Merge branch 'v6' into feature/v6/platform

# Conflicts:
#	Bukkit/build.gradle
#	Bukkit/src/main/java/com/plotsquared/bukkit/BukkitPlatform.java
#	Bukkit/src/main/java/com/plotsquared/bukkit/listener/ChunkListener.java
#	Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitRegionManager.java
#	Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitUtil.java
#	Bukkit/src/main/java/com/plotsquared/bukkit/uuid/SquirrelIdUUIDService.java
#	Core/build.gradle
#	Core/src/main/java/com/plotsquared/core/PlotSquared.java
#	Core/src/main/java/com/plotsquared/core/command/Claim.java
#	Core/src/main/java/com/plotsquared/core/command/Debug.java
#	Core/src/main/java/com/plotsquared/core/command/DebugExec.java
#	Core/src/main/java/com/plotsquared/core/command/Purge.java
#	Core/src/main/java/com/plotsquared/core/command/Trim.java
#	Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java
#	Core/src/main/java/com/plotsquared/core/database/SQLManager.java
#	Core/src/main/java/com/plotsquared/core/generator/HybridPlotWorld.java
#	Core/src/main/java/com/plotsquared/core/generator/HybridUtils.java
#	Core/src/main/java/com/plotsquared/core/generator/SquarePlotManager.java
#	Core/src/main/java/com/plotsquared/core/generator/SquarePlotWorld.java
#	Core/src/main/java/com/plotsquared/core/listener/ProcessedWEExtent.java
#	Core/src/main/java/com/plotsquared/core/player/ConsolePlayer.java
#	Core/src/main/java/com/plotsquared/core/player/PlotPlayer.java
#	Core/src/main/java/com/plotsquared/core/plot/Plot.java
#	Core/src/main/java/com/plotsquared/core/plot/PlotArea.java
#	Core/src/main/java/com/plotsquared/core/plot/PlotInventory.java
#	Core/src/main/java/com/plotsquared/core/plot/expiration/ExpireManager.java
#	Core/src/main/java/com/plotsquared/core/plot/expiration/PlotAnalysis.java
#	Core/src/main/java/com/plotsquared/core/plot/flag/FlagContainer.java
#	Core/src/main/java/com/plotsquared/core/plot/flag/types/BlockTypeWrapper.java
#	Core/src/main/java/com/plotsquared/core/plot/message/PlotMessage.java
#	Core/src/main/java/com/plotsquared/core/util/LegacyConverter.java
#	Core/src/main/java/com/plotsquared/core/util/MainUtil.java
#	Core/src/main/java/com/plotsquared/core/util/RegionManager.java
#	Core/src/main/java/com/plotsquared/core/util/SchematicHandler.java
#	Core/src/main/java/com/plotsquared/core/uuid/UUIDPipeline.java

Bukkit/build.gradle

@@ -41,6 +41,8 @@ dependencies {
     implementation("net.alpenblock:BungeePerms:4.0-dev-106")
     compile("se.hyperver.hyperverse:Core:0.6.0-SNAPSHOT"){ transitive = false }
     compile('com.sk89q:squirrelid:1.0.0-SNAPSHOT'){ transitive = false }
+    // logging
+    implementation('org.apache.logging.log4j:log4j-slf4j-impl:2.8.1')
 }
 
 sourceCompatibility = 1.8
@@ -102,13 +104,19 @@ shadowJar {
         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"))
+        include(dependency('org.apache.logging.log4j:log4j-slf4j-impl'))
+        include(dependency('org.slf4j:slf4j-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('org.apache.logging.slf4j', 'com.plotsquared.logging.apache')
+    relocate('org.slf4j', 'com.plotsquared.logging.slf4j')
     relocate('com.google.inject', 'com.plotsquared.google')
+
     archiveFileName = "${project.name}-${parent.version}.jar"
     destinationDirectory = file "../target"
 }

Bukkit/pom.xml

@@ -182,6 +182,12 @@
       <version>4.0-dev-106</version>
       <scope>runtime</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-slf4j-impl</artifactId>
+      <version>2.8.1</version>
+      <scope>runtime</scope>
+    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>

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

@@ -59,9 +59,8 @@ import com.plotsquared.bukkit.uuid.SquirrelIdUUIDService;
 import com.plotsquared.core.PlotPlatform;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.backup.BackupManager;
-import com.plotsquared.core.command.WE_Anywhere;
+import com.plotsquared.core.backup.NullBackupManager;
-import com.plotsquared.core.components.ComponentPresetManager;
+import com.plotsquared.core.backup.SimpleBackupManager;
-import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ChatFormatter;
 import com.plotsquared.core.configuration.ConfigurationNode;
@@ -96,6 +95,7 @@ import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.setup.PlotAreaBuilder;
 import com.plotsquared.core.setup.SettingsNodesWrapper;
 import com.plotsquared.core.util.ChatManager;
+import com.plotsquared.core.util.ChunkManager;
 import com.plotsquared.core.util.ConsoleColors;
 import com.plotsquared.core.util.EconHandler;
 import com.plotsquared.core.util.EventDispatcher;
@@ -105,7 +105,6 @@ import com.plotsquared.core.util.PlatformWorldManager;
 import com.plotsquared.core.util.PremiumVerification;
 import com.plotsquared.core.util.ReflectionUtils;
 import com.plotsquared.core.util.SetupUtils;
-import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.task.TaskManager;
 import com.plotsquared.core.uuid.CacheUUIDService;
@@ -134,6 +133,8 @@ import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.java.JavaPlugin;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.lang.reflect.Method;
@@ -160,6 +161,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 
 @SuppressWarnings("unused") public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPlatform<Player> {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + BukkitMain.class.getSimpleName());
     private static final int BSTATS_ID = 1404;
 
     static {
@@ -203,9 +205,6 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 }
             } catch (NumberFormatException e) {
                 e.printStackTrace();
-                PlotSquared.debug(StringMan.getString(Bukkit.getBukkitVersion()));
-                PlotSquared.debug(
-                    StringMan.getString(Bukkit.getBukkitVersion().split("-")[0].split("\\.")));
                 return new int[] {1, 13, 0};
             }
         }
@@ -246,14 +245,12 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         }
 
         if (PremiumVerification.isPremium()) {
-            PlotSquared.log(
+            logger.info("[P2] PlotSquared version licensed to Spigot user {}", getUserID());
-                Captions.PREFIX + "&6PlotSquared version licensed to Spigot user " + getUserID());
+            logger.info("[P2] https://www.spigotmc.org/resources/{}", getResourceID());
-            PlotSquared
+            logger.info("[P2] Download ID: {}", getDownloadID());
-                .log(Captions.PREFIX + "&6https://www.spigotmc.org/resources/" + getResourceID());
+            logger.info("[P2] Thanks for supporting us :)");
-            PlotSquared.log(Captions.PREFIX + "&6Download ID: " + getDownloadID());
-            PlotSquared.log(Captions.PREFIX + "&6Thanks for supporting us :)");
         } else {
-            PlotSquared.log(Captions.PREFIX + "&6Couldn't verify purchase :(");
+            logger.info("[P2] Couldn't verify purchase :(");
         }
 
         // Database
@@ -398,7 +395,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
             final OfflineModeUUIDService offlineModeUUIDService = new OfflineModeUUIDService();
             this.impromptuPipeline.registerService(offlineModeUUIDService);
             this.backgroundPipeline.registerService(offlineModeUUIDService);
-            PlotSquared.log(Captions.PREFIX + "(UUID) Using the offline mode UUID service");
+            logger.info("[P2] (UUID) Using the offline mode UUID service");
         }
 
         final OfflinePlayerUUIDService offlinePlayerUUIDService = new OfflinePlayerUUIDService();
@@ -418,8 +415,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         final LuckPermsUUIDService luckPermsUUIDService;
         if (Bukkit.getPluginManager().getPlugin("LuckPerms") != null) {
             luckPermsUUIDService = new LuckPermsUUIDService();
-            PlotSquared
+            logger.info("[P2] (UUID) Using LuckPerms as a complementary UUID service");
-                .log(Captions.PREFIX + "(UUID) Using LuckPerms as a complementary UUID service");
         } else {
             luckPermsUUIDService = null;
         }
@@ -427,8 +423,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         final BungeePermsUUIDService bungeePermsUUIDService;
         if (Bukkit.getPluginManager().getPlugin("BungeePerms") != null) {
             bungeePermsUUIDService = new BungeePermsUUIDService();
-            PlotSquared
+            logger.info("[P2] (UUID) Using BungeePerms as a complementary UUID service");
-                .log(Captions.PREFIX + "(UUID) Using BungeePerms as a complementary UUID service");
         } else {
             bungeePermsUUIDService = null;
         }
@@ -436,8 +431,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
         final EssentialsUUIDService essentialsUUIDService;
         if (Bukkit.getPluginManager().getPlugin("Essentials") != null) {
             essentialsUUIDService = new EssentialsUUIDService();
-            PlotSquared
+            logger.info("[P2] (UUID) Using Essentials as a complementary UUID service");
-                .log(Captions.PREFIX + "(UUID) Using Essentials as a complementary UUID service");
         } else {
             essentialsUUIDService = null;
         }
@@ -448,8 +442,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 final PaperUUIDService paperUUIDService = new PaperUUIDService();
                 this.impromptuPipeline.registerService(paperUUIDService);
                 this.backgroundPipeline.registerService(paperUUIDService);
-                PlotSquared
+                logger.info("[P2] (UUID) Using Paper as a complementary UUID service");
-                    .log(Captions.PREFIX + "(UUID) Using Paper as a complementary UUID service");
             }
 
             this.impromptuPipeline.registerService(sqLiteUUIDService);
@@ -505,10 +498,9 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
             if (Settings.Enabled_Components.EXTERNAL_PLACEHOLDERS) {
                 ChatFormatter.formatters.add(getInjector().getInstance(PlaceholderFormatter.class));
             }
-            PlotSquared.log(Captions.PREFIX + "&6PlotSquared hooked into PlaceholderAPI");
+            logger.info("[P2] PlotSquared hooked into PlaceholderAPI");
         } else {
-            PlotSquared
+            logger.info("[P2] PlaceholderAPI is not in use. Hook deactivated");
-                .debug(Captions.PREFIX + "&6PlaceholderAPI is not in use. Hook deactivated.");
         }
 
         this.startMetrics();
@@ -521,10 +513,6 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
             }
         }
 
-        PlotSquared.log(
-            Captions.PREFIX.getTranslated() + "Using platform world manager: " + this.worldManager
-                .getName());
-
         // Clean up potential memory leak
         Bukkit.getScheduler().runTaskTimer(this, () -> {
             try {
@@ -537,10 +525,6 @@ 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() {
@@ -588,7 +572,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                         final Chunk[] chunks = world.getLoadedChunks();
                         if (chunks.length == 0) {
                             if (!Bukkit.unloadWorld(world, true)) {
-                                PlotSquared.debug("Failed to unload " + world.getName());
+                                logger.warn("[P2] Failed to unload {}", world.getName());
                             }
                             return;
                         } else {
@@ -638,8 +622,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 }
             }
         });
-        PlotSquared.log(Captions.PREFIX.getTranslated() + "(UUID) " + uuidQueue.size()
+
-            + " UUIDs will be cached.");
+        logger.info("[P2] (UUID) {} UUIDs will be cached", uuidQueue.size());
 
         Executors.newSingleThreadScheduledExecutor().schedule(() -> {
             // Begin by reading all the SQLite cache at once
@@ -647,9 +631,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
             // Now fetch names for all known UUIDs
             final int totalSize = uuidQueue.size();
             int read = 0;
-            PlotSquared.log(Captions.PREFIX.getTranslated()
+            logger.info("[P2] (UUID) PlotSquared will fetch UUIDs in groups of {}", Settings.UUID.BACKGROUND_LIMIT);
-                + "(UUID) PlotSquared will fetch UUIDs in groups of "
-                + Settings.UUID.BACKGROUND_LIMIT);
             final List<UUID> uuidList = new ArrayList<>(Settings.UUID.BACKGROUND_LIMIT);
 
             // Used to indicate that the second retrieval has been attempted
@@ -657,7 +639,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 
             while (!uuidQueue.isEmpty() || !uuidList.isEmpty()) {
                 if (!uuidList.isEmpty() && secondRun) {
-                    PlotSquared.log("Giving up on last batch. Fetching new batch instead.");
+                    logger.warn("[P2] (UUID) Giving up on last batch. Fetching new batch instead");
                     uuidList.clear();
                 }
                 if (uuidList.isEmpty()) {
@@ -681,15 +663,14 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                     uuidList.clear();
                     // Print progress
                     final double percentage = ((double) read / (double) totalSize) * 100.0D;
-                    PlotSquared.log(Captions.PREFIX.getTranslated() + String
+                    if (Settings.DEBUG) {
-                        .format("(UUID) PlotSquared has cached %.1f%% of UUIDs", percentage));
+                        logger.info("[P2] (UUID) PlotSquared has cached {} of UUIDs", String.format("%.1f%%", percentage));
+                    }
                 } catch (final InterruptedException | ExecutionException e) {
-                    PlotSquared.log("Failed to retrieve that batch. Will try again.");
+                    logger.error("[P2] (UUID) Failed to retrieve last batch. Will try again", e);
-                    e.printStackTrace();
                 }
             }
-            PlotSquared
+            logger.info("[P2] (UUID) PlotSquared has cached all UUIDs");
-                .log(Captions.PREFIX.getTranslated() + "(UUID) PlotSquared has cached all UUIDs");
         }, 10, TimeUnit.SECONDS);
     }
 
@@ -733,7 +714,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
     }
 
     @SuppressWarnings("deprecation") private void runEntityTask() {
-        PlotSquared.log(Captions.PREFIX + "KillAllEntities started.");
+        logger.info("[P2] KillAllEntities started");
         TaskManager.runTaskRepeat(() -> this.plotAreaManager.forEachPlotArea(plotArea -> {
             final World world = Bukkit.getWorld(plotArea.getWorldName());
             try {
@@ -1074,8 +1055,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
                 if (!this.plotAreaManager.hasPlotArea(worldName)) {
                     SetGenCB.setGenerator(BukkitUtil.getWorld(worldName));
                 }
-            } catch (Exception e) {
+            } catch (final Exception e) {
-                PlotSquared.log("Failed to reload world: " + world + " | " + e.getMessage());
+                logger.error("[P2] Failed to reload world: {} | {}", world, e.getMessage());
                 Bukkit.getServer().unloadWorld(world, false);
                 return;
             }

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

@@ -25,7 +25,7 @@
  */
 package com.plotsquared.bukkit.entity;
 
-import com.plotsquared.core.PlotSquared;
+import com.plotsquared.core.configuration.Settings;
 import org.bukkit.Art;
 import org.bukkit.DyeColor;
 import org.bukkit.Location;
@@ -55,11 +55,15 @@ import org.bukkit.inventory.InventoryHolder;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.util.EulerAngle;
 import org.bukkit.util.Vector;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.List;
 
 public final class ReplicatingEntityWrapper extends EntityWrapper {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ReplicatingEntityWrapper.class.getSimpleName());
+
     private final short depth;
     private final int hash;
     private final EntityBaseStats base = new EntityBaseStats();
@@ -331,10 +335,7 @@ public final class ReplicatingEntityWrapper extends EntityWrapper {
                     this.dataByte = (byte) 0;
                 }
                 storeLiving((LivingEