsquared.core.uuid.offline.OfflineModeUUIDService;
 import com.sk89q.worldedit.WorldEdit;
 import io.papermc.lib.PaperLib;
 import lombok.Getter;
-import lombok.NonNull;
+
 import org.bstats.bukkit.Metrics;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
@@ -129,8 +132,8 @@ import org.bukkit.metadata.FixedMetadataValue;
 import org.bukkit.metadata.MetadataValue;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.io.File;
 import java.lang.reflect.Method;
@@ -234,8 +237,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 
         // We create the injector after PlotSquared has been initialized, so that we have access
         // to generated instances and settings
-        this.injector = Guice.createInjector(Stage.PRODUCTION, new PlotSquaredModule(),
+        this.injector = Guice.createInjector(Stage.PRODUCTION, new WorldManagerModule(), new PlotSquaredModule(),
-            new BukkitModule(this), new BackupModule(), new WorldManagerModule());
+            new BukkitModule(this), new BackupModule());
         this.injector.injectMembers(this);
 
         if (PremiumVerification.isPremium() && Settings.Enabled_Components.UPDATE_NOTIFICATIONS) {
@@ -253,6 +256,33 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
             PlotSquared.log(Captions.PREFIX + "&6Couldn't verify purchase :(");
         }
 
+        // Database
+        if (Settings.Enabled_Components.DATABASE) {
+            plotSquared.setupDatabase();
+        }
+
+        // Check if we need to convert old flag values, etc
+        if (!plotSquared.getConfigurationVersion().equalsIgnoreCase("v5")) {
+            // Perform upgrade
+            if (DBFunc.dbManager.convertFlags()) {
+                log(Captions.PREFIX.getTranslated() + "Flags were converted successfully!");
+                // Update the config version
+                try {
+                    plotSquared.setConfigurationVersion("v5");
+                } catch (final Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        // Comments
+        CommentManager.registerDefaultInboxes();
+
+        plotSquared.startExpiryTasks();
+
+        // This is getting removed so I won't even bother migrating it
+        ChatManager.manager = this.initChatManager();
+
         // Do stuff that was previously done in PlotSquared
         // Kill entities
         if (Settings.Enabled_Components.KILL_ROAD_MOBS
@@ -302,8 +332,14 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         // Economy
         if (Settings.Enabled_Components.ECONOMY) {
             TaskManager.runTask(() -> {
-                getInjector().getInstance(PermHandler.class).init();
+                final PermHandler permHandler = getInjector().getInstance(PermHandler.class);
-                getInjector().getInstance(EconHandler.class).init();
+                if (permHandler != null) {
+                    permHandler.init();
+                }
+                final EconHandler econHandler = getInjector().getInstance(EconHandler.class);
+                if (econHandler != null) {
+                    econHandler.init();
+                }
             });
         }
 
@@ -501,6 +537,10 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 getLogger().warning("Failed to clean up players: " + e.getMessage());
             }
         }, 100L, 100L);
+
+        PlotSquared.log(Captions.PREFIX + CaptionUtility
+            .format(ConsolePlayer.getConsole(), Captions.ENABLED.getTranslated(),
+                this.getPluginName()));
     }
 
     private void unload() {
@@ -582,8 +622,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         }
     }
 
-    private void startUuidCaching(@NotNull final SQLiteUUIDService sqLiteUUIDService,
+    private void startUuidCaching(@Nonnull final SQLiteUUIDService sqLiteUUIDService,
-        @NotNull final CacheUUIDService cacheUUIDService) {
+        @Nonnull final CacheUUIDService cacheUUIDService) {
         // Load all uuids into a big chunky boi queue
         final Queue<UUID> uuidQueue = new LinkedBlockingQueue<>();
         PlotSquared.get().forEachPlotRaw(plot -> {
@@ -658,7 +698,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         Bukkit.getScheduler().cancelTasks(this);
     }
 
-    @Override public void log(@NonNull String message) {
+    @Override public void log(@Nonnull String message) {
         try {
             message = Captions.color(message);
             if (!Settings.Chat.CONSOLE_COLOR) {
@@ -948,7 +988,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
     }
 
     @Override @Nullable
-    public final ChunkGenerator getDefaultWorldGenerator(@NotNull final String worldName,
+    public final ChunkGenerator getDefaultWorldGenerator(@Nonnull final String worldName,
         final String id) {
         final IndependentPlotGenerator result;
         if (id != null && id.equalsIgnoreCase("single")) {
@@ -962,7 +1002,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         return (ChunkGenerator) result.specify(worldName);
     }
 
-    @Override @Nullable public GeneratorWrapper<?> getGenerator(@NonNull final String world,
+    @Override @Nullable public GeneratorWrapper<?> getGenerator(@Nonnull final String world,
         @Nullable final String name) {
         if (name == null) {
             return null;
@@ -1011,11 +1051,11 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 "WorldEdit"));
     }
 
-    @Override public void unregister(@NonNull final PlotPlayer player) {
+    @Override public void unregister(@Nonnull final PlotPlayer player) {
         BukkitUtil.removePlayer(player.getUUID());
     }
 
-    @Override public void setGenerator(@NonNull final String worldName) {
+    @Override public void setGenerator(@Nonnull final String worldName) {
         World world = BukkitUtil.getWorld(worldName);
         if (world == null) {
             // create world
@@ -1098,7 +1138,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
     }
 
     @Override public GeneratorWrapper<?> wrapPlotGenerator(@Nullable final String world,
-        @NonNull final IndependentPlotGenerator generator) {
+        @Nonnull final IndependentPlotGenerator generator) {
         return new BukkitPlotGenerator(world, generator, this.plotAreaManager);
     }
 
@@ -1112,7 +1152,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         return names;
     }
 
-    @Override @NotNull public com.plotsquared.core.location.World<?> getPlatformWorld(@NotNull final String worldName) {
+    @Override public com.plotsquared.core.location.World<?> getPlatformWorld(@Nonnull final String worldName) {
         return BukkitWorld.of(worldName);
     }
 

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

@@ -26,11 +26,12 @@
 package com.plotsquared.bukkit.entity;
 
 import lombok.Getter;
-import lombok.NonNull;
+
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
+import javax.annotation.Nonnull;
 
 @Getter
 public abstract class EntityWrapper {
@@ -43,7 +44,7 @@ public abstract class EntityWrapper {
     public double y;
     public double z;
 
-    EntityWrapper(@NonNull final Entity entity) {
+    EntityWrapper(@Nonnull final Entity entity) {
         this.entity = entity;
         this.type = entity.getType();
 

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

@@ -25,17 +25,17 @@
  */
 package com.plotsquared.bukkit.generator;
 
+import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.generator.IndependentPlotGenerator;
 import com.plotsquared.core.location.ChunkWrapper;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.world.PlotAreaManager;
-import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.queue.LocalBlockQueue;
 import com.plotsquared.core.queue.ScopedLocalBlockQueue;
 import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.generator.BlockPopulator;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Random;
 
@@ -46,17 +46,18 @@ final class BlockStatePopulator extends BlockPopulator {
 
     private LocalBlockQueue queue;
 
-    public BlockStatePopulator(@NotNull final IndependentPlotGenerator plotGenerator,
+    public BlockStatePopulator(@Nonnull final IndependentPlotGenerator plotGenerator,
-        @NotNull final PlotAreaManager plotAreaManager) {
+        @Nonnull final PlotAreaManager plotAreaManager) {
         this.plotGenerator = plotGenerator;
         this.plotAreaManager = plotAreaManager;
     }
 
     @Override
-    public void populate(@NotNull final World world, @NotNull final Random random,
+    public void populate(@Nonnull final World world, @Nonnull final Random random,
-        @NotNull final Chunk source) {
+        @Nonnull final Chunk source) {
         if (this.queue == null) {
-            this.queue = GlobalBlockQueue.IMP.getNewQueue(world.getName(), false);
+            this.queue = PlotSquared.platform().getGlobalBlockQueue()
+                .getNewQueue(world.getName(), false);
         }
         final PlotArea area = this.plotAreaManager.getPlotArea(world.getName(), null);
         if (area == null) {

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

@@ -29,7 +29,7 @@ import com.plotsquared.core.generator.AugmentedUtils;
 import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.generator.BlockPopulator;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Random;
 
@@ -51,7 +51,7 @@ public class BukkitAugmentedGenerator extends BlockPopulator {
     }
 
     @Override
-    public void populate(@NotNull World world, @NotNull Random random, @NotNull Chunk source) {
+    public void populate(@Nonnull World world, @Nonnull Random random, @Nonnull Chunk source) {
         AugmentedUtils.generate(source, world.getName(), source.getX(), source.getZ(), null);
     }
 }

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

@@ -43,7 +43,7 @@ import org.bukkit.World;
 import org.bukkit.block.Biome;
 import org.bukkit.generator.BlockPopulator;
 import org.bukkit.generator.ChunkGenerator;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -64,9 +64,9 @@ public class BukkitPlotGenerator extends ChunkGenerator
 
     @Getter private final String levelName;
 
-    public BukkitPlotGenerator(@NotNull final  String name,
+    public BukkitPlotGenerator(@Nonnull final  String name,
-                               @NotNull final IndependentPlotGenerator generator,
+                               @Nonnull final IndependentPlotGenerator generator,
-                               @NotNull final PlotAreaManager plotAreaManager) {
+                               @Nonnull final PlotAreaManager plotAreaManager) {
         this.plotAreaManager = plotAreaManager;
         this.levelName = name;
         this.plotGenerator = generator;
@@ -77,7 +77,7 @@ public class BukkitPlotGenerator extends ChunkGenerator
         MainUtil.initCache();
     }
 
-    public BukkitPlotGenerator(final String world, final ChunkGenerator cg, @NotNull final PlotAreaManager plotAreaManager) {
+    public BukkitPlotGenerator(final String world, final ChunkGenerator cg, @Nonnull final PlotAreaManager plotAreaManager) {
         if (cg instanceof BukkitPlotGenerator) {
             throw new IllegalArgumentException("ChunkGenerator: " + cg.getClass().getName()
                 + " is already a BukkitPlotGenerator!");
@@ -106,7 +106,7 @@ public class BukkitPlotGenerator extends ChunkGenerator
         return this.platformGenerator;
     }
 
-    @Override @NotNull public List<BlockPopulator> getDefaultPopulators(@NotNull World world) {
+    @Override @Nonnull public List<BlockPopulator> getDefaultPopulators(@Nonnull World world) {
         try {
             if (!this.loaded) {
                 String name = world.getName();
@@ -150,9 +150,9 @@ public class BukkitPlotGenerator extends ChunkGenerator
         return toAdd;
     }
 
-    @Override @NotNull
+    @Override @Nonnull
-    public ChunkData generateChunkData(@NotNull World world, @NotNull Random random, int x, int z,
+    public ChunkData generateChunkData(@Nonnull World world, @Nonnull Random random, int x, int z,
-        @NotNull BiomeGrid biome) {
+        @Nonnull BiomeGrid biome) {
 
         GenChunk result = new GenChunk();
         if (this.getPlotGenerator() instanceof SingleWorldGenerator) {
@@ -216,7 +216,7 @@ public class BukkitPlotGenerator extends ChunkGenerator
         ChunkManager.postProcessChunk(loc, result);
     }
 
-    @Override public boolean canSpawn(@NotNull final World world, final int x, final int z) {
+    @Override public boolean canSpawn(@Nonnull final World world, final int x, final int z) {
         return true;
     }
 

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

@@ -38,7 +38,7 @@ import org.bukkit.World;
 import org.bukkit.block.Biome;
 import org.bukkit.generator.BlockPopulator;
 import org.bukkit.generator.ChunkGenerator;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 import org.jetbrains.annotations.Range;
 
 import java.util.Random;
@@ -74,21 +74,21 @@ final class DelegatePlotGenerator extends IndependentPlotGenerator {
             ChunkGenerator.BiomeGrid grid = new ChunkGenerator.BiomeGrid() {
                 @Override
                 public void setBiome(@Range(from = 0, to = 15) int x,
-                    @Range(from = 0, to = 15) int z, @NotNull Biome biome) {
+                    @Range(from = 0, to = 15) int z, @Nonnull Biome biome) {
                     result.setBiome(x, z, BukkitAdapter.adapt(biome));
                 }
 
                 //do not annotate with Override until we discontinue support for 1.4.4
-                public void setBiome(int x, int y, int z, @NotNull Biome biome) {
+                public void setBiome(int x, int y, int z, @Nonnull Biome biome) {
                     result.setBiome(x, z, BukkitAdapter.adapt(biome));
 
                 }
 
-                @Override @NotNull public Biome getBiome(int x, int z) {
+                @Override @Nonnull public Biome getBiome(int x, int z) {
                     return Biome.FOREST;
                 }
 
-                @Override public @NotNull Biome getBiome(int x, int y, int z) {
+                @Override public @Nonnull Biome getBiome(int x, int y, int z) {
                     return Biome.FOREST;
                 }
             };

Bukkit/src/main/java/com/plotsquared/bukkit/inject/BukkitModule.java

@@ -27,6 +27,7 @@ package com.plotsquared.bukkit.inject;
 
 import com.google.inject.AbstractModule;
 import com.google.inject.assistedinject.FactoryModuleBuilder;
+import com.google.inject.util.Providers;
 import com.plotsquared.bukkit.BukkitPlatform;
 import com.plotsquared.bukkit.player.BukkitPlayerManager;
 import com.plotsquared.bukkit.queue.BukkitLocalQueue;
@@ -65,7 +66,7 @@ import lombok.RequiredArgsConstructor;
 import org.bukkit.Bukkit;
 import org.bukkit.command.ConsoleCommandSender;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @RequiredArgsConstructor public class BukkitModule extends AbstractModule {
 
@@ -77,7 +78,7 @@ import org.jetbrains.annotations.NotNull;
         bind(PlotPlatform.class).toInstance(bukkitPlatform);
         bind(IndependentPlotGenerator.class).annotatedWith(DefaultGenerator.class).to(HybridGen.class);
         // Console actor
-        @NotNull ConsoleCommandSender console = Bukkit.getServer().getConsoleSender();
+        @Nonnull ConsoleCommandSender console = Bukkit.getServer().getConsoleSender();
         WorldEditPlugin wePlugin = ((WorldEditPlugin) Bukkit.getPluginManager().getPlugin("WorldEdit"));
         bind(Actor.class).annotatedWith(ConsoleActor.class).toInstance(wePlugin.wrapCommandSender(console));
         bind(InventoryUtil.class).to(BukkitInventoryUtil.class);
@@ -88,8 +89,7 @@ import org.jetbrains.annotations.NotNull;
         bind(ChunkManager.class).to(BukkitChunkManager.class);
         bind(RegionManager.class).to(BukkitRegionManager.class);
         bind(SchematicHandler.class).to(BukkitSchematicHandler.class);
-        bind(PermHandler.class).to(BukkitPermHandler.class);
+        this.setupVault();
-        bind(EconHandler.class).to(BukkitEconHandler.class);
         if (Settings.Enabled_Components.WORLDS) {
             bind(PlotAreaManager.class).to(SinglePlotAreaManager.class);
         } else {
@@ -98,4 +98,25 @@ import org.jetbrains.annotations.NotNull;
         install(new FactoryModuleBuilder().build(HybridPlotWorldFactory.class));
     }
 
+    private void setupVault() {
+        if (Bukkit.getPluginManager().isPluginEnabled("Vault")) {
+            BukkitPermHandler bukkitPermHandler = null;
+            try {
+                bukkitPermHandler = new BukkitPermHandler();
+                bind(PermHandler.class).toInstance(bukkitPermHandler);
+            } catch (final Exception ignored) {
+                bind(PermHandler.class).toProvider(Providers.of(null));
+            }
+            try {
+                final BukkitEconHandler bukkitEconHandler = new BukkitEconHandler(bukkitPermHandler);
+                bind(EconHandler.class).toInstance(bukkitEconHandler);
+            } catch (final Exception ignored) {
+                bind(EconHandler.class).toProvider(Providers.of(null));
+            }
+        } else {
+            bind(PermHandler.class).toProvider(Providers.of(null));
+            bind(EconHandler.class).toProvider(Providers.of(null));
+        }
+    }
+
 }

Bukkit/src/main/java/com/plotsquared/bukkit/inject/WorldManagerModule.java

@@ -26,21 +26,26 @@
 package com.plotsquared.bukkit.inject;
 
 import com.google.inject.AbstractModule;
+import com.google.inject.Provides;
+import com.google.inject.Singleton;
 import com.plotsquared.bukkit.managers.BukkitWorldManager;
 import com.plotsquared.bukkit.managers.HyperverseWorldManager;
 import com.plotsquared.bukkit.managers.MultiverseWorldManager;
 import com.plotsquared.core.util.PlatformWorldManager;
 import org.bukkit.Bukkit;
+import org.bukkit.World;
 
 public class WorldManagerModule extends AbstractModule {
 
-    @Override protected void configure() {
+    @Provides
+    @Singleton
+    PlatformWorldManager<World> provideWorldManager() {
         if (Bukkit.getPluginManager().getPlugin("Hyperverse") != null) {
-            bind(PlatformWorldManager.class).to(HyperverseWorldManager.class);
+            return new HyperverseWorldManager();
         } else if (Bukkit.getPluginManager().getPlugin("Multiverse-Core") != null) {
-            bind(PlatformWorldManager.class).to(MultiverseWorldManager.class);
+            return new MultiverseWorldManager();
         } else {
-            bind(PlatformWorldManager.class).to(BukkitWorldManager.class);
+            return new BukkitWorldManager();
         }
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/listener/ChunkListener.java

@@ -53,7 +53,7 @@ import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.event.entity.ItemSpawnEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.lang.reflect.Method;
 import java.util.HashSet;
@@ -70,7 +70,7 @@ public class ChunkListener implements Listener {
     private Chunk lastChunk;
     private boolean ignoreUnload = false;
     
-    @Inject public ChunkListener(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public ChunkListener(@Nonnull final PlotAreaManager plotAreaManager) {
         this.plotAreaManager = plotAreaManager;
         if (Settings.Chunk_Processor.AUTO_TRIM) {
             try {

Bukkit/src/main/java/com/plotsquared/bukkit/listener/EntitySpawnListener.java

@@ -53,7 +53,7 @@ import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.metadata.FixedMetadataValue;
 import org.bukkit.metadata.MetadataValue;
 import org.bukkit.plugin.Plugin;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.List;
 
@@ -65,7 +65,7 @@ public class EntitySpawnListener implements Listener {
     private static String areaName = null;
 
     public static void testNether(final Entity entity) {
-        @NotNull World world = entity.getWorld();
+        @Nonnull World world = entity.getWorld();
         if (world.getEnvironment() != World.Environment.NETHER
             && world.getEnvironment() != World.Environment.THE_END) {
             return;
@@ -74,7 +74,7 @@ public class EntitySpawnListener implements Listener {
     }
 
     public static void testCreate(final Entity entity) {
-        @NotNull World world = entity.getWorld();
+        @Nonnull World world = entity.getWorld();
         if (areaName == world.getName()) {
         } else {
             areaName = world.getName();
@@ -87,7 +87,7 @@ public class EntitySpawnListener implements Listener {
     }
 
     public static void test(Entity entity) {
-        @NotNull World world = entity.getWorld();
+        @Nonnull World world = entity.getWorld();
         List<MetadataValue> meta = entity.getMetadata(KEY);
         if (meta.isEmpty()) {
             if (PlotSquared.get().getPlotAreaManager().hasPlotArea(world.getName())) {
@@ -167,7 +167,7 @@ public class EntitySpawnListener implements Listener {
     }
 
     @EventHandler public void onChunkLoad(ChunkLoadEvent event) {
-        @NotNull Chunk chunk = event.getChunk();
+        @Nonnull Chunk chunk = event.getChunk();
         for (final Entity entity : chunk.getEntities()) {
             testCreate(entity);
         }

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PaperListener.java

@@ -59,7 +59,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.projectiles.ProjectileSource;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -76,7 +76,7 @@ public class PaperListener implements Listener {
     private final PlotAreaManager plotAreaManager;
     private Chunk lastChunk;
 
-    @Inject public PaperListener(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public PaperListener(@Nonnull final PlotAreaManager plotAreaManager) {
         this.plotAreaManager = plotAreaManager;
     }
     

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PlayerEvents.java

@@ -215,7 +215,7 @@ import org.bukkit.plugin.Plugin;
 import org.bukkit.projectiles.BlockProjectileSource;
 import org.bukkit.projectiles.ProjectileSource;
 import org.bukkit.util.Vector;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.lang.reflect.Field;
 import java.util.ArrayList;
@@ -247,11 +247,11 @@ import java.util.regex.Pattern;
     private PlayerMoveEvent moveTmp;
     private String internalVersion;
 
-    @Inject public PlayerEvents(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public PlayerEvents(@Nonnull final PlotAreaManager plotAreaManager,
-                                @NotNull final EventDispatcher eventDispatcher,
+                                @Nonnull final EventDispatcher eventDispatcher,
-                                @NotNull final WorldEdit worldEdit,
+                                @Nonnull final WorldEdit worldEdit,
-                                @NotNull final WorldUtil worldUtil) {
+                                @Nonnull final WorldUtil worldUtil) {
-        super(eventDispatcher, worldUtil);
+        super(eventDispatcher);
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
         this.worldEdit = worldEdit;

Bukkit/src/main/java/com/plotsquared/bukkit/listener/WorldEvents.java

@@ -37,14 +37,14 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.world.WorldInitEvent;
 import org.bukkit.generator.ChunkGenerator;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @SuppressWarnings("unused")
 public class WorldEvents implements Listener {
 
     private final PlotAreaManager plotAreaManager;
 
-    @Inject public WorldEvents(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public WorldEvents(@Nonnull final PlotAreaManager plotAreaManager) {
         this.plotAreaManager = plotAreaManager;
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/managers/BukkitWorldManager.java

@@ -32,8 +32,8 @@ import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.WorldCreator;
 import org.bukkit.WorldType;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.io.File;
 import java.io.IOException;
@@ -51,7 +51,7 @@ import java.util.List;
     }
 
     @Override @Nullable
-    public World handleWorldCreation(@NotNull String worldName, @Nullable String generator) {
+    public World handleWorldCreation(@Nonnull String worldName, @Nullable String generator) {
         this.setGenerator(worldName, generator);
         final WorldCreator wc = new WorldCreator(worldName);
         wc.environment(World.Environment.NORMAL);

Bukkit/src/main/java/com/plotsquared/bukkit/managers/HyperverseWorldManager.java

@@ -27,8 +27,8 @@ package com.plotsquared.bukkit.managers;
 
 import com.google.inject.Singleton;
 import org.bukkit.World;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 import se.hyperver.hyperverse.Hyperverse;
 import se.hyperver.hyperverse.world.WorldConfiguration;
 import se.hyperver.hyperverse.world.WorldConfigurationBuilder;
@@ -42,7 +42,7 @@ import se.hyperver.hyperverse.world.WorldType;
 @Singleton public class HyperverseWorldManager extends BukkitWorldManager {
 
     @Override @Nullable
-    public World handleWorldCreation(@NotNull String worldName, @Nullable String generator) {
+    public World handleWorldCreation(@Nonnull String worldName, @Nullable String generator) {
         // First let Bukkit register the world
         this.setGenerator(worldName, generator);
         // Create the world

Bukkit/src/main/java/com/plotsquared/bukkit/managers/MultiverseWorldManager.java

@@ -28,8 +28,8 @@ package com.plotsquared.bukkit.managers;
 import com.google.inject.Singleton;
 import org.bukkit.Bukkit;
 import org.bukkit.World;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 /**
  * Multiverse specific manager that informs Multiverse of
@@ -38,7 +38,7 @@ import org.jetbrains.annotations.Nullable;
 @Singleton public class MultiverseWorldManager extends BukkitWorldManager {
 
     @Override @Nullable
-    public World handleWorldCreation(@NotNull final String worldName, @Nullable final String generator) {
+    public World handleWorldCreation(@Nonnull final String worldName, @Nullable final String generator) {
         // First let Bukkit register the world
         this.setGenerator(worldName, generator);
         // Then we send the console command

Bukkit/src/main/java/com/plotsquared/bukkit/player/BukkitOfflinePlayer.java

@@ -27,7 +27,7 @@ package com.plotsquared.bukkit.player;
 
 import com.plotsquared.core.player.OfflinePlotPlayer;
 import org.bukkit.OfflinePlayer;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.UUID;
 
@@ -45,7 +45,7 @@ public class BukkitOfflinePlayer implements OfflinePlotPlayer {
         this.player = player;
     }
 
-    @NotNull @Override public UUID getUUID() {
+    @Nonnull @Override public UUID getUUID() {
         return this.player.getUniqueId();
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/player/BukkitPlayer.java

@@ -53,8 +53,8 @@ import org.bukkit.event.EventException;
 import org.bukkit.event.player.PlayerTeleportEvent;
 import org.bukkit.permissions.PermissionAttachmentInfo;
 import org.bukkit.plugin.RegisteredListener;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.Arrays;
 import java.util.Set;
@@ -82,18 +82,18 @@ public class BukkitPlayer extends PlotPlayer<Player> {
      *
      * @param player Bukkit player instance
      */
-    public BukkitPlayer(@NotNull final PlotAreaManager plotAreaManager, @NotNull final EventDispatcher eventDispatcher,
+    public BukkitPlayer(@Nonnull final PlotAreaManager plotAreaManager, @Nonnull final EventDispatcher eventDispatcher,
-        @NotNull final Player player, @Nullable final EconHandler econHandler) {
+        @Nonnull final Player player, @Nullable final EconHandler econHandler) {
         this(plotAreaManager, eventDispatcher, player, false, econHandler);
     }
 
-    public BukkitPlayer(@NotNull final PlotAreaManager plotAreaManager, @NotNull final EventDispatcher eventDispatcher,
+    public BukkitPlayer(@Nonnull final PlotAreaManager plotAreaManager, @Nonnull final EventDispatcher eventDispatcher,
-        @NotNull final Player player, final boolean offline, @Nullable final EconHandler econHandler) {
+        @Nonnull final Player player, final boolean offline, @Nullable final EconHandler econHandler) {
         this(plotAreaManager, eventDispatcher, player, offline, true, econHandler);
     }
 
-    public BukkitPlayer(@NotNull final PlotAreaManager plotAreaManager, @NotNull final
+    public BukkitPlayer(@Nonnull final PlotAreaManager plotAreaManager, @Nonnull final
-        EventDispatcher eventDispatcher, @NotNull final Player player, final boolean offline,
+        EventDispatcher eventDispatcher, @Nonnull final Player player, final boolean offline,
         final boolean realPlayer, @Nullable final EconHandler econHandler) {
         super(plotAreaManager, eventDispatcher, econHandler);
         this.player = player;
@@ -112,12 +112,12 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         return this.player;
     }
 
-    @NotNull @Override public Location getLocation() {
+    @Nonnull @Override public Location getLocation() {
         final Location location = super.getLocation();
         return location == null ? BukkitUtil.getLocation(this.player) : location;
     }
 
-    @NotNull @Override public UUID getUUID() {
+    @Nonnull @Override public UUID getUUID() {
         if (Settings.UUID.OFFLINE) {
             if (Settings.UUID.FORCE_LOWERCASE) {
                 return UUID.nameUUIDFromBytes(("OfflinePlayer:" +
@@ -134,7 +134,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         return this.player.getLastPlayed();
     }
 
-    @Override public boolean canTeleport(@NotNull final Location location) {
+    @Override public boolean canTeleport(@Nonnull final Location location) {
         final org.bukkit.Location to = BukkitUtil.getLocation(location);
         final org.bukkit.Location from = player.getLocation();
         PlayerTeleportEvent event = new PlayerTeleportEvent(player, from, to);
@@ -152,7 +152,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         player.sendTitle(title, subtitle, fadeIn, stay, fadeOut);
     }
 
-    private void callEvent(@NotNull final Event event) {
+    private void callEvent(@Nonnull final Event event) {
         final RegisteredListener[] listeners = event.getHandlers().getRegisteredListeners();
         for (final RegisteredListener listener : listeners) {
             if (listener.getPlugin().getName().equals(PlotSquared.platform().getPluginName())) {
@@ -248,7 +248,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
     }
 
     @Override
-    public void teleport(@NotNull final Location location, @NotNull final TeleportCause cause) {
+    public void teleport(@Nonnull final Location location, @Nonnull final TeleportCause cause) {
         if (Math.abs(location.getX()) >= 30000000 || Math.abs(location.getZ()) >= 30000000) {
             return;
         }
@@ -279,7 +279,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         return BukkitUtil.getLocationFull(this.player);
     }
 
-    @Override public void setWeather(@NotNull final PlotWeather weather) {
+    @Override public void setWeather(@Nonnull final PlotWeather weather) {
         switch (weather) {
             case CLEAR:
                 this.player.setPlayerWeather(WeatherType.CLEAR);
@@ -294,7 +294,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         }
     }
 
-    @NotNull @Override public com.sk89q.worldedit.world.gamemode.GameMode getGameMode() {
+    @Override public com.sk89q.worldedit.world.gamemode.GameMode getGameMode() {
         switch (this.player.getGameMode()) {
             case ADVENTURE:
                 return ADVENTURE;
@@ -309,7 +309,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
     }
 
     @Override
-    public void setGameMode(@NotNull final com.sk89q.worldedit.world.gamemode.GameMode gameMode) {
+    public void setGameMode(final com.sk89q.worldedit.world.gamemode.GameMode gameMode) {
         if (ADVENTURE.equals(gameMode)) {
             this.player.setGameMode(GameMode.ADVENTURE);
         } else if (CREATIVE.equals(gameMode)) {
@@ -337,7 +337,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
         this.player.setAllowFlight(fly);
     }
 
-    @Override public void playMusic(@NotNull final Location location, @NotNull final ItemType id) {
+    @Override public void playMusic(@Nonnull final Location location, @Nonnull final ItemType id) {
         if (id == ItemTypes.AIR) {
             // Let's just stop all the discs because why not?
             for (final Sound sound : Arrays.stream(Sound.values())
@@ -367,7 +367,7 @@ public class BukkitPlayer extends PlotPlayer<Player> {
     }
 
 
-    public PlayerTeleportEvent.TeleportCause getTeleportCause(@NotNull final TeleportCause cause) {
+    public PlayerTeleportEvent.TeleportCause getTeleportCause(@Nonnull final TeleportCause cause) {
         switch (cause) {
             case COMMAND:
                 return PlayerTeleportEvent.TeleportCause.COMMAND;

Bukkit/src/main/java/com/plotsquared/bukkit/player/BukkitPlayerManager.java

@@ -28,13 +28,14 @@ package com.plotsquared.bukkit.player;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
 import com.plotsquared.core.plot.world.PlotAreaManager;
+import com.plotsquared.core.util.EconHandler;
 import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.PlayerManager;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nullable;
-import org.jetbrains.annotations.Nullable;
 
+import javax.annotation.Nonnull;
 import java.util.UUID;
 
 /**
@@ -44,27 +45,31 @@ import java.util.UUID;
 
     private final PlotAreaManager plotAreaManager;
     private final EventDispatcher eventDispatcher;
+    private final EconHandler econHandler;
 
-    @Inject public BukkitPlayerManager(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public BukkitPlayerManager(@Nonnull final PlotAreaManager plotAreaManager,
-                               @NotNull final EventDispatcher eventDispatcher) {
+                                       @Nonnull final EventDispatcher eventDispatcher,
+                                       @Nullable final EconHandler econHandler) {
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
+        this.econHandler = econHandler;
     }
 
-    @NotNull @Override public BukkitPlayer getPlayer(@NotNull final Player object) {
+    @Nonnull @Override public BukkitPlayer getPlayer(@Nonnull final Player object) {
         try {
             return getPlayer(object.getUniqueId());
         } catch (final NoSuchPlayerException exception) {
-            return new BukkitPlayer(this.plotAreaManager, this.eventDispatcher, object, object.isOnline(), false);
+            return new BukkitPlayer(this.plotAreaManager, this.eventDispatcher, object,
+                object.isOnline(), false, this.econHandler);
         }
     }
 
-    @Override @NotNull public BukkitPlayer createPlayer(@NotNull final UUID uuid) {
+    @Override @Nonnull public BukkitPlayer createPlayer(@Nonnull final UUID uuid) {
         final Player player = Bukkit.getPlayer(uuid);
         if (player == null || !player.isOnline()) {
             throw new NoSuchPlayerException(uuid);
         }
-        return new BukkitPlayer(this.plotAreaManager, this.eventDispatcher, player);
+        return new BukkitPlayer(this.plotAreaManager, this.eventDispatcher, player, this.econHandler);
     }
 
     @Nullable @Override public BukkitOfflinePlayer getOfflinePlayer(@Nullable final UUID uuid) {
@@ -74,7 +79,7 @@ import java.util.UUID;
         return new BukkitOfflinePlayer(Bukkit.getOfflinePlayer(uuid));
     }
 
-    @NotNull @Override public BukkitOfflinePlayer getOfflinePlayer(@NotNull final String username) {
+    @Nonnull @Override public BukkitOfflinePlayer getOfflinePlayer(@Nonnull final String username) {
         return new BukkitOfflinePlayer(Bukkit.getOfflinePlayer(username));
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/queue/BukkitLocalQueue.java

@@ -31,7 +31,6 @@ import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.queue.BasicLocalBlockQueue;
 import com.plotsquared.core.util.BlockUtil;
 import com.plotsquared.core.util.MainUtil;
-import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.WorldEdit;
@@ -42,7 +41,6 @@ import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import io.papermc.lib.PaperLib;
-import lombok.NonNull;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.Material;
@@ -51,6 +49,7 @@ import org.bukkit.block.Biome;
 import org.bukkit.block.Block;
 import org.bukkit.block.Container;
 import org.bukkit.block.data.BlockData;
+import javax.annotation.Nonnull;
 
 import java.util.concurrent.ExecutionException;
 import java.util.function.Consumer;
@@ -201,12 +200,12 @@ public class BukkitLocalQueue extends BasicLocalBlockQueue {
         return chunk;
     }
 
-    private void setMaterial(@NonNull final BlockState plotBlock, @NonNull final Block block) {
+    private void setMaterial(@Nonnull final BlockState plotBlock, @Nonnull final Block block) {
         Material material = BukkitAdapter.adapt(plotBlock.getBlockType());
         block.setType(material, false);
     }
 
-    private boolean equals(@NonNull final BlockState plotBlock, @NonNull final Block block) {
+    private boolean equals(@Nonnull final BlockState plotBlock, @Nonnull final Block block) {
         return plotBlock.equals(BukkitBlockUtil.get(block));
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/queue/GenChunk.java

@@ -46,7 +46,7 @@ import org.bukkit.World;
 import org.bukkit.block.Biome;
 import org.bukkit.generator.ChunkGenerator.BiomeGrid;
 import org.bukkit.generator.ChunkGenerator.ChunkData;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Arrays;
 
@@ -135,7 +135,7 @@ public class GenChunk extends ScopedLocalBlockQueue {
         return false;
     }
 
-    @Override public boolean setBlock(int x, int y, int z, @NotNull Pattern pattern) {
+    @Override public boolean setBlock(int x, int y, int z, @Nonnull Pattern pattern) {
         return setBlock(x, y, z, PatternUtil
             .apply(Preconditions.checkNotNull(pattern, "Pattern may not be null"), x, y, z));
     }

Bukkit/src/main/java/com/plotsquared/bukkit/schematic/BukkitSchematicHandler.java

@@ -31,14 +31,14 @@ import com.plotsquared.core.queue.LocalBlockQueue;
 import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.WorldUtil;
 import com.sk89q.jnbt.CompoundTag;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 /**
  * Schematic Handler.
  */
 @Singleton public class BukkitSchematicHandler extends SchematicHandler {
 
-    @Inject public BukkitSchematicHandler(@NotNull final WorldUtil worldUtil) {
+    @Inject public BukkitSchematicHandler(@Nonnull final WorldUtil worldUtil) {
         super(worldUtil);
     }
 

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

@@ -28,7 +28,6 @@ package com.plotsquared.bukkit.util;
 import com.google.inject.Singleton;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.listener.WEExtent;
-import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.queue.LocalBlockQueue;
 import com.plotsquared.core.util.ChunkManager;
 import com.plotsquared.core.util.entity.EntityCategories;
@@ -80,8 +79,8 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
         BukkitWorld bukkitWorld1 = new BukkitWorld(world1);
         BukkitWorld bukkitWorld2 = new BukkitWorld(world2);
 
-        LocalBlockQueue queue1 = GlobalBlockQueue.IMP.getNewQueue(worldName1, false);
+        LocalBlockQueue queue1 = PlotSquared.platform().getGlobalBlockQueue().getNewQueue(worldName1, false);
-        LocalBlockQueue queue2 = GlobalBlockQueue.IMP.getNewQueue(worldName2, false);
+        LocalBlockQueue queue2 = PlotSquared.platform().getGlobalBlockQueue().getNewQueue(worldName2, false);
 
         for (int x = Math.max(r1.getMinimumPoint().getX(), sx);
              x <= Math.min(r1.getMaximumPoint().getX(), sx + 15); x++) {

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

@@ -36,7 +36,7 @@ import com.plotsquared.core.util.PermHandler;
 import net.milkbowl.vault.economy.Economy;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.RegisteredServiceProvider;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 @Singleton public class BukkitEconHandler extends EconHandler {
 

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

@@ -35,7 +35,6 @@ import com.plotsquared.core.location.PlotLoc;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotManager;
-import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.queue.LocalBlockQueue;
 import com.plotsquared.core.queue.ScopedLocalBlockQueue;
 import com.plotsquared.core.util.ChunkManager;
@@ -58,7 +57,7 @@ import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -79,7 +78,7 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
 
 @Singleton public class BukkitRegionManager extends RegionManager {
 
-    @Inject public BukkitRegionManager(@NotNull ChunkManager chunkManager) {
+    @Inject public BukkitRegionManager(@Nonnull final ChunkManager chunkManager) {
         super(chunkManager);
     }
 
@@ -212,7 +211,7 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
         assert oldWorld != null;
         final String newWorldName = newWorld.getName();
         final ContentMap map = new ContentMap();
-        final LocalBlockQueue queue = GlobalBlockQueue.IMP.getNewQueue(newWorldName, false);
+        final LocalBlockQueue queue = PlotSquared.platform().getGlobalBlockQueue().getNewQueue(newWorldName, false);
         ChunkManager.chunkTask(pos1, pos2, new RunnableVal<int[]>() {
             @Override public void run(int[] value) {
                 int bx = value[2];
@@ -243,7 +242,7 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
                 }
             }
             queue.enqueue();
-            GlobalBlockQueue.IMP.addEmptyTask(() -> {
+            PlotSquared.platform().getGlobalBlockQueue().addEmptyTask(() -> {
                 //map.restoreBlocks(newWorld, 0, 0);
                 map.restoreEntities(newWorld, relX, relZ);
                 TaskManager.runTask(whenDone);
@@ -291,8 +290,8 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
                         if (chunkObj == null) {
                             return;
                         }
-                        final LocalBlockQueue queue =
+                        final LocalBlockQueue queue = PlotSquared.platform().getGlobalBlockQueue()
-                            GlobalBlockQueue.IMP.getNewQueue(world, false);
+                            .getNewQueue(world, false);
                         if (xxb >= p1x && xxt <= p2x && zzb >= p1z && zzt <= p2z) {
                             AugmentedUtils.bypass(ignoreAugment,
                                 () -> queue.regenChunkSafe(chunk.getX(), chunk.getZ()));
@@ -452,7 +451,7 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
                     BukkitChunkManager.swapChunk(world1, world2, chunk1, chunk2, region1, region2));
             }
         }
-        GlobalBlockQueue.IMP.addEmptyTask(() -> {
+        PlotSquared.platform().getGlobalBlockQueue().addEmptyTask(() -> {
             for (ContentMap map : maps) {
                 map.restoreEntities(world1, 0, 0);
                 TaskManager.runTaskLater(whenDone, 1);
@@ -467,12 +466,13 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
             region.getMinimumPoint().getY(), region.getMinimumPoint().getZ() - extendBiome);
         Location pos2 = Location.at(world, region.getMaximumPoint().getX() + extendBiome,
             region.getMaximumPoint().getY(), region.getMaximumPoint().getZ() + extendBiome);
-        final LocalBlockQueue queue = GlobalBlockQueue.IMP.getNewQueue(world, false);
+        final LocalBlockQueue queue = PlotSquared.platform().getGlobalBlockQueue()
+            .getNewQueue(world, false);
 
         ChunkManager.chunkTask(pos1, pos2, new RunnableVal<int[]>() {
             @Override public void run(int[] value) {
                 BlockVector2 loc = BlockVector2.at(value[0], value[1]);
-                ChunkManager.manager.loadChunk(world, loc, false).thenRun(() -> {
+                PlotSquared.platform().getChunkManager().loadChunk(world, loc, false).thenRun(() -> {
                     MainUtil.setBiome(world, value[2], value[3], value[4], value[5], biome);
                     queue.refreshChunk(value[0], value[1]);
                 });

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

@@ -48,7 +48,7 @@ import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.plugin.Plugin;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.io.IOException;
@@ -62,9 +62,9 @@ import java.util.Objects;
     private final YamlConfiguration worldConfiguration;
     private final File worldFile;
 
-    @Inject public BukkitSetupUtils(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public BukkitSetupUtils(@Nonnull final PlotAreaManager plotAreaManager,
-                            @WorldConfig @NotNull final YamlConfiguration worldConfiguration,
+                            @WorldConfig @Nonnull final YamlConfiguration worldConfiguration,
-                            @WorldFile @NotNull final File worldFile) {
+                            @WorldFile @Nonnull final File worldFile) {
         this.plotAreaManager = plotAreaManager;
         this.worldConfiguration = worldConfiguration;
         this.worldFile = worldFile;

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

@@ -54,7 +54,7 @@ import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockType;
 import com.sk89q.worldedit.world.block.BlockTypes;
 import io.papermc.lib.PaperLib;
-import lombok.NonNull;
+
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.Material;
@@ -96,8 +96,8 @@ import org.bukkit.entity.Snowman;
 import org.bukkit.entity.Tameable;
 import org.bukkit.entity.Vehicle;
 import org.bukkit.entity.WaterMob;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -119,7 +119,7 @@ import java.util.stream.Stream;
     private static Player lastPlayer = null;
     private static BukkitPlayer lastPlotPlayer = null;
 
-    @Inject public BukkitUtil(@NotNull final RegionManager regionManager) {
+    @Inject public BukkitUtil(@Nonnull final RegionManager regionManager) {
         super(regionManager);
     }
 
@@ -130,7 +130,7 @@ import java.util.stream.Stream;
         PlotSquared.platform().getPlayerManager().removePlayer(uuid);
     }
 
-    public static PlotPlayer<Player> getPlayer(@NonNull final OfflinePlayer op) {
+    public static PlotPlayer<Player> getPlayer(@Nonnull final OfflinePlayer op) {
         if (op.isOnline()) {
             return getPlayer(op.getPlayer());
         }
@@ -275,7 +275,7 @@ import java.util.stream.Stream;
         MainUtil.sendMessage(BukkitUtil.getPlayer(player), caption);
     }
 
-    public static BukkitPlayer getPlayer(@NonNull final Player player) {
+    public static BukkitPlayer getPlayer(@Nonnull final Player player) {
         if (player == lastPlayer) {
             return lastPlotPlayer;
         }
@@ -283,31 +283,31 @@ import java.util.stream.Stream;
         return ((BukkitPlayerManager) playerManager).getPlayer(player);
     }
 
-    public static Location getLocation(@NonNull final org.bukkit.Location location) {
+    public static Location getLocation(final org.bukkit.Location location) {
         return Location.at(com.plotsquared.bukkit.util.BukkitWorld.of(location.getWorld()),
             MathMan.roundInt(location.getX()), MathMan.roundInt(location.getY()), MathMan.roundInt(location.getZ()));
     }
 
-    public static Location getLocationFull(@NonNull final org.bukkit.Location location) {
+    public static Location getLocationFull(final org.bukkit.Location location) {
         return Location.at(com.plotsquared.bukkit.util.BukkitWorld.of(location.getWorld()),
             MathMan.roundInt(location.getX()), MathMan.roundInt(location.getY()), MathMan.roundInt(location.getZ()), location.getYaw(),
             location.getPitch());
     }
 
-    public static org.bukkit.Location getLocation(@NonNull final Location location) {
+    public static org.bukkit.Location getLocation(@Nonnull final Location location) {
         return new org.bukkit.Location((World) location.getWorld().getPlatformWorld(), location.getX(),
             location.getY(), location.getZ());
     }
 
-    public static World getWorld(@NonNull final String string) {
+    public static World getWorld(@Nonnull final String string) {
         return Bukkit.getWorld(string);
     }
 
-    public static String getWorld(@NonNull final Entity entity) {
+    public static String getWorld(@Nonnull final Entity entity) {
         return entity.getWorld().getName();
     }
 
-    public static List<Entity> getEntities(@NonNull final String worldName) {
+    public static List<Entity> getEntities(@Nonnull final String worldName) {
         World world = getWorld(worldName);
         if (world != null) {
             return world.getEntities();
@@ -316,21 +316,21 @@ import java.util.stream.Stream;
         }
     }
 
-    public static Location getLocation(@NonNull final Entity entity) {
+    public static Location getLocation(@Nonnull final Entity entity) {
         final org.bukkit.Location location = entity.getLocation();
         String world = location.getWorld().getName();
         return Location.at(world, location.getBlockX(), location.getBlockY(),
             location.getBlockZ());
     }
 
-    @NotNull public static Location getLocationFull(@NonNull final Entity entity) {
+    @Nonnull public static Location getLocationFull(@Nonnull final Entity entity) {
         final org.bukkit.Location location = entity.getLocation();
         return Location.at(location.getWorld().getName(), MathMan.roundInt(location.getX()),
             MathMan.roundInt(location.getY()), MathMan.roundInt(location.getZ()), location.getYaw(),
             location.getPitch());
     }
 
-    public static Material getMaterial(@NonNull final BlockState plotBlock) {
+    public static Material getMaterial(@Nonnull final BlockState plotBlock) {
         return BukkitAdapter.adapt(plotBlock.getBlockType());
     }
 
@@ -342,7 +342,7 @@ import java.util.stream.Stream;
         return mat1 == mat2;
     }
 
-    @Override public boolean isWorld(@NonNull final String worldName) {
+    @Override public boolean isWorld(@Nonnull final String worldName) {
         return getWorld(worldName) != null;
     }
 
@@ -356,7 +356,7 @@ import java.util.stream.Stream;
     }
 
     @Override
-    public void getHighestBlock(@NonNull final String world, final int x, final int z,
+    public void getHighestBlock(@Nonnull final String world, final int x, final int z,
         final IntConsumer result) {
         ensureLoaded(world, x, z, chunk -> {
             final World bukkitWorld = getWorld(world);
@@ -406,7 +406,7 @@ import java.util.stream.Stream;
     }
 
     @Override
-    public void getSign(@NonNull final Location location, final Consumer<String[]> result) {
+    public void getSign(@Nonnull final Location location, final Consumer<String[]> result) {
         ensureLoaded(location, chunk -> {
             final Block block = chunk.getWorld().getBlockAt(getLocation(location));
             if (block.getState() instanceof Sign) {
@@ -416,7 +416,7 @@ import java.util.stream.Stream;
         });
     }
 
-    @Override @Nullable public String[] getSignSynchronous(@NonNull final Location location) {
+    @Override @Nullable public String[] getSignSynchronous(@Nonnull final Location location) {
         Block block = getWorld(location.getWorldName())
             .getBlockAt(location.getX(), location.getY(), location.getZ());
         return TaskManager.getImplementation().sync(new RunnableVal<String[]>() {
@@ -429,20 +429,20 @@ import java.util.stream.Stream;
         });
     }
 
-    @Override public Location getSpawn(@NonNull final String world) {
+    @Override public Location getSpawn(@Nonnull final String world) {
         final org.bukkit.Location temp = getWorld(world).getSpawnLocation();
         return Location.at(world, temp.getBlockX(), temp.getBlockY(), temp.getBlockZ(),
             temp.getYaw(), temp.getPitch());
     }
 
-    @Override public void setSpawn(@NonNull final Location location) {
+    @Override public void setSpawn(@Nonnull final Location location) {
         final World world = getWorld(location.getWorldName());
         if (world != null) {
             world.setSpawnLocation(location.getX(), location.getY(), location.getZ());
         }
     }
 
-    @Override public void saveWorld(@NonNull final String worldName) {
+    @Override public void saveWorld(@Nonnull final String worldName) {
         final World world = getWorld(worldName);
         if (world != null) {
             world.save();
@@ -450,8 +450,8 @@ import java.util.stream.Stream;
     }
 
     @Override @SuppressWarnings("deprecation")
-    public void setSign(@NonNull final String worldName, final int x, final int y, final int z,
+    public void setSign(@Nonnull final String worldName, final int x, final int y, final int z,
-        @NonNull final String[] lines) {
+        @Nonnull final String[] lines) {
         ensureLoaded(worldName, x, z, chunk -> {
             final World world = getWorld(worldName);
             final Block block = world.getBlockAt(x, y, z);
@@ -490,11 +490,11 @@ import java.util.stream.Stream;
         });
     }
 
-    @Override public boolean isBlockSolid(@NonNull final BlockState block) {
+    @Override public boolean isBlockSolid(@Nonnull final BlockState block) {
         return block.getBlockType().getMaterial().isSolid();
     }
 
-    @Override public String getClosestMatchingName(@NonNull final BlockState block) {
+    @Override public String getClosestMatchingName(@Nonnull final BlockState block) {
         try {
             return getMaterial(block).name();
         } catch (Exception ignored) {
@@ -509,8 +509,8 @@ import java.util.stream.Stream;
     }
 
     @Override
-    public void setBiomes(@NonNull final String worldName, @NonNull final CuboidRegion region,
+    public void setBiomes(@Nonnull final String worldName, @Nonnull final CuboidRegion region,
-        @NonNull final BiomeType biomeType) {
+        @Nonnull final BiomeType biomeType) {
         final World world = getWorld(worldName);
         if (world == null) {
             PlotSquared.log("An error occurred setting the biome because the world was null.");
@@ -532,7 +532,7 @@ import java.util.stream.Stream;
     }
 
     @Override
-    public void getBlock(@NonNull final Location location, final Consumer<BlockState> result) {
+    public void getBlock(@Nonnull final Location location, final Consumer<BlockState> result) {
         ensureLoaded(location, chunk -> {
             final World world = getWorld(location.getWorldName());
             final Block block = world.getBlockAt(location.getX(), location.getY(), location.getZ());
@@ -540,7 +540,7 @@ import java.util.stream.Stream;
         });
     }
 
-    @Override public BlockState getBlockSynchronous(@NonNull final Location location) {
+    @Override public BlockState getBlockSynchronous(@Nonnull final Location location) {
         final World world = getWorld(location.getWorldName());
         final Block block = world.getBlockAt(location.getX(), location.getY(), location.getZ());
         return BukkitAdapter.asBlockType(block.getType()).getDefaultState();

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

@@ -30,7 +30,7 @@ import com.plotsquared.core.location.World;
 import lombok.EqualsAndHashCode;
 import lombok.ToString;
 import org.bukkit.Bukkit;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Map;
 
@@ -40,7 +40,7 @@ import java.util.Map;
 
     private final org.bukkit.World world;
 
-    private BukkitWorld(@NotNull final org.bukkit.World world) {
+    private BukkitWorld(final org.bukkit.World world) {
         this.world = world;
     }
 
@@ -50,7 +50,7 @@ import java.util.Map;
      * @param worldName World name
      * @return World instance
      */
-    @NotNull public static BukkitWorld of(@NotNull final String worldName) {
+    @Nonnull public static BukkitWorld of(@Nonnull final String worldName) {
         final org.bukkit.World bukkitWorld = Bukkit.getWorld(worldName);
         if (bukkitWorld == null) {
             throw new IllegalArgumentException(String.format("There is no world with the name '%s'", worldName));
@@ -64,7 +64,7 @@ import java.util.Map;
      * @param world Bukkit world
      * @return World instance
      */
-    @NotNull public static BukkitWorld of(@NotNull final org.bukkit.World world) {
+    @Nonnull public static BukkitWorld of(final org.bukkit.World world) {
         BukkitWorld bukkitWorld = worldMap.get(world.getName());
         if (bukkitWorld != null && bukkitWorld.getPlatformWorld().equals(world)) {
             return bukkitWorld;
@@ -74,11 +74,11 @@ import java.util.Map;
         return bukkitWorld;
     }
 
-    @NotNull @Override public org.bukkit.World getPlatformWorld() {
+    @Override public org.bukkit.World getPlatformWorld() {
         return this.world;
     }
 
-    @Override @NotNull public String getName() {
+    @Override @Nonnull public String getName() {
         return this.world.getName();
     }
 

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

@@ -38,7 +38,7 @@ import java.util.ArrayList;
 public class SetGenCB {
 
     public static void setGenerator(World world) throws Exception {
-        SetupUtils.manager.updateGenerators();
+        PlotSquared.platform().getSetupUtils().updateGenerators();
         PlotSquared.get().removePlotAreas(world.getName());
         ChunkGenerator gen = world.getGenerator();
         if (gen == null) {

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

@@ -30,7 +30,7 @@ import com.plotsquared.core.uuid.UUIDService;
 import net.luckperms.api.model.user.UserManager;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.RegisteredServiceProvider;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -54,7 +54,7 @@ public class BungeePermsUUIDService implements UUIDService {
         }
     }
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
        final List<UUIDMapping> mappings = new ArrayList<>(uuids.size());
        final UUIDPlayerDB uuiddb = BungeePerms.getInstance().getPermissionsManager().getUUIDPlayerDB();
        for (final UUID uuid : uuids) {
@@ -68,7 +68,7 @@ public class BungeePermsUUIDService implements UUIDService {
        return mappings;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> mappings = new ArrayList<>(usernames.size());
         final UUIDPlayerDB uuiddb = BungeePerms.getInstance().getPermissionsManager().getUUIDPlayerDB();
         for (final String username : usernames) {

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

@@ -29,7 +29,7 @@ import com.earth2me.essentials.Essentials;
 import com.earth2me.essentials.User;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.plotsquared.core.uuid.UUIDService;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -47,11 +47,11 @@ public class EssentialsUUIDService implements UUIDService {
         this.essentials = Essentials.getPlugin(Essentials.class);
     }
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
         return Collections.emptyList();
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> mappings = new ArrayList<>(usernames.size());
         for (final String username : usernames) {
             try {

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

@@ -31,7 +31,7 @@ import net.luckperms.api.LuckPerms;
 import net.luckperms.api.model.user.UserManager;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.RegisteredServiceProvider;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -53,7 +53,7 @@ public class LuckPermsUUIDService implements UUIDService {
         }
     }
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
        final List<UUIDMapping> mappings = new ArrayList<>(uuids.size());
        final UserManager userManager = this.luckPerms.getUserManager();
        for (final UUID uuid : uuids) {
@@ -67,7 +67,7 @@ public class LuckPermsUUIDService implements UUIDService {
        return mappings;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> mappings = new ArrayList<>(usernames.size());
         final UserManager userManager = this.luckPerms.getUserManager();
         for (final String username : usernames) {

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

@@ -31,7 +31,7 @@ import com.plotsquared.core.uuid.UUIDMapping;
 import com.plotsquared.core.uuid.UUIDService;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -43,7 +43,7 @@ import java.util.UUID;
  */
 public class OfflinePlayerUUIDService implements UUIDService {
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
         if (Settings.UUID.FORCE_LOWERCASE || Bukkit.getWorlds().isEmpty()) {
             return Collections.emptyList(); // This is useless now
         }
@@ -61,7 +61,7 @@ public class OfflinePlayerUUIDService implements UUIDService {
         return wrappers;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> wrappers = new ArrayList<>(usernames.size());
         for (final String username : usernames) {
             if (Settings.UUID.OFFLINE) {

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

@@ -29,7 +29,7 @@ import com.destroystokyo.paper.profile.PlayerProfile;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.plotsquared.core.uuid.UUIDService;
 import org.bukkit.Bukkit;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -40,7 +40,7 @@ import java.util.UUID;
  */
 public class PaperUUIDService implements UUIDService {
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
         final List<UUIDMapping> mappings = new ArrayList<>(uuids.size());
         for (final UUID uuid : uuids) {
             final PlayerProfile playerProfile = Bukkit.createProfile(uuid);
@@ -51,7 +51,7 @@ public class PaperUUIDService implements UUIDService {
         return mappings;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> mappings = new ArrayList<>(usernames.size());
         for (final String username : usernames) {
             final PlayerProfile playerProfile = Bukkit.createProfile(username);

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

@@ -30,7 +30,7 @@ import com.plotsquared.core.database.SQLite;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.plotsquared.core.uuid.UUIDService;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -72,7 +72,7 @@ public class SQLiteUUIDService implements UUIDService, Consumer<List<UUIDMapping
         }
     }
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
         final List<UUIDMapping> mappings = new ArrayList<>(uuids.size());
         try (final PreparedStatement statement = getConnection()
             .prepareStatement("SELECT `username` FROM `usercache` WHERE `uuid` = ?")) {
@@ -90,7 +90,7 @@ public class SQLiteUUIDService implements UUIDService, Consumer<List<UUIDMapping
         return mappings;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull List<String> usernames) {
         final List<UUIDMapping> mappings = new ArrayList<>(usernames.size());
         try (final PreparedStatement statement = getConnection()
             .prepareStatement("SELECT `uuid` FROM `usercache` WHERE `username` = ?")) {
@@ -127,7 +127,7 @@ public class SQLiteUUIDService implements UUIDService, Consumer<List<UUIDMapping
      *
      * @return All read mappings
      */
-    @NotNull public List<UUIDMapping> getAll() {
+    @Nonnull public List<UUIDMapping> getAll() {
         final List<UUIDMapping> mappings = new LinkedList<>();
         try (final PreparedStatement statement = getConnection().prepareStatement("SELECT * FROM `usercache`")) {
             try (final ResultSet resultSet = statement.executeQuery()) {

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

@@ -33,7 +33,7 @@ import com.plotsquared.core.uuid.UUIDService;
 import com.sk89q.squirrelid.Profile;
 import com.sk89q.squirrelid.resolver.HttpRepositoryService;
 import com.sk89q.squirrelid.resolver.ProfileService;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -64,7 +64,7 @@ public class SquirrelIdUUIDService implements UUIDService {
         this.rateLimiter = RateLimiter.create(rateLimit / 600.0D);
     }
 
-    @Override @NotNull public List<UUIDMapping> getNames(@NotNull final List<UUID> uuids) {
+    @Override @Nonnull public List<UUIDMapping> getNames(@Nonnull final List<UUID> uuids) {
         final List<UUIDMapping> results = new ArrayList<>(uuids.size());
         this.rateLimiter.acquire(uuids.size());
         try {
@@ -96,7 +96,7 @@ public class SquirrelIdUUIDService implements UUIDService {
         return results;
     }
 
-    @Override @NotNull public List<UUIDMapping> getUUIDs(@NotNull final List<String> usernames) {
+    @Override @Nonnull public List<UUIDMapping> getUUIDs(@Nonnull final List<String> usernames) {
         final List<UUIDMapping> results = new ArrayList<>(usernames.size());
         this.rateLimiter.acquire(usernames.size());
         try {

Core/build.gradle

@@ -16,10 +16,10 @@ dependencies {
     annotationProcessor("org.projectlombok:lombok:1.18.8")
     testAnnotationProcessor("org.projectlombok:lombok:1.18.8")
     implementation("org.jetbrains.kotlin:kotlin-stdlib:1.3.72")
-    implementation("org.jetbrains:annotations:19.0.0")
     implementation("org.khelekore:prtree:1.7.0-SNAPSHOT")
     compile("com.google.inject:guice:4.2.3")
     compile("com.google.inject.extensions:guice-assistedinject:4.2.3")
+    compile group: 'com.google.code.findbugs', name: 'annotations', version: '3.0.1'
 }
 
 sourceCompatibility = 1.8

Core/pom.xml

@@ -12,18 +12,36 @@
       <version>20200518</version>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>javax.annotation</groupId>
+      <artifactId>javax.annotation-api</artifactId>
+      <version>1.3.2</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.inject</groupId>
+      <artifactId>guice</artifactId>
+      <version>4.2.3</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.inject.extensions</groupId>
+      <artifactId>guice-assistedinject</artifactId>
+      <version>4.2.3</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.code.findbugs</groupId>
+      <artifactId>annotations</artifactId>
+      <version>3.0.1</version>
+      <scope>compile</scope>
+    </dependency>
     <dependency>
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
       <version>1.18.12</version>
       <scope>runtime</scope>
     </dependency>
-    <dependency>
-      <groupId>org.jetbrains</groupId>
-      <artifactId>annotations</artifactId>
-      <version>19.0.0</version>
-      <scope>runtime</scope>
-    </dependency>
     <dependency>
       <groupId>com.sk89q.worldedit</groupId>
       <artifactId>worldedit-core</artifactId>
@@ -98,18 +116,6 @@
       <version>1.7.0-SNAPSHOT</version>
       <scope>runtime</scope>
     </dependency>
-    <dependency>
-      <groupId>com.google.inject</groupId>
-      <artifactId>guice</artifactId>
-      <version>4.2.3</version>
-      <scope>runtime</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.google.inject.extensions</groupId>
-      <artifactId>guice-assistedinject</artifactId>
-      <version>4.2.3</version>
-      <scope>runtime</scope>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>

Core/src/main/java/com/plotsquared/core/PlotPlatform.java

@@ -36,14 +36,16 @@ import com.plotsquared.core.location.World;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.util.ChatManager;
+import com.plotsquared.core.util.ChunkManager;
 import com.plotsquared.core.util.EconHandler;
 import com.plotsquared.core.util.PlatformWorldManager;
 import com.plotsquared.core.util.PlayerManager;
+import com.plotsquared.core.util.RegionManager;
 import com.plotsquared.core.util.SetupUtils;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.logger.ILogger;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.io.File;
 import java.util.List;
@@ -153,7 +155,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Default implementation generator
      */
-    @NotNull default IndependentPlotGenerator getDefaultGenerator() {
+    @Nonnull default IndependentPlotGenerator getDefaultGenerator() {
         return getInjector().getInstance(Key.get(IndependentPlotGenerator.class, DefaultGenerator.class));
     }
 
@@ -164,7 +166,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Backup manager
      */
-    @NotNull default BackupManager getBackupManager() {
+    @Nonnull default BackupManager getBackupManager() {
         return getInjector().getInstance(BackupManager.class);
     }
 
@@ -173,7 +175,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return World manager
      */
-    @NotNull default PlatformWorldManager<?> getWorldManager() {
+    @Nonnull default PlatformWorldManager<?> getWorldManager() {
         return getInjector().getInstance(PlatformWorldManager.class);
     }
 
@@ -182,7 +184,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Player manager
      */
-    @NotNull default PlayerManager<? extends PlotPlayer<P>, ? extends P> getPlayerManager() {
+    @Nonnull default PlayerManager<? extends PlotPlayer<P>, ? extends P> getPlayerManager() {
         return getInjector().getInstance(PlayerManager.class);
     }
 
@@ -192,21 +194,21 @@ public interface PlotPlatform<P> extends ILogger {
      * @param worldName World name
      * @return Platform world wrapper
      */
-    @NotNull World<?> getPlatformWorld(@NotNull final String worldName);
+    @Nonnull World<?> getPlatformWorld(@Nonnull final String worldName);
 
     /**
      * Get the {@link com.google.inject.Injector} instance used by PlotSquared
      *
      * @return Injector instance
      */
-    @NotNull Injector getInjector();
+    @Nonnull Injector getInjector();
 
     /**
      * Get the world utility implementation
      *
      * @return World utility
      */
-    @NotNull default WorldUtil getWorldUtil() {
+    @Nonnull default WorldUtil getWorldUtil() {
         return getInjector().getInstance(WorldUtil.class);
     }
 
@@ -215,7 +217,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Global block queue implementation
      */
-    @NotNull default GlobalBlockQueue getGlobalBlockQueue() {
+    @Nonnull default GlobalBlockQueue getGlobalBlockQueue() {
         return getInjector().getInstance(GlobalBlockQueue.class);
     }
 
@@ -224,7 +226,7 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Hybrid utils
      */
-    @NotNull default HybridUtils getHybridUtils() {
+    @Nonnull default HybridUtils getHybridUtils() {
         return getInjector().getInstance(HybridUtils.class);
     }
 
@@ -233,17 +235,35 @@ public interface PlotPlatform<P> extends ILogger {
      *
      * @return Setup utils
      */
-    @NotNull default SetupUtils getSetupUtils() {
+    @Nonnull default SetupUtils getSetupUtils() {
         return getInjector().getInstance(SetupUtils.class);
     }
 
     /**
      * Get the {@link EconHandler} implementation for the platform
-     *
+     *      *
      * @return Econ handler
      */
-    @NotNull default EconHandler getEconHandler() {
+    @Nullable default EconHandler getEconHandler() {
         return getInjector().getInstance(EconHandler.class);
     }
 
+    /**
+     * Get the {@link RegionManager} implementation for the platform
+     *
+     * @return Region manager
+     */
+    @Nonnull default RegionManager getRegionManager() {
+        return getInjector().getInstance(RegionManager.class);
+    }
+
+    /**
+     * Get the {@link ChunkManager} implementation for the platform
+     *
+     * @return Region manager
+     */
+    @Nonnull default ChunkManager getChunkManager() {
+        return getInjector().getInstance(ChunkManager.class);
+    }
+
 }

Core/src/main/java/com/plotsquared/core/PlotSquared.java

@@ -26,7 +26,6 @@
 package com.plotsquared.core;
 
 import com.plotsquared.core.configuration.Caption;
-import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.ConfigurationUtil;
@@ -47,7 +46,6 @@ import com.plotsquared.core.generator.IndependentPlotGenerator;
 import com.plotsquared.core.inject.factory.HybridPlotWorldFactory;
 import com.plotsquared.core.listener.PlotListener;
 import com.plotsquared.core.location.Location;
-import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.plot.BlockBucket;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
@@ -56,13 +54,11 @@ import com.plotsquared.core.plot.PlotAreaType;
 import com.plotsquared.core.plot.PlotCluster;
 import com.plotsquared.core.plot.PlotId;
 import com.plotsquared.core.plot.PlotManager;
-import com.plotsquared.core.plot.comment.CommentManager;
 import com.plotsquared.core.plot.expiration.ExpireManager;
 import com.plotsquared.core.plot.expiration.ExpiryTask;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.plot.world.SinglePlotArea;
 import com.plotsquared.core.plot.world.SinglePlotAreaManager;
-import com.plotsquared.core.util.ChatManager;
 import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.LegacyConverter;
 import com.plotsquared.core.util.MainUtil;
@@ -77,9 +73,9 @@ import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.math.BlockVector2;
 import lombok.Getter;
 import lombok.Setter;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nullable;
-import org.jetbrains.annotations.Nullable;
 
+import javax.annotation.Nonnull;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
@@ -150,7 +146,6 @@ public class PlotSquared {
     // Files and configuration
     @Getter private File jarFile = null; // This file
     private File storageFile;
-    @Getter private PlotAreaManager plotAreaManager;
     @Getter private EventDispatcher eventDispatcher;
     @Getter private PlotListener plotListener;
 
@@ -195,6 +190,7 @@ public class PlotSquared {
             if (!setupConfigs()) {
                 return;
             }
+
             this.translationFile = MainUtil.getFile(this.platform.getDirectory(),
                 Settings.Paths.TRANSLATIONS + File.separator + this.platform.getPluginName()
                     + ".use_THIS.yml");
@@ -207,29 +203,6 @@ public class PlotSquared {
             // Create plot listener
             this.plotListener = new PlotListener(this.eventDispatcher);
 
-            // Database
-            if (Settings.Enabled_Components.DATABASE) {
-                setupDatabase();
-            }
-
-            // Check if we need to convert old flag values, etc
-            if (!getConfigurationVersion().equalsIgnoreCase("v5")) {
-                // Perform upgrade
-                if (DBFunc.dbManager.convertFlags()) {
-                    log(Captions.PREFIX.getTranslated() + "Flags were converted successfully!");
-                    // Update the config version
-                    setConfigurationVersion("v5");
-                }
-            }
-
-            // Comments
-            CommentManager.registerDefaultInboxes();
-
-            startExpiryTasks();
-
-            // This is getting removed so I won't even bother migrating it
-            ChatManager.manager = this.platform.initChatManager();
-
             // Copy files
             copyFile("addplots.js", Settings.Paths.SCRIPTS);
             copyFile("addsigns.js", Settings.Paths.SCRIPTS);
@@ -253,10 +226,15 @@ public class PlotSquared {
         } catch (Throwable e) {
             e.printStackTrace();
         }
+    }
 
-        PlotSquared.log(Captions.PREFIX + CaptionUtility
+    /**
-            .format(ConsolePlayer.getConsole(), Captions.ENABLED.getTranslated(),
+     * Get the platform specific {@link PlotAreaManager} instance
-                this.platform.getPluginName()));
+     *
+     * @return Plot area manager
+     */
+    @Nonnull public PlotAreaManager getPlotAreaManager() {
+        return this.platform.getInjector().getInstance(PlotAreaManager.class);
     }
 
     /**
@@ -273,7 +251,7 @@ public class PlotSquared {
      *
      * @return Platform implementation
      */
-    @NotNull public static PlotPlatform<?> platform() {
+    @Nonnull public static PlotPlatform<?> platform() {
         if (instance != null && instance.platform != null) {
             return instance.platform;
         }
@@ -315,12 +293,12 @@ public class PlotSquared {
         }
     }
 
-    private void startExpiryTasks() {
+    public void startExpiryTasks() {
         if (Settings.Enabled_Components.PLOT_EXPIRY) {
             ExpireManager.IMP = new ExpireManager(this.eventDispatcher);
             ExpireManager.IMP.runAutomatedTask();
             for (Settings.Auto_Clear settings : Settings.AUTO_CLEAR.getInstances()) {
-                ExpiryTask task = new ExpiryTask(settings, this.plotAreaManager);
+                ExpiryTask task = new ExpiryTask(settings, this.getPlotAreaManager());
                 ExpireManager.IMP.addTask(task);
             }
         }
@@ -412,7 +390,7 @@ public class PlotSquared {
                 cluster.setArea(plotArea);
             }
         }
-        plotAreaManager.addPlotArea(plotArea);
+        getPlotAreaManager().addPlotArea(plotArea);
         plotArea.setupBorder();
         if (!Settings.Enabled_Components.PERSISTENT_ROAD_REGEN) {
             return;
@@ -459,11 +437,11 @@ public class PlotSquared {
      * @param area the {@code PlotArea} to remove
      */
     public void removePlotArea(PlotArea area) {
-        plotAreaManager.removePlotArea(area);
+        getPlotAreaManager().removePlotArea(area);
         setPlotsTmp(area);
     }
 
-    public void removePlotAreas(@NotNull final String world) {
+    public void removePlotAreas(@Nonnull final String world) {
         for (final PlotArea area : this.getPlotAreaManager().getPlotAreasSet(world)) {
             if (area.getWorldName().equals(world)) {
                 removePlotArea(area);
@@ -486,7 +464,7 @@ public class PlotSquared {
         this.clustersTmp.put(area.toString(), area.getClusters());
     }
 
-    public Set<PlotCluster> getClusters(@NotNull final String world) {
+    public Set<PlotCluster> getClusters(@Nonnull final String world) {
         final Set<PlotCluster> set = new HashSet<>();
         for (final PlotArea area : this.getPlotAreaManager().getPlotAreasSet(world)) {
             set.addAll(area.getClusters());
@@ -695,13 +673,13 @@ public class PlotSquared {
         // group by world
         // sort each
         HashMap<PlotArea, Collection<Plot>> map = new HashMap<>();
-        int totalSize = Arrays.stream(this.plotAreaManager.getAllPlotAreas()).mapToInt(PlotArea::getPlotCount).sum();
+        int totalSize = Arrays.stream(this.getPlotAreaManager().getAllPlotAreas()).mapToInt(PlotArea::getPlotCount).sum();
         if (plots.size() == totalSize) {
-            for (PlotArea area : plotAreaManager.getAllPlotAreas()) {
+            for (PlotArea area : getPlotAreaManager().getAllPlotAreas()) {
                 map.put(area, area.getPlots());
             }
         } else {
-            for (PlotArea area : plotAreaManager.getAllPlotAreas()) {
+            for (PlotArea area : getPlotAreaManager().getAllPlotAreas()) {
                 map.put(area, new ArrayList<>(0));
             }
             Collection<Plot> lastList = null;
@@ -716,7 +694,7 @@ public class PlotSquared {
                 }
             }
         }
-        List<PlotArea> areas = Arrays.asList(plotAreaManager.getAllPlotAreas());
+        List<PlotArea> areas = Arrays.asList(getPlotAreaManager().getAllPlotAreas());
         areas.sort((a, b) -> {
             if (priorityArea != null) {
                 if (a.equals(priorityArea)) {
@@ -749,7 +727,7 @@ public class PlotSquared {
         return toReturn;
     }
 
-    public void setPlots(@NotNull final Map<String, HashMap<PlotId, Plot>> plots) {
+    public void setPlots(@Nonnull final Map<String, HashMap<PlotId, Plot>> plots) {
         if (this.plots_tmp == null) {
             this.plots_tmp = new HashMap<>();
         }
@@ -816,7 +794,7 @@ public class PlotSquared {
         if (world.equals("CheckingPlotSquaredGenerator")) {
             return;
         }
-        this.plotAreaManager.addWorld(world);
+        this.getPlotAreaManager().addWorld(world);
         Set<String> worlds;
         if (this.worldConfiguration.contains("worlds")) {
             worlds = this.worldConfiguration.getConfigurationSection("worlds").getKeys(false);
@@ -832,7 +810,7 @@ public class PlotSquared {
             type = PlotAreaType.NORMAL;
         }
         if (type == PlotAreaType.NORMAL) {
-            if (plotAreaManager.getPlotAreas(world, null).length != 0) {
+            if (getPlotAreaManager().getPlotAreas(world, null).length != 0) {
                 debug("World possibly already loaded: " + world);
                 return;
             }
@@ -866,7 +844,7 @@ public class PlotSquared {
                 .log(Captions.PREFIX + "&3 - generator: &7" + baseGenerator + ">" + plotGenerator);
             PlotSquared.log(Captions.PREFIX + "&3 - plotworld: &7" + plotArea.getClass().getName());
             PlotSquared.log(
-                Captions.PREFIX + "&3 - plotAreaManager: &7" + plotManager.getClass().getName());
+                Captions.PREFIX + "&3 - getPlotAreaManager(): &7" + plotManager.getClass().getName());
             if (!this.worldConfiguration.contains(path)) {
                 this.worldConfiguration.createSection(path);
                 worldSection = this.worldConfiguration.getConfigurationSection(path);
@@ -887,7 +865,7 @@ public class PlotSquared {
             }
             ConfigurationSection areasSection = worldSection.getConfigurationSection("areas");
             if (areasSection == null) {
-                if (plotAreaManager.getPlotAreas(world, null).length != 0) {
+                if (getPlotAreaManager().getPlotAreas(world, null).length != 0) {
                     debug("World possibly already loaded: " + world);
                     return;
                 }
@@ -954,7 +932,7 @@ public class PlotSquared {
                 PlotSquared
                     .log(Captions.PREFIX + "&3 - generator: &7" + baseGenerator + ">" + areaGen);
                 PlotSquared.log(Captions.PREFIX + "&3 - plotworld: &7" + pa);
-                PlotSquared.log(Captions.PREFIX + "&3 - plotAreaManager: &7" + pa.getPlotManager());
+                PlotSquared.log(Captions.PREFIX + "&3 - getPlotAreaManager(): &7" + pa.getPlotManager());
                 areaGen.getPlotGenerator().initialize(pa);
                 areaGen.augment(pa);
                 addPlotArea(pa);
@@ -1314,8 +1292,8 @@ public class PlotSquared {
             }
             DBFunc.dbManager = new SQLManager(database, Storage.PREFIX, this.eventDispatcher, this.plotListener, this.worldConfiguration);
             this.plots_tmp = DBFunc.getPlots();
-            if (plotAreaManager instanceof SinglePlotAreaManager) {
+            if (getPlotAreaManager() instanceof SinglePlotAreaManager) {
-                SinglePlotArea area = ((SinglePlotAreaManager) plotAreaManager).getArea();
+                SinglePlotArea area = ((SinglePlotAreaManager) getPlotAreaManager()).getArea();
                 addPlotArea(area);
                 ConfigurationSection section = worldConfiguration.getConfigurationSection("worlds.*");
                 if (section == null) {
@@ -1556,7 +1534,7 @@ public class PlotSquared {
     }
 
     public void forEachPlotRaw(Consumer<Plot> consumer) {
-        for (final PlotArea area : this.plotAreaManager.getAllPlotAreas()) {
+        for (final PlotArea area : this.getPlotAreaManager().getAllPlotAreas()) {
             area.getPlots().forEach(consumer);
         }
         if (this.plots_tmp != null) {
@@ -1573,10 +1551,10 @@ public class PlotSquared {
      * @param chunkCoordinates Chunk coordinates
      * @return True if the chunk uses non-standard generation, false if not
      */
-    public boolean isNonStandardGeneration(@NotNull final String world,
+    public boolean isNonStandardGeneration(@Nonnull final String world,
-        @NotNull final BlockVector2 chunkCoordinates) {
+        @Nonnull final BlockVector2 chunkCoordinates) {
         final Location location = Location.at(world, chunkCoordinates.getBlockX() << 4, 64, chunkCoordinates.getBlockZ() << 4);
-        final PlotArea area = plotAreaManager.getApplicablePlotArea(location);
+        final PlotArea area = getPlotAreaManager().getApplicablePlotArea(location);
         if (area == null) {
             return true;
         }

Core/src/main/java/com/plotsquared/core/backup/Backup.java

@@ -28,7 +28,7 @@ package com.plotsquared.core.backup;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.io.IOException;
 import java.nio.file.Files;

Core/src/main/java/com/plotsquared/core/backup/BackupManager.java

@@ -28,8 +28,8 @@ package com.plotsquared.core.backup;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.nio.file.Path;
 import java.util.Objects;
@@ -45,7 +45,7 @@ public interface BackupManager {
      * @param plot     Plot to perform the automatic backup on
      * @param whenDone Action that runs when the automatic backup has been completed
      */
-    static void backup(@Nullable PlotPlayer player, @NotNull final Plot plot, @NotNull Runnable whenDone) {
+    static void backup(@Nullable PlotPlayer player, @Nonnull final Plot plot, @Nonnull Runnable whenDone) {
         Objects.requireNonNull(PlotSquared.platform()).getBackupManager().automaticBackup(player, plot, whenDone);
     }
 
@@ -56,7 +56,7 @@ public interface BackupManager {
      * @param plot Plot to get the backup profile for
      * @return Backup profile
      */
-    @NotNull BackupProfile getProfile(@NotNull final Plot plot);
+    @Nonnull BackupProfile getProfile(@Nonnull final Plot plot);
 
     /**
      * This will perform an automatic backup of the plot iff the plot has an owner,
@@ -67,14 +67,14 @@ public interface BackupManager {
      * @param plot     Plot to perform the automatic backup on
      * @param whenDone Action that runs when the automatic backup has been completed
      */
-    void automaticBackup(@Nullable PlotPlayer player, @NotNull final Plot plot, @NotNull Runnable whenDone);
+    void automaticBackup(@Nullable PlotPlayer player, @Nonnull final Plot plot, @Nonnull Runnable whenDone);
 
     /**
      * Get the directory in which backups are stored
      *
      * @return Backup directory path
      */
-    @NotNull Path getBackupPath();
+    @Nonnull Path getBackupPath();
 
     /**
      * Get the maximum amount of backups that may be stored for

Core/src/main/java/com/plotsquared/core/backup/BackupProfile.java

@@ -25,7 +25,7 @@
  */
 package com.plotsquared.core.backup;
 
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.nio.file.Path;
 import java.util.List;
@@ -38,7 +38,7 @@ public interface BackupProfile {
      *
      * @return Future that will be completed with available backups
      */
-    @NotNull CompletableFuture<List<Backup>> listBackups();
+    @Nonnull CompletableFuture<List<Backup>> listBackups();
 
     /**
      * Remove all backups stored for this profile
@@ -51,7 +51,7 @@ public interface BackupProfile {
      *
      * @return Folder that contains the backups for this profile
      */
-    @NotNull Path getBackupDirectory();
+    @Nonnull Path getBackupDirectory();
 
     /**
      * Create a backup of the plot. If the profile is at the
@@ -59,7 +59,7 @@ public interface BackupProfile {
      *
      * @return Future that completes with the created backup.
      */
-    @NotNull CompletableFuture<Backup> createBackup();
+    @Nonnull CompletableFuture<Backup> createBackup();
 
     /**
      * Restore a backup
@@ -67,6 +67,6 @@ public interface BackupProfile {
      * @param backup Backup to restore
      * @return Future that completes when the backup has finished
      */
-    @NotNull CompletableFuture<Void> restoreBackup(@NotNull final Backup backup);
+    @Nonnull CompletableFuture<Void> restoreBackup(@Nonnull final Backup backup);
 
 }

Core/src/main/java/com/plotsquared/core/backup/NullBackupManager.java

@@ -29,8 +29,8 @@ import com.google.inject.Singleton;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.nio.file.Path;
 import java.util.Objects;
@@ -40,16 +40,16 @@ import java.util.Objects;
  */
 @Singleton public class NullBackupManager implements BackupManager {
 
-    @Override @NotNull public BackupProfile getProfile(@NotNull Plot plot) {
+    @Override @Nonnull public BackupProfile getProfile(@Nonnull Plot plot) {
         return new NullBackupProfile();
     }
 
     @Override public void automaticBackup(@Nullable PlotPlayer plotPlayer,
-        @NotNull Plot plot, @NotNull Runnable whenDone) {
+        @Nonnull Plot plot, @Nonnull Runnable whenDone) {
         whenDone.run();
     }
 
-    @Override @NotNull public Path getBackupPath() {
+    @Override @Nonnull public Path getBackupPath() {
         return Objects.requireNonNull(PlotSquared.platform()).getDirectory().toPath();
     }
 

Core/src/main/java/com/plotsquared/core/backup/NullBackupProfile.java

@@ -25,7 +25,7 @@
  */
 package com.plotsquared.core.backup;
 
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.nio.file.Path;
@@ -39,22 +39,22 @@ import java.util.concurrent.CompletableFuture;
  */
 public class NullBackupProfile implements BackupProfile {
 
-    @Override @NotNull public CompletableFuture<List<Backup>> listBackups() {
+    @Override @Nonnull public CompletableFuture<List<Backup>> listBackups() {
         return CompletableFuture.completedFuture(Collections.emptyList());
     }
 
     @Override public void destroy(){
     }
 
-    @Override @NotNull public Path getBackupDirectory() {
+    @Override @Nonnull public Path getBackupDirectory() {
         return new File(".").toPath();
     }
 
-    @Override @NotNull public CompletableFuture<Backup> createBackup() {
+    @Override @Nonnull public CompletableFuture<Backup> createBackup() {
         throw new UnsupportedOperationException("Cannot create backup of an unowned plot");
     }
 
-    @Override @NotNull public CompletableFuture<Void> restoreBackup(@NotNull final Backup backup) {
+    @Override @Nonnull public CompletableFuture<Void> restoreBackup(@Nonnull final Backup backup) {
         return CompletableFuture.completedFuture(null);
     }
 

Core/src/main/java/com/plotsquared/core/backup/PlayerBackupProfile.java

@@ -33,7 +33,7 @@ import com.plotsquared.core.plot.schematic.Schematic;
 import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -59,8 +59,8 @@ public class PlayerBackupProfile implements BackupProfile {
     private final BackupManager backupManager;
     private final SchematicHandler schematicHandler;
 
-    @Inject public PlayerBackupProfile(@Assisted @NotNull final UUID owner, @Assisted @NotNull final Plot plot,
+    @Inject public PlayerBackupProfile(@Assisted @Nonnull final UUID owner, @Assisted @Nonnull final Plot plot,
-        @NotNull final BackupManager backupManager, @NotNull final SchematicHandler schematicHandler) {
+        @Nonnull final BackupManager backupManager, @Nonnull final SchematicHandler schematicHandler) {
         this.owner = owner;
         this.plot = plot;
         this.backupManager = backupManager;
@@ -70,12 +70,12 @@ public class PlayerBackupProfile implements BackupProfile {
     private volatile List<Backup> backupCache;
     private final Object backupLock = new Object();
 
-    private static boolean isValidFile(@NotNull final Path path) {
+    private static boolean isValidFile(@Nonnull final Path path) {
         final String name = path.getFileName().toString();
         return name.endsWith(".schem") || name.endsWith(".schematic");
     }
 
-    @Override @NotNull public CompletableFuture<List<Backup>> listBackups() {
+    @Override @Nonnull public CompletableFuture<List<Backup>> listBackups() {
         synchronized (this.backupLock) {
             if (this.backupCache != null) {
                 return CompletableFuture.completedFuture(backupCache);
@@ -121,12 +121,12 @@ public class PlayerBackupProfile implements BackupProfile {
         });
     }
 
-    @NotNull public Path getBackupDirectory() {
+    @Nonnull public Path getBackupDirectory() {
         return resolve(resolve(resolve(backupManager.getBackupPath(), Objects.requireNonNull(plot.getArea().toString(), "plot area id")),
             Objects.requireNonNull(plot.getId().toDashSeparatedString(), "plot id")), Objects.requireNonNull(owner.toString(), "owner"));
     }
 
-    private static Path resolve(@NotNull final Path parent, final String child) {
+    private static Path resolve(@Nonnull final Path parent, final String child) {
         Path path = parent;
         try {
             if (!Files.exists(parent)) {
@@ -142,7 +142,7 @@ public class PlayerBackupProfile implements BackupProfile {
         return path;
     }
 
-    @Override @NotNull public CompletableFuture<Backup> createBackup() {
+    @Override @Nonnull public CompletableFuture<Backup> createBackup() {
         final CompletableFuture<Backup> future = new CompletableFuture<>();
         this.listBackups().thenAcceptAsync(backups -> {
             synchronized (this.backupLock) {
@@ -162,7 +162,7 @@ public class PlayerBackupProfile implements BackupProfile {
         return future;
     }
 
-    @Override @NotNull public CompletableFuture<Void> restoreBackup(@NotNull final Backup backup) {
+    @Override @Nonnull public CompletableFuture<Void> restoreBackup(@Nonnull final Backup backup) {
         final CompletableFuture<Void> future = new CompletableFuture<>();
         if (backup.getFile() == null || !Files.exists(backup.getFile())) {
             future.completeExceptionally(new IllegalArgumentException("The specific backup does not exist"));

Core/src/main/java/com/plotsquared/core/backup/SimpleBackupManager.java

@@ -39,8 +39,8 @@ import com.plotsquared.core.util.task.TaskManager;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -60,7 +60,7 @@ import java.util.concurrent.TimeUnit;
         .expireAfterAccess(3, TimeUnit.MINUTES).build();
     private final PlayerBackupProfileFactory playerBackupProfileFactory;
 
-    @Inject public SimpleBackupManager(@NotNull final PlayerBackupProfileFactory playerBackupProfileFactory) throws Exception {
+    @Inject public SimpleBackupManager(@Nonnull final PlayerBackupProfileFactory playerBackupProfileFactory) throws Exception {
         this.playerBackupProfileFactory = playerBackupProfileFactory;
         this.backupPath = Objects.requireNonNull(PlotSquared.platform()).getDirectory().toPath().resolve("backups");
         if (!Files.exists(backupPath)) {
@@ -70,7 +70,7 @@ import java.util.concurrent.TimeUnit;
         this.backupLimit = Settings.Backup.BACKUP_LIMIT;
     }
 
-    @Override @NotNull public BackupProfile getProfile(@NotNull final Plot plot) {
+    @Override @Nonnull public BackupProfile getProfile(@Nonnull final Plot plot) {
         if (plot.hasOwner() && !plot.isMerged()) {
             try {
                 return backupProfileCache.get(new PlotCacheKey(plot), () -> this.playerBackupProfileFactory.create(plot.getOwnerAbs(), plot));
@@ -83,7 +83,7 @@ import java.util.concurrent.TimeUnit;
         return new NullBackupProfile();
     }
 
-    @Override public void automaticBackup(@Nullable PlotPlayer player, @NotNull final Plot plot, @NotNull Runnable whenDone) {
+    @Override public void automaticBackup(@Nullable PlotPlayer player, @Nonnull final Plot plot, @Nonnull Runnable whenDone) {
         final BackupProfile profile;
         if (!this.shouldAutomaticallyBackup() || (profile = getProfile(plot)) instanceof NullBackupProfile) {
             whenDone.run();

Core/src/main/java/com/plotsquared/core/command/Add.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.database.DBFunc;
 import com.plotsquared.core.player.PlotPlayer;
@@ -35,7 +36,7 @@ import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.TabCompletions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -54,7 +55,7 @@ public class Add extends Command {
 
     private final EventDispatcher eventDispatcher;
     
-    public Add(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Add(@Nonnull final EventDispatcher eventDispatcher) {
         super(MainCommand.getInstance(), true);
         this.eventDispatcher = eventDispatcher;
     }

Core/src/main/java/com/plotsquared/core/command/Area.java

@@ -71,7 +71,7 @@ import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.regions.Region;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -100,13 +100,13 @@ public class Area extends SubCommand {
     private final WorldUtil worldUtil;
     private final RegionManager regionManager;
 
-    @Inject public Area(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Area(@Nonnull final PlotAreaManager plotAreaManager,
-                        @WorldConfig @NotNull final YamlConfiguration worldConfiguration,
+                        @WorldConfig @Nonnull final YamlConfiguration worldConfiguration,
-                        @WorldFile @NotNull final File worldFile,
+                        @WorldFile @Nonnull final File worldFile,
-                        @NotNull final HybridPlotWorldFactory hybridPlotWorldFactory,
+                        @Nonnull final HybridPlotWorldFactory hybridPlotWorldFactory,
-                        @NotNull final SetupUtils setupUtils,
+                        @Nonnull final SetupUtils setupUtils,
-                        @NotNull final WorldUtil worldUtil,
+                        @Nonnull final WorldUtil worldUtil,
-                        @NotNull final RegionManager regionManager) {
+                        @Nonnull final RegionManager regionManager) {
         this.plotAreaManager = plotAreaManager;
         this.worldConfiguration = worldConfiguration;
         this.worldFile = worldFile;

Core/src/main/java/com/plotsquared/core/command/Auto.java

@@ -26,6 +26,7 @@
 package com.plotsquared.core.command;
 
 import com.google.common.primitives.Ints;
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
@@ -49,8 +50,8 @@ import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.AutoClaimFinishTask;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.ArrayList;
 import java.util.Set;
@@ -66,10 +67,14 @@ public class Auto extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
     private final EventDispatcher eventDispatcher;
+    private final EconHandler econHandler;
 
-    public Auto(@NotNull final PlotAreaManager plotAreaManager, @NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Auto(@Nonnull final PlotAreaManager plotAreaManager,
+                        @Nonnull final EventDispatcher eventDispatcher,
+                        @Nullable final EconHandler econHandler) {
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
+        this.econHandler = econHandler;
     }
     
     @Deprecated public static PlotId getNextPlotId(PlotId id, int step) {
@@ -147,7 +152,7 @@ public class Auto extends SubCommand {
         player.setMeta(Auto.class.getName(), true);
         autoClaimFromDatabase(player, area, start, new RunnableVal<Plot>() {
             @Override public void run(final Plot plot) {
-                TaskManager.IMP.sync(new AutoClaimFinishTask(player, plot, area, schematic,
+                TaskManager.getImplementation().sync(new AutoClaimFinishTask(player, plot, area, schematic,
                     PlotSquared.get().getEventDispatcher()));
             }
         });
@@ -169,10 +174,9 @@ public class Auto extends SubCommand {
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
         PlotArea plotarea = player.getApplicablePlotArea();
         if (plotarea == null) {
-            if (EconHandler.getEconHandler() != null) {
+            if (this.econHandler != null) {
                 for (PlotArea area : this.plotAreaManager.getAllPlotAreas()) {
-                    if (EconHandler.getEconHandler()
+                    if (this.econHandler.hasPermission(area.getWorldName(), player.getName(), "plots.auto")) {
-                        .hasPermission(area.getWorldName(), player.getName(), "plots.auto")) {
                         if (plotarea != null) {
                             plotarea = null;
                             break;
@@ -265,18 +269,18 @@ public class Auto extends SubCommand {
                 return true;
             }
         }
-        if (EconHandler.getEconHandler() != null && plotarea.useEconomy()) {
+        if (this.econHandler != null && plotarea.useEconomy()) {
             Expression<Double> costExp = plotarea.getPrices().get("claim");
             double cost = costExp.evaluate((double) (Settings.Limit.GLOBAL ?
                 player.getPlotCount() :
                 player.getPlotCount(plotarea.getWorldName())));
             cost = (size_x * size_z) * cost;
             if (cost > 0d) {
-                if (!force && EconHandler.getEconHandler().getMoney(player) < cost) {
+                if (!force && this.econHandler.getMoney(player) < cost) {
                     sendMessage(player, Captions.CANNOT_AFFORD_PLOT, "" + cost);
                     return true;
                 }
-                EconHandler.getEconHandler().withdrawMoney(player, cost);
+                this.econHandler.withdrawMoney(player, cost);
                 sendMessage(player, Captions.REMOVED_BALANCE, cost + "");
             }
         }

Core/src/main/java/com/plotsquared/core/command/Backup.java

@@ -36,7 +36,7 @@ import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.nio.file.Files;
 import java.time.Instant;
@@ -64,7 +64,7 @@ public final class Backup extends Command {
 
     private final BackupManager backupManager;
 
-    @Inject public Backup(@NotNull final BackupManager backupManager) {
+    @Inject public Backup(@Nonnull final BackupManager backupManager) {
         super(MainCommand.getInstance(), true);
         this.backupManager = backupManager;
     }

Core/src/main/java/com/plotsquared/core/command/Buy.java

@@ -39,9 +39,9 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nullable;
-import org.jetbrains.annotations.Nullable;
 
+import javax.annotation.Nonnull;
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 
@@ -56,7 +56,7 @@ public class Buy extends Command {
     private final EventDispatcher eventDispatcher;
     private final EconHandler econHandler;
 
-    @Inject public Buy(@NotNull final EventDispatcher eventDispatcher,
+    @Inject public Buy(@Nonnull final EventDispatcher eventDispatcher,
                        @Nullable final EconHandler econHandler) {
         super(MainCommand.getInstance(), true);
         this.eventDispatcher = eventDispatcher;

Core/src/main/java/com/plotsquared/core/command/Caps.java

@@ -71,7 +71,7 @@ public class Caps extends SubCommand {
     }
 
     private <T extends PlotFlag<Integer, T>> void sendFormatted(final Plot plot,
-        final PlotPlayer player, final Class<T> capFlag, final int[] countedEntities,
+        final PlotPlayer<?> player, final Class<T> capFlag, final int[] countedEntities,
         final String name, final int type) {
         final int current = countedEntities[type];
         final int max = plot.getFlag(capFlag);

Core/src/main/java/com/plotsquared/core/command/Claim.java

@@ -46,8 +46,8 @@ import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 @CommandDeclaration(command = "claim",
     aliases = "c",
@@ -61,7 +61,7 @@ public class Claim extends SubCommand {
     private final EventDispatcher eventDispatcher;
     private final EconHandler econHandler;
     
-    @Inject public Claim(@NotNull final EventDispatcher eventDispatcher,
+    @Inject public Claim(@Nonnull final EventDispatcher eventDispatcher,
                          @Nullable final EconHandler econHandler) {
         this.eventDispatcher = eventDispatcher;
         this.econHandler = econHandler;

Core/src/main/java/com/plotsquared/core/command/Clear.java

@@ -42,7 +42,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.concurrent.CompletableFuture;
 
@@ -61,8 +61,8 @@ public class Clear extends Command {
     private final EventDispatcher eventDispatcher;
     private final GlobalBlockQueue blockQueue;
 
-    @Inject public Clear(@NotNull final EventDispatcher eventDispatcher,
+    @Inject public Clear(@Nonnull final EventDispatcher eventDispatcher,
-                         @NotNull final GlobalBlockQueue blockQueue) {
+                         @Nonnull final GlobalBlockQueue blockQueue) {
         super(MainCommand.getInstance(), true);
         this.eventDispatcher = eventDispatcher;
         this.blockQueue = blockQueue;

Core/src/main/java/com/plotsquared/core/command/Command.java

@@ -36,7 +36,7 @@ import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
 import lombok.SneakyThrows;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -582,7 +582,7 @@ public abstract class Command {
         return object;
     }
 
-    @SneakyThrows protected static void sneakyThrow(@NotNull final Throwable throwable) {
+    @SneakyThrows protected static void sneakyThrow(@Nonnull final Throwable throwable) {
         throw throwable;
     }
 

Core/src/main/java/com/plotsquared/core/command/Condense.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
@@ -34,7 +35,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -56,9 +57,12 @@ public class Condense extends SubCommand {
     public static boolean TASK = false;
 
     private final PlotAreaManager plotAreaManager;
+    private final WorldUtil worldUtil;
 
-    public Condense(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Condense(@Nonnull final PlotAreaManager plotAreaManager,
+                            @Nonnull final WorldUtil worldUtil) {
         this.plotAreaManager = plotAreaManager;
+        this.worldUtil = worldUtil;
     }
 
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
@@ -67,7 +71,7 @@ public class Condense extends SubCommand {
             return false;
         }
         PlotArea area = this.plotAreaManager.getPlotAreaByString(args[0]);
-        if (area == null || !WorldUtil.IMP.isWorld(area.getWorldName())) {
+        if (area == null || !this.worldUtil.isWorld(area.getWorldName())) {
             MainUtil.sendMessage(player, "INVALID AREA");
             return false;
         }

Core/src/main/java/com/plotsquared/core/command/Continue.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.events.PlotFlagRemoveEvent;
@@ -36,7 +37,7 @@ import com.plotsquared.core.plot.flag.implementations.DoneFlag;
 import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "continue",
     description = "Continue a plot that was previously marked as done",
@@ -47,7 +48,7 @@ public class Continue extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
     
-    public Continue(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Continue(@Nonnull final EventDispatcher eventDispatcher) {
         this.eventDispatcher = eventDispatcher;
     }
     

Core/src/main/java/com/plotsquared/core/command/CreateRoadSchematic.java

@@ -33,7 +33,7 @@ import com.plotsquared.core.location.Location;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.util.MainUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "createroadschematic",
     aliases = {"crs"},
@@ -46,7 +46,7 @@ public class CreateRoadSchematic extends SubCommand {
 
     private final HybridUtils hybridUtils;
 
-    @Inject public CreateRoadSchematic(@NotNull final HybridUtils hybridUtils) {
+    @Inject public CreateRoadSchematic(@Nonnull final HybridUtils hybridUtils) {
         this.hybridUtils = hybridUtils;
     }
 

Core/src/main/java/com/plotsquared/core/command/DatabaseCommand.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.inject.annotations.WorldConfig;
 import com.plotsquared.core.configuration.file.YamlConfiguration;
@@ -44,7 +45,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.sql.SQLException;
@@ -68,8 +69,10 @@ public class DatabaseCommand extends SubCommand {
     private final PlotListener plotListener;
     private final YamlConfiguration worldConfiguration;
 
-    public DatabaseCommand(@NotNull final PlotAreaManager plotAreaManager, @NotNull final EventDispatcher eventDispatcher,
+    @Inject public DatabaseCommand(@Nonnull final PlotAreaManager plotAreaManager,
-        @NotNull final PlotListener plotListener, @WorldConfig @NotNull final YamlConfiguration worldConfiguration) {
+                                   @Nonnull final EventDispatcher eventDispatcher,
+                                   @Nonnull final PlotListener plotListener,
+                                   @WorldConfig @Nonnull final YamlConfiguration worldConfiguration) {
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
         this.plotListener = plotListener;

Core/src/main/java/com/plotsquared/core/command/Debug.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.player.PlotPlayer;
@@ -38,7 +39,7 @@ import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.task.TaskManager;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.sk89q.worldedit.world.entity.EntityType;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Comparator;
@@ -52,9 +53,12 @@ import java.util.Map;
 public class Debug extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
+    private final RegionManager regionManager;
 
-    public Debug(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Debug(@Nonnull final PlotAreaManager plotAreaManager,
+                         @Nonnull final RegionManager regionManager) {
         this.plotAreaManager = plotAreaManager;
+        this.regionManager = regionManager;
     }
 
     @Override public boolean onCommand(PlotPlayer<?> player, String[] args) {
@@ -70,8 +74,7 @@ public class Debug extends SubCommand {
             final long start = System.currentTimeMillis();
             MainUtil.sendMessage(player, "Fetching loaded chunks...");
             TaskManager.runTaskAsync(() -> MainUtil.sendMessage(player,
-                "Loaded chunks: " + RegionManager.manager
+                "Loaded chunks: " + this.regionManager.getChunkChunks(player.getLocation().getWorldName()).size() + "(" + (
-                    .getChunkChunks(player.getLocation().getWorldName()).size() + "(" + (
                     System.currentTimeMillis() - start) + "ms) using thread: " + Thread
                     .currentThread().getName()));
             return true;

Core/src/main/java/com/plotsquared/core/command/DebugExec.java

@@ -26,6 +26,7 @@
 package com.plotsquared.core.command;
 
 import com.google.common.io.Files;
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
@@ -62,8 +63,8 @@ import com.plotsquared.core.util.task.RunnableVal3;
 import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.world.block.BlockState;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import javax.script.Bindings;
 import javax.script.ScriptContext;
@@ -90,35 +91,39 @@ public class DebugExec extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final EventDispatcher eventDispatcher;
     private final WorldEdit worldEdit;
+    private final GlobalBlockQueue blockQueue;
+    private final SchematicHandler schematicHandler;
+    private final EconHandler econHandler;
+    private final ChunkManager chunkManager;
+    private final WorldUtil worldUtil;
+    private final SetupUtils setupUtils;
+    private final HybridUtils hybridUtils;
+
     private ScriptEngine engine;
     private Bindings scope;
 
-    public DebugExec(@NotNull final PlotAreaManager plotAreaManager, @NotNull final EventDispatcher eventDispatcher,
+    @Inject public DebugExec(@Nonnull final PlotAreaManager plotAreaManager,
-        @Nullable final WorldEdit worldEdit) {
+                     @Nonnull final EventDispatcher eventDispatcher,
+                     @Nullable final WorldEdit worldEdit,
+                     @Nonnull final GlobalBlockQueue blockQueue,
+                     @Nonnull final SchematicHandler schematicHandler,
+                     @Nullable final EconHandler econHandler,
+                     @Nonnull final ChunkManager chunkManager,
+                     @Nonnull final WorldUtil worldUtil,
+                     @Nonnull final SetupUtils setupUtils,
+                     @Nonnull final HybridUtils hybridUtils) {
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
         this.worldEdit = worldEdit;
+        this.blockQueue = blockQueue;
+        this.schematicHandler = schematicHandler;
+        this.econHandler = econHandler;
+        this.chunkManager = chunkManager;
+        this.worldUtil = worldUtil;
+        this.setupUtils = setupUtils;
+        this.hybridUtils = hybridUtils;
+
         init();
-/*
-        try {
-            if (PlotSquared.get() != null) {
-                File file = new File(PlotSquared.imp().getDirectory(),
-                    Settings.Paths.SCRIPTS + File.separator + "start.js");
-                if (file.exists()) {
-                    init();
-                    String script = StringMan.join(Files.readLines(new File(new File(
-                            PlotSquared.imp().getDirectory() + File.separator
-                                + Settings.Paths.SCRIPTS), "start.js"), StandardCharsets.UTF_8),
-                        System.getProperty("line.separator"));
-                    this.scope.put("THIS", this);
-                    this.scope.put("PlotPlayer", ConsolePlayer.getConsole());
-                    this.engine.eval(script, this.scope);
-                }
-            }
-        } catch (IOException | ScriptException ignored) {
-            ignored.printStackTrace();
-        }
-*/
     }
 
     public ScriptEngine getEngine() {
@@ -167,21 +172,21 @@ public class DebugExec extends SubCommand {
 
         // Instances
         this.scope.put("PS", PlotSquared.get());
-        this.scope.put("GlobalBlockQueue", GlobalBlockQueue.IMP);
+        this.scope.put("GlobalBlockQueue", this.blockQueue);
         this.scope.put("ExpireManager", ExpireManager.IMP);
         if (this.worldEdit != null) {
             this.scope.put("WEManager", new WEManager());
         }
-        this.scope.put("TaskManager", TaskManager.IMP);
+        this.scope.put("TaskManager", TaskManager.getImplementation());
         this.scope.put("ConsolePlayer", ConsolePlayer.getConsole());
-        this.scope.put("SchematicHandler", SchematicHandler.manager);
+        this.scope.put("SchematicHandler", this.schematicHandler);
-        this.scope.put("ChunkManager", ChunkManager.manager);
+        this.scope.put("ChunkManager", this.chunkManager);
-        this.scope.put("BlockManager", WorldUtil.IMP);
+        this.scope.put("BlockManager", this.worldUtil);
-        this.scope.put("SetupUtils", SetupUtils.manager);
+        this.scope.put("SetupUtils", this.setupUtils);
         this.scope.put("EventUtil", this.eventDispatcher);
-        this.scope.put("EconHandler", EconHandler.getEconHandler());
+        this.scope.put("EconHandler", this.econHandler);
         this.scope.put("DBFunc", DBFunc.dbManager);
-        this.scope.put("HybridUtils", HybridUtils.manager);
+        this.scope.put("HybridUtils", this.hybridUtils);
         this.scope.put("IMP", PlotSquared.platform());
         this.scope.put("MainCommand", MainCommand.getInstance());
 
@@ -213,7 +218,7 @@ public class DebugExec extends SubCommand {
                         return true;
                     }
                     MainUtil.sendMessage(player, "$1Starting task...");
-                    HybridUtils.manager.analyzePlot(plot, new RunnableVal<PlotAnalysis>() {
+                    this.hybridUtils.analyzePlot(plot, new RunnableVal<PlotAnalysis>() {
                         @Override public void run(PlotAnalysis value) {
                             MainUtil.sendMessage(player,
                                 "$1Done: $2Use $3/plot debugexec analyze$2 for more information");
@@ -279,10 +284,9 @@ public class DebugExec extends SubCommand {
                     }
                     boolean result;
                     if (HybridUtils.regions != null) {
-                        result = HybridUtils.manager
+                        result = this.hybridUtils.scheduleRoadUpdate(area, HybridUtils.regions, 0, new HashSet<>());
-                            .scheduleRoadUpdate(area, HybridUtils.regions, 0, new HashSet<>());
                     } else {
-                        result = HybridUtils.manager.scheduleRoadUpdate(area, 0);
+                        result = this.hybridUtils.scheduleRoadUpdate(area, 0);
                     }
                     if (!result) {
                         MainUtil.sendMessage(player,

Core/src/main/java/com/plotsquared/core/command/DebugImportWorlds.java

@@ -26,6 +26,7 @@
 package com.plotsquared.core.command;
 
 import com.google.common.base.Charsets;
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.player.PlotPlayer;
@@ -36,7 +37,7 @@ import com.plotsquared.core.plot.world.SinglePlotAreaManager;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.util.UUID;
@@ -50,10 +51,13 @@ import java.util.concurrent.CompletableFuture;
 public class DebugImportWorlds extends Command {
 
     private final PlotAreaManager plotAreaManager;
+    private final WorldUtil worldUtil;
 
-    public DebugImportWorlds(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public DebugImportWorlds(@Nonnull final PlotAreaManager plotAreaManager,
+                                     @Nonnull final WorldUtil worldUtil) {
         super(MainCommand.getInstance(), true);
         this.plotAreaManager = plotAreaManager;
+        this.worldUtil = worldUtil;
     }
 
     @Override
@@ -75,7 +79,7 @@ public class DebugImportWorlds extends Command {
         }
         for (File folder : container.listFiles()) {
             String name = folder.getName();
-            if (!WorldUtil.IMP.isWorld(name) && PlotId.fromStringOrNull(name) == null) {
+            if (!this.worldUtil.isWorld(name) && PlotId.fromStringOrNull(name) == null) {
                 UUID uuid;
                 if (name.length() > 16) {
                     uuid = UUID.fromString(name);

Core/src/main/java/com/plotsquared/core/command/DebugPaste.java

@@ -27,6 +27,7 @@ package com.plotsquared.core.command;
 
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.inject.annotations.ConfigFile;
 import com.plotsquared.core.inject.annotations.WorldFile;
@@ -37,8 +38,8 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.PremiumVerification;
 import com.plotsquared.core.util.net.IncendoPaster;
 import com.plotsquared.core.util.task.TaskManager;
-import lombok.NonNull;
+
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -65,13 +66,13 @@ public class DebugPaste extends SubCommand {
     private final File configFile;
     private final File worldfile;
 
-    public DebugPaste(@ConfigFile @NotNull final File configFile,
+    @Inject public DebugPaste(@ConfigFile @Nonnull final File configFile,
-                      @WorldFile @NotNull final File worldFile) {
+                              @WorldFile @Nonnull final File worldFile) {
         this.configFile = configFile;
         this.worldfile = worldFile;
     }
 
-    private static String readFile(@NonNull final File file) throws IOException {
+    private static String readFile(@Nonnull final File file) throws IOException {
         final List<String> lines;
         try (final BufferedReader reader = new BufferedReader(new FileReader(file))) {
             lines = reader.lines().collect(Collectors.toList());

Core/src/main/java/com/plotsquared/core/command/DebugRoadRegen.java

@@ -35,7 +35,7 @@ import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotManager;
 import com.plotsquared.core.util.MainUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Arrays;
 
@@ -51,7 +51,7 @@ public class DebugRoadRegen extends SubCommand {
 
     private final HybridUtils hybridUtils;
 
-    @Inject public DebugRoadRegen(@NotNull final HybridUtils hybridUtils) {
+    @Inject public DebugRoadRegen(@Nonnull final HybridUtils hybridUtils) {
         this.hybridUtils = hybridUtils;
     }
 

Core/src/main/java/com/plotsquared/core/command/Delete.java

@@ -39,8 +39,8 @@ import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 
 @CommandDeclaration(command = "delete",
@@ -56,7 +56,7 @@ public class Delete extends SubCommand {
     private final EventDispatcher eventDispatcher;
     private final EconHandler econHandler;
 
-    @Inject public Delete(@NotNull final EventDispatcher eventDispatcher,
+    @Inject public Delete(@Nonnull final EventDispatcher eventDispatcher,
                           @Nullable final EconHandler econHandler) {
         this.eventDispatcher = eventDispatcher;
         this.econHandler = econHandler;

Core/src/main/java/com/plotsquared/core/command/Deny.java

@@ -39,7 +39,7 @@ import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.TabCompletions;
 import com.plotsquared.core.util.WorldUtil;
 import com.sk89q.worldedit.world.gamemode.GameModes;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -58,9 +58,9 @@ public class Deny extends SubCommand {
     private final EventDispatcher eventDispatcher;
     private final WorldUtil worldUtil;
 
-    @Inject public Deny(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Deny(@Nonnull final PlotAreaManager plotAreaManager,
-                        @NotNull final EventDispatcher eventDispatcher,
+                        @Nonnull final EventDispatcher eventDispatcher,
-                        @NotNull final WorldUtil worldUtil) {
+                        @Nonnull final WorldUtil worldUtil) {
         super(Argument.PlayerName);
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;

Core/src/main/java/com/plotsquared/core/command/Desc.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.events.PlotFlagAddEvent;
 import com.plotsquared.core.events.PlotFlagRemoveEvent;
@@ -34,7 +35,7 @@ import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.flag.implementations.DescriptionFlag;
 import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "setdescription",
     permission = "plots.set.desc",
@@ -47,7 +48,7 @@ public class Desc extends SetCommand {
 
     private final EventDispatcher eventDispatcher;
     
-    public Desc(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Desc(@Nonnull final EventDispatcher eventDispatcher) {
         this.eventDispatcher = eventDispatcher;
     }
     

Core/src/main/java/com/plotsquared/core/command/Dislike.java

@@ -25,8 +25,9 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.player.PlotPlayer;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "dislike",
     permission = "plots.dislike",
@@ -38,7 +39,7 @@ public class Dislike extends SubCommand {
 
     private final Like like;
 
-    public Dislike(@NotNull final Like like) {
+    @Inject public Dislike(@Nonnull final Like like) {
         this.like = like;
     }
 

Core/src/main/java/com/plotsquared/core/command/Done.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.events.PlotDoneEvent;
@@ -42,7 +43,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "done",
     aliases = {"submit"},
@@ -53,9 +54,12 @@ import org.jetbrains.annotations.NotNull;
 public class Done extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
+    private final HybridUtils hybridUtils;
 
-    public Done(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Done(@Nonnull final EventDispatcher eventDispatcher,
+                        @Nonnull final HybridUtils hybridUtils) {
         this.eventDispatcher = eventDispatcher;
+        this.hybridUtils = hybridUtils;
     }
     
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
@@ -90,7 +94,7 @@ public class Done extends SubCommand {
             finish(plot, player, true);
             plot.removeRunning();
         } else {
-            HybridUtils.manager.analyzePlot(plot, new RunnableVal<PlotAnalysis>() {
+            this.hybridUtils.analyzePlot(plot, new RunnableVal<PlotAnalysis>() {
                 @Override public void run(PlotAnalysis value) {
                     plot.removeRunning();
                     boolean result =

Core/src/main/java/com/plotsquared/core/command/Download.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.player.PlotPlayer;
@@ -38,7 +39,7 @@ import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.sk89q.jnbt.CompoundTag;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.net.URL;
 
@@ -52,9 +53,15 @@ import java.net.URL;
 public class Download extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
+    private final SchematicHandler schematicHandler;
+    private final WorldUtil worldUtil;
 
-    public Download(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Download(@Nonnull final PlotAreaManager plotAreaManager,
+                            @Nonnull final SchematicHandler schematicHandler,
+                            @Nonnull final WorldUtil worldUtil) {
         this.plotAreaManager = plotAreaManager;
+        this.schematicHandler = schematicHandler;
+        this.worldUtil = worldUtil;
     }
 
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
@@ -91,10 +98,10 @@ public class Download extends SubCommand {
                 return false;
             }
             plot.addRunning();
-            SchematicHandler.manager.getCompoundTag(plot, new RunnableVal<CompoundTag>() {
+            this.schematicHandler.getCompoundTag(plot, new RunnableVal<CompoundTag>() {
                 @Override public void run(CompoundTag value) {
                     plot.removeRunning();
-                    SchematicHandler.manager.upload(value, null, null, new RunnableVal<URL>() {
+                    schematicHandler.upload(value, null, null, new RunnableVal<URL>() {
                         @Override public void run(URL url) {
                             if (url == null) {
                                 MainUtil.sendMessage(player, Captions.GENERATING_LINK_FAILED);
@@ -113,8 +120,8 @@ public class Download extends SubCommand {
             }
             MainUtil.sendMessage(player, Captions.MCA_FILE_SIZE);
             plot.addRunning();
-            WorldUtil.IMP.saveWorld(world);
+            this.worldUtil.saveWorld(world);
-            WorldUtil.IMP.upload(plot, null, null, new RunnableVal<URL>() {
+            this.worldUtil.upload(plot, null, null, new RunnableVal<URL>() {
                 @Override public void run(URL url) {
                     plot.removeRunning();
                     if (url == null) {

Core/src/main/java/com/plotsquared/core/command/FlagCommand.java

@@ -50,8 +50,8 @@ import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.helpmenu.HelpMenu;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import javax.annotation.Nonnull;
 import java.util.ArrayList;
@@ -87,7 +87,7 @@ public final class FlagCommand extends Command {
     }
 
     private static boolean checkPermValue(@Nonnull final PlotPlayer player,
-        @NotNull final PlotFlag<?, ?> flag, @NotNull String key, @NotNull String value) {
+        @Nonnull final PlotFlag<?, ?> flag, @Nonnull String key, @Nonnull String value) {
         key = key.toLowerCase();
         value = value.toLowerCase();
         String perm = CaptionUtility
@@ -152,7 +152,7 @@ public final class FlagCommand extends Command {
      *
      * @return true if the player is allowed to modify the flags at their current location
      */
-    private static boolean checkRequirements(@NotNull final PlotPlayer player) {
+    private static boolean checkRequirements(@Nonnull final PlotPlayer player) {
         final Location location = player.getLocation();
         final Plot plot = location.getPlotAbs();
         if (plot == null) {
@@ -180,8 +180,8 @@ public final class FlagCommand extends Command {
      * @param arg    String to extract flag from
      * @return The flag, if found, else null
      */
-    @Nullable private static PlotFlag<?, ?> getFlag(@NotNull final PlotPlayer player,
+    @Nullable private static PlotFlag<?, ?> getFlag(@Nonnull final PlotPlayer player,
-        @NotNull final String arg) {
+        @Nonnull final String arg) {
         if (arg != null && arg.length() > 0) {
             final PlotFlag<?, ?> flag = GlobalFlagContainer.getInstance().getFlagFromString(arg);
             if (flag instanceof InternalFlag || flag == null) {

Core/src/main/java/com/plotsquared/core/command/HomeCommand.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.events.TeleportCause;
 import com.plotsquared.core.player.PlotPlayer;
@@ -40,7 +41,7 @@ import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.query.SortingStrategy;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -58,13 +59,13 @@ public class HomeCommand extends Command {
 
     private final PlotAreaManager plotAreaManager;
 
-    public HomeCommand(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public HomeCommand(@Nonnull final PlotAreaManager plotAreaManager) {
         super(MainCommand.getInstance(), true);
         this.plotAreaManager = plotAreaManager;
     }
 
-    private void home(@NotNull final PlotPlayer<?> player,
+    private void home(@Nonnull final PlotPlayer<?> player,
-                      @NotNull final PlotQuery query, final int page,
+                      @Nonnull final PlotQuery query, final int page,
                       final RunnableVal3<Command, Runnable, Runnable> confirm,
                       final RunnableVal2<Command, CommandResult> whenDone) {
         List<Plot> plots = query.asList();
@@ -86,7 +87,7 @@ public class HomeCommand extends Command {
         }), () -> whenDone.run(HomeCommand.this, CommandResult.FAILURE));
     }
 
-    @NotNull private PlotQuery query(@NotNull final PlotPlayer<?> player) {
+    @Nonnull private PlotQuery query(@Nonnull final PlotPlayer<?> player) {
         // everything plots need to have in common here
         return PlotQuery.newQuery().ownedBy(player);
     }

Core/src/main/java/com/plotsquared/core/command/Kick.java

@@ -37,7 +37,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.TabCompletions;
 import com.plotsquared.core.util.WorldUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -58,8 +58,8 @@ public class Kick extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final WorldUtil worldUtil;
 
-    @Inject public Kick(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Kick(@Nonnull final PlotAreaManager plotAreaManager,
-                        @NotNull final WorldUtil worldUtil) {
+                        @Nonnull final WorldUtil worldUtil) {
         super(Argument.PlayerName);
         this.plotAreaManager = plotAreaManager;
         this.worldUtil = worldUtil;

Core/src/main/java/com/plotsquared/core/command/Leave.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
@@ -32,7 +33,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
@@ -47,7 +48,7 @@ public class Leave extends Command {
     
     private final EventDispatcher eventDispatcher;
     
-    public Leave(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Leave(@Nonnull final EventDispatcher eventDispatcher) {
         super(MainCommand.getInstance(), true);
         this.eventDispatcher = eventDispatcher;
     }

Core/src/main/java/com/plotsquared/core/command/Like.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
@@ -39,7 +40,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -57,7 +58,7 @@ public class Like extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
     
-    public Like(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Like(@Nonnull final EventDispatcher eventDispatcher) {
         this.eventDispatcher = eventDispatcher;
     }
     

Core/src/main/java/com/plotsquared/core/command/ListCmd.java

@@ -49,8 +49,8 @@ import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.query.SortingStrategy;
 import com.plotsquared.core.util.task.RunnableVal3;
 import com.plotsquared.core.uuid.UUIDMapping;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -76,7 +76,7 @@ public class ListCmd extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final EconHandler econHandler;
 
-    @Inject public ListCmd(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public ListCmd(@Nonnull final PlotAreaManager plotAreaManager,
                            @Nullable final EconHandler econHandler) {
         this.plotAreaManager = plotAreaManager;
         this.econHandler = econHandler;

Core/src/main/java/com/plotsquared/core/command/Load.java

@@ -39,7 +39,7 @@ import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -57,8 +57,8 @@ public class Load extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final SchematicHandler schematicHandler;
 
-    @Inject public Load(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Load(@Nonnull final PlotAreaManager plotAreaManager,
-                        @NotNull final SchematicHandler schematicHandler) {
+                        @Nonnull final SchematicHandler schematicHandler) {
         this.plotAreaManager = plotAreaManager;
         this.schematicHandler = schematicHandler;
     }

Core/src/main/java/com/plotsquared/core/command/MainCommand.java

@@ -29,23 +29,17 @@ import com.google.inject.Injector;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
-import com.plotsquared.core.configuration.file.YamlConfiguration;
-import com.plotsquared.core.listener.PlotListener;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
-import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.EconHandler;
-import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import com.sk89q.worldedit.WorldEdit;
 
-import java.io.File;
 import java.util.Arrays;
 import java.util.LinkedList;
 import java.util.List;
@@ -152,12 +146,13 @@ public class MainCommand extends Command {
 
             // Referenced commands
             instance.toggle = injector.getInstance(Toggle.class);
-            instance.help = injector.getInstance(Help.class);
+            instance.help = new Help(instance);
         }
         return instance;
     }
 
     public static boolean onCommand(final PlotPlayer<?> player, String... args) {
+        final EconHandler econHandler = PlotSquared.platform().getEconHandler();
         if (args.length >= 1 && args[0].contains(":")) {
             String[] split2 = args[0].split(":");
             if (split2.length == 2) {
@@ -179,14 +174,14 @@ public class MainCommand extends Command {
                 public void run(final Command cmd, final Runnable success, final Runnable failure) {
                     if (cmd.hasConfirmation(player)) {
                         CmdConfirm.addPending(player, cmd.getUsage(), () -> {
-                            if (EconHandler.getEconHandler() != null) {
+                            if (econHandler != null) {
                                 PlotArea area = player.getApplicablePlotArea();
                                 if (area != null) {
                                     Expression<Double> priceEval =
                                         area.getPrices().get(cmd.getFullId());
                                     Double price = priceEval != null ? priceEval.evaluate(0d) : 0d;
                                     if (price != null
-                                        && EconHandler.getEconHandler().getMoney(player) < price) {
+                                        && econHandler.getMoney(player) < price) {
                                         if (failure != null) {
                                             failure.run();
                                         }
@@ -200,12 +195,12 @@ public class MainCommand extends Command {
                         });
                         return;
                     }
-                    if (EconHandler.getEconHandler() != null) {
+                    if (econHandler != null) {
                         PlotArea area = player.getApplicablePlotArea();
                         if (area != null) {
                             Expression<Double> priceEval = area.getPrices().get(cmd.getFullId());
                             Double price = priceEval != null ? priceEval.evaluate(0d) : 0d;
-                            if (price != 0d && EconHandler.getEconHandler().getMoney(player) < price) {
+                            if (price != 0d && econHandler.getMoney(player) < price) {
                                 if (failure != null) {
                                     failure.run();
                                 }
@@ -267,14 +262,14 @@ public class MainCommand extends Command {
                 if ("f".equals(args[0].substring(1))) {
                     confirm = new RunnableVal3<Command, Runnable, Runnable>() {
                         @Override public void run(Command cmd, Runnable success, Runnable failure) {
-                            if (EconHandler.getEconHandler() != null) {
+                            if (PlotSquared.platform().getEconHandler() != null) {
                                 PlotArea area = player.getApplicablePlotArea();
                                 if (area != null) {
                                     Expression<Double> priceEval =
                                         area.getPrices().get(cmd.getFullId());
                                     Double price = priceEval != null ? priceEval.evaluate(0d) : 0d;
                                     if (price != 0d
-                                        && EconHandler.getEconHandler().getMoney(player) < price) {
+                                        && PlotSquared.platform().getEconHandler().getMoney(player) < price) {
                                         if (failure != null) {
                                             failure.run();
                                         }

Core/src/main/java/com/plotsquared/core/command/Merge.java

@@ -42,8 +42,8 @@ import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.StringMan;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.UUID;
 
@@ -63,7 +63,7 @@ public class Merge extends SubCommand {
     private final EventDispatcher eventDispatcher;
     private final EconHandler econHandler;
 
-    @Inject public Merge(@NotNull final EventDispatcher eventDispatcher,
+    @Inject public Merge(@Nonnull final EventDispatcher eventDispatcher,
                          @Nullable final EconHandler econHandler) {
         this.eventDispatcher = eventDispatcher;
         this.econHandler = econHandler;

Core/src/main/java/com/plotsquared/core/command/Move.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.player.PlotPlayer;
@@ -35,7 +36,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.concurrent.CompletableFuture;
 
@@ -49,7 +50,7 @@ public class Move extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
 
-    public Move(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Move(@Nonnull final PlotAreaManager plotAreaManager) {
         this.plotAreaManager = plotAreaManager;
     }
 

Core/src/main/java/com/plotsquared/core/command/Music.java

@@ -39,7 +39,7 @@ import com.plotsquared.core.plot.flag.PlotFlag;
 import com.plotsquared.core.plot.flag.implementations.MusicFlag;
 import com.plotsquared.core.util.InventoryUtil;
 import com.sk89q.worldedit.world.item.ItemTypes;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nullable;
 
 import java.util.Arrays;
 import java.util.Collection;

Core/src/main/java/com/plotsquared/core/command/Owner.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
@@ -37,7 +38,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Set;
 import java.util.UUID;
@@ -56,7 +57,7 @@ public class Owner extends SetCommand {
 
     private final EventDispatcher eventDispatcher;
     
-    public Owner(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Owner(@Nonnull final EventDispatcher eventDispatcher) {
         this.eventDispatcher = eventDispatcher;
     }
     

Core/src/main/java/com/plotsquared/core/command/PluginCmd.java

@@ -40,7 +40,7 @@ import com.plotsquared.core.util.task.TaskManager;
 public class PluginCmd extends SubCommand {
 
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
-        TaskManager.IMP.taskAsync(() -> {
+        TaskManager.getImplementation().taskAsync(() -> {
             MainUtil.sendMessage(player, String.format(
                 "$2>> $1&l" + PlotSquared.platform().getPluginName() + " $2($1Version$2: $1%s$2)",
                 PlotSquared.get().getVersion()));

Core/src/main/java/com/plotsquared/core/command/Purge.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
@@ -37,7 +38,7 @@ import com.plotsquared.core.plot.PlotId;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.HashMap;
 import java.util.HashSet;
@@ -58,7 +59,8 @@ public class Purge extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final PlotListener plotListener;
 
-    public Purge(@NotNull final PlotAreaManager plotAreaManager, @NotNull final PlotListener plotListener) {
+    @Inject public Purge(@Nonnull final PlotAreaManager plotAreaManager,
+                         @Nonnull final PlotListener plotListener) {
         this.plotAreaManager = plotAreaManager;
         this.plotListener = plotListener;
     }

Core/src/main/java/com/plotsquared/core/command/Rate.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
@@ -38,11 +39,12 @@ import com.plotsquared.core.plot.PlotItemStack;
 import com.plotsquared.core.plot.Rating;
 import com.plotsquared.core.plot.flag.implementations.DoneFlag;
 import com.plotsquared.core.util.EventDispatcher;
+import com.plotsquared.core.util.InventoryUtil;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -59,9 +61,12 @@ import java.util.UUID;
 public class Rate extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
+    private final InventoryUtil inventoryUtil;
     
-    public Rate(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Rate(@Nonnull final EventDispatcher eventDispatcher,
+                        @Nonnull final InventoryUtil inventoryUtil) {
         this.eventDispatcher = eventDispatcher;
+        this.inventoryUtil = inventoryUtil;
     }
     
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
@@ -143,7 +148,7 @@ public class Rate extends SubCommand {
                     final MutableInt index = new MutableInt(0);
                     final MutableInt rating = new MutableInt(0);
                     String title = Settings.Ratings.CATEGORIES.get(0);
-                    PlotInventory inventory = new PlotInventory(player, 1, title) {
+                    PlotInventory inventory = new PlotInventory(inventoryUtil, player, 1, title) {
                         @Override public boolean onClick(int i) {
                             rating.add((i + 1) * Math.pow(10, index.getValue()));
                             index.increment();

Core/src/main/java/com/plotsquared/core/command/RegenAllRoads.java

@@ -34,7 +34,7 @@ import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotManager;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.MainUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "regenallroads",
     description = "Regenerate all roads in the map using the set road schematic",
@@ -48,8 +48,8 @@ public class RegenAllRoads extends SubCommand {
     private final PlotAreaManager plotAreaManager;
     private final HybridUtils hybridUtils;
 
-    @Inject public RegenAllRoads(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public RegenAllRoads(@Nonnull final PlotAreaManager plotAreaManager,
-                                 @NotNull final HybridUtils hybridUtils) {
+                                 @Nonnull final HybridUtils hybridUtils) {
         this.plotAreaManager = plotAreaManager;
         this.hybridUtils = hybridUtils;
     }

Core/src/main/java/com/plotsquared/core/command/Reload.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.inject.annotations.WorldConfig;
 import com.plotsquared.core.inject.annotations.WorldFile;
@@ -36,7 +37,7 @@ import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.PlotAreaType;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.MainUtil;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.io.IOException;
@@ -54,9 +55,9 @@ public class Reload extends SubCommand {
     private final YamlConfiguration worldConfiguration;
     private final File worldFile;
 
-    public Reload(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Reload(@Nonnull final PlotAreaManager plotAreaManager,
-                  @WorldConfig @NotNull final YamlConfiguration worldConfiguration,
+                          @WorldConfig @Nonnull final YamlConfiguration worldConfiguration,
-                  @WorldFile @NotNull final File  worldFile) {
+                          @WorldFile @Nonnull final File  worldFile) {
         this.plotAreaManager = plotAreaManager;
         this.worldConfiguration = worldConfiguration;
         this.worldFile = worldFile;

Core/src/main/java/com/plotsquared/core/command/Remove.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.database.DBFunc;
 import com.plotsquared.core.location.Location;
@@ -34,7 +35,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.TabCompletions;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -52,7 +53,7 @@ public class Remove extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
 
-    public Remove(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Remove(@Nonnull final EventDispatcher eventDispatcher) {
         super(Argument.PlayerName);
         this.eventDispatcher = eventDispatcher;
     }

Core/src/main/java/com/plotsquared/core/command/Save.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.player.PlotPlayer;
@@ -37,7 +38,7 @@ import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.jnbt.CompoundTag;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.net.URL;
 import java.util.List;
@@ -51,9 +52,12 @@ import java.util.UUID;
 public class Save extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
+    private final SchematicHandler schematicHandler;
 
-    public Save(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Save(@Nonnull final PlotAreaManager plotAreaManager,
+                        @Nonnull final SchematicHandler schematicHandler) {
         this.plotAreaManager = plotAreaManager;
+        this.schematicHandler = schematicHandler;
     }
 
     @Override public boolean onCommand(final PlotPlayer<?> player, final String[] args) {
@@ -79,7 +83,7 @@ public class Save extends SubCommand {
             return false;
         }
         plot.addRunning();
-        SchematicHandler.manager.getCompoundTag(plot, new RunnableVal<CompoundTag>() {
+        this.schematicHandler.getCompoundTag(plot, new RunnableVal<CompoundTag>() {
             @Override public void run(final CompoundTag value) {
                 TaskManager.runTaskAsync(() -> {
                     String time = (System.currentTimeMillis() / 1000) + "";
@@ -92,7 +96,7 @@ public class Save extends SubCommand {
                         .replaceAll("[^A-Za-z0-9]", "");
                     final String file = time + '_' + world1 + '_' + id.x + '_' + id.y + '_' + size;
                     UUID uuid = player.getUUID();
-                    SchematicHandler.manager.upload(value, uuid, file, new RunnableVal<URL>() {
+                    schematicHandler.upload(value, uuid, file, new RunnableVal<URL>() {
                         @Override public void run(URL url) {
                             plot.removeRunning();
                             if (url == null) {

Core/src/main/java/com/plotsquared/core/command/SchematicCmd.java

@@ -42,7 +42,7 @@ import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.net.URL;
 import java.util.ArrayList;
@@ -61,8 +61,8 @@ public class SchematicCmd extends SubCommand {
     private final SchematicHandler schematicHandler;
     private boolean running = false;
 
-    @Inject public SchematicCmd(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public SchematicCmd(@Nonnull final PlotAreaManager plotAreaManager,
-                                @NotNull final SchematicHandler schematicHandler) {
+                                @Nonnull final SchematicHandler schematicHandler) {
         this.plotAreaManager = plotAreaManager;
         this.schematicHandler = schematicHandler;
     }

Core/src/main/java/com/plotsquared/core/command/Set.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.backup.BackupManager;
 import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
@@ -44,6 +45,7 @@ import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.world.block.BlockCategory;
 import com.sk89q.worldedit.world.block.BlockType;
 import com.sk89q.worldedit.world.block.BlockTypes;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -67,8 +69,13 @@ public class Set extends SubCommand {
     public static final String[] aliases = new String[] {"b", "w", "wf", "a", "h"};
 
     private final SetCommand component;
+    private final WorldUtil worldUtil;
+    private final GlobalBlockQueue blockQueue;
 
-    public Set() {
+    @Inject public Set(@Nonnull final WorldUtil worldUtil,
+                       @Nonnull final GlobalBlockQueue blockQueue) {
+        this.worldUtil = worldUtil;
+        this.blockQueue = blockQueue;
         this.component = new SetCommand() {
 
             @Override public String getId() {
@@ -91,7 +98,7 @@ public class Set extends SubCommand {
                 final List<String> forbiddenTypes = new ArrayList<>(Settings.General.INVALID_BLOCKS);
 
                 if (Settings.Enabled_Components.CHUNK_PROCESSOR) {
-                    forbiddenTypes.addAll(WorldUtil.IMP.getTileEntityTypes().stream().map(
+                    forbiddenTypes.addAll(worldUtil.getTileEntityTypes().stream().map(
                         BlockType::getName).collect(Collectors.toList()));
                 }
 
@@ -154,7 +161,7 @@ public class Set extends SubCommand {
                                 current.setComponent(component, pattern);
                             }
                             MainUtil.sendMessage(player, Captions.GENERATING_COMPONENT);
-                            GlobalBlockQueue.IMP.addEmptyTask(plot::removeRunning);
+                            blockQueue.addEmptyTask(plot::removeRunning);
                         });
                         return true;
                     }

Core/src/main/java/com/plotsquared/core/command/Setup.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.generator.GeneratorWrapper;
@@ -33,6 +34,7 @@ import com.plotsquared.core.setup.SetupProcess;
 import com.plotsquared.core.setup.SetupStep;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.SetupUtils;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -48,6 +50,12 @@ import java.util.Map.Entry;
     category = CommandCategory.ADMINISTRATION)
 public class Setup extends SubCommand {
 
+    private final SetupUtils setupUtils;
+
+    @Inject public Setup(@Nonnull final SetupUtils setupUtils) {
+        this.setupUtils = setupUtils;
+    }
+
     public void displayGenerators(PlotPlayer<?> player) {
         StringBuilder message = new StringBuilder();
         message.append("&6What generator do you want?");
@@ -72,7 +80,7 @@ public class Setup extends SubCommand {
             }
             process = new SetupProcess();
             player.setMeta("setup", process);
-            SetupUtils.manager.updateGenerators();
+            this.setupUtils.updateGenerators();
             SetupStep step = process.getCurrentStep();
             step.announce(player);
             displayGenerators(player);

Core/src/main/java/com/plotsquared/core/command/Template.java

@@ -48,7 +48,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.SetupUtils;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -73,12 +73,12 @@ public class Template extends SubCommand {
     private final GlobalBlockQueue globalBlockQueue;
     private final WorldUtil worldUtil;
 
-    @Inject public Template(@NotNull final PlotAreaManager plotAreaManager,
+    @Inject public Template(@Nonnull final PlotAreaManager plotAreaManager,
-                            @WorldConfig @NotNull final YamlConfiguration worldConfiguration,
+                            @WorldConfig @Nonnull final YamlConfiguration worldConfiguration,
-                            @WorldFile @NotNull final File worldFile,
+                            @WorldFile @Nonnull final File worldFile,
-                            @NotNull final SetupUtils setupUtils,
+                            @Nonnull final SetupUtils setupUtils,
-                            @NotNull final GlobalBlockQueue globalBlockQueue,
+                            @Nonnull final GlobalBlockQueue globalBlockQueue,
-                            @NotNull final WorldUtil worldUtil) {
+                            @Nonnull final WorldUtil worldUtil) {
         this.plotAreaManager = plotAreaManager;
         this.worldConfiguration = worldConfiguration;
         this.worldFile = worldFile;

Core/src/main/java/com/plotsquared/core/command/Trim.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.location.Location;
@@ -44,7 +45,7 @@ import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.HashSet;
 import java.util.Iterator;
@@ -60,9 +61,18 @@ import java.util.Set;
 public class Trim extends SubCommand {
 
     private final PlotAreaManager plotAreaManager;
+    private final WorldUtil worldUtil;
+    private final GlobalBlockQueue blockQueue;
+    private final RegionManager regionManager;
 
-    public Trim(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Trim(@Nonnull final PlotAreaManager plotAreaManager,
+                        @Nonnull final WorldUtil worldUtil,
+                        @Nonnull final GlobalBlockQueue blockQueue,
+                        @Nonnull final RegionManager regionManager) {
         this.plotAreaManager = plotAreaManager;
+        this.worldUtil = worldUtil;
+        this.blockQueue = blockQueue;
+        this.regionManager = regionManager;
     }
 
     private static volatile boolean TASK = false;
@@ -84,7 +94,7 @@ public class Trim extends SubCommand {
         if (ExpireManager.IMP != null) {
             plots.removeAll(ExpireManager.IMP.getPendingExpired());
         }
-        result.value1 = new HashSet<>(RegionManager.manager.getChunkChunks(world));
+        result.value1 = new HashSet<>(PlotSquared.platform().getRegionManager().getChunkChunks(world));
         result.value2 = new HashSet<>();
         MainUtil.sendMessage(null, " - MCA #: " + result.value1.size());
         MainUtil.sendMessage(null, " - CHUNKS: " + (result.value1.size() * 1024) + " (max)");
@@ -116,7 +126,7 @@ public class Trim extends SubCommand {
             return false;
         }
         final String world = args[0];
-        if (!WorldUtil.IMP.isWorld(world) || !this.plotAreaManager.hasPlotArea(world)) {
+        if (!this.worldUtil.isWorld(world) || !this.plotAreaManager.hasPlotArea(world)) {
             MainUtil.sendMessage(player, Captions.NOT_VALID_WORLD);
             return false;
         }
@@ -174,8 +184,7 @@ public class Trim extends SubCommand {
                                     }
                                 }
                             }
-                            final LocalBlockQueue queue =
+                            final LocalBlockQueue queue = blockQueue.getNewQueue(world, false);
-                                GlobalBlockQueue.IMP.getNewQueue(world, false);
                             TaskManager.objectTask(chunks, new RunnableVal<BlockVector2>() {
                                 @Override public void run(BlockVector2 value) {
                                     queue.regenChunk(value.getX(), value.getZ());
@@ -189,7 +198,7 @@ public class Trim extends SubCommand {
                         player.sendMessage("Trim done!");
                     };
                 }
-                RegionManager.manager.deleteRegionFiles(world, viable, regenTask);
+                regionManager.deleteRegionFiles(world, viable, regenTask);
 
             }
         });

Core/src/main/java/com/plotsquared/core/command/Trust.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.database.DBFunc;
 import com.plotsquared.core.player.PlotPlayer;
@@ -35,7 +36,7 @@ import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.TabCompletions;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -54,7 +55,7 @@ public class Trust extends Command {
 
     private final EventDispatcher eventDispatcher;
     
-    public Trust(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Trust(@Nonnull final EventDispatcher eventDispatcher) {
         super(MainCommand.getInstance(), true);
         this.eventDispatcher = eventDispatcher;
     }

Core/src/main/java/com/plotsquared/core/command/Unlink.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.events.PlotUnlinkEvent;
 import com.plotsquared.core.events.Result;
@@ -36,7 +37,7 @@ import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.task.TaskManager;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 @CommandDeclaration(command = "unlink",
     aliases = {"u", "unmerge"},
@@ -49,7 +50,7 @@ public class Unlink extends SubCommand {
 
     private final EventDispatcher eventDispatcher;
     
-    public Unlink(@NotNull final EventDispatcher eventDispatcher) {
+    @Inject public Unlink(@Nonnull final EventDispatcher eventDispatcher) {
         this.eventDispatcher = eventDispatcher;
     }
     

Core/src/main/java/com/plotsquared/core/command/Visit.java

@@ -25,6 +25,7 @@
  */
 package com.plotsquared.core.command;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.events.TeleportCause;
@@ -41,7 +42,7 @@ import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.query.SortingStrategy;
 import com.plotsquared.core.util.task.RunnableVal2;
 import com.plotsquared.core.util.task.RunnableVal3;
-import org.jetbrains.annotations.NotNull;
+import javax.annotation.Nonnull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -62,17 +63,17 @@ public class Visit extends Command {
 
     private final PlotAreaManager plotAreaManager;
     
-    public Visit(@NotNull final PlotAreaManager plotAreaManager) {
+    @Inject public Visit(@Nonnull final PlotAreaManager plotAreaManager) {
         super(MainCommand.getInstance(), true);
         this.plotAreaManager = plotAreaManager;
     }
 
-    private void visit(@NotNull final PlotPlayer player, @NotNull final PlotQuery query, final PlotArea sortByArea,
+    private void visit(@Nonnull final PlotPlayer player, @Nonnull final PlotQuery query, final PlotArea sortByArea,
         final RunnableVal3<Command, Runnable, Runnable> confirm, final RunnableVal2<Command, CommandResult> whenDone) {
         this.visit(player, query, sortByArea, confirm, whenDone, 1);
     }
 
-    private void visit(@NotNull final PlotPlayer player, @NotNull final PlotQuery query, final PlotArea sortByArea,
+    private void visit(@Nonnull final PlotPlayer player, @Nonnull final PlotQuery query, final PlotArea sortByArea,
         final RunnableVal3<Command, Runnable, Runnable> confirm, final RunnableVal2<Command, CommandResult> whenDone, int page) {
         // We get the query once,
         // then we get it another time further on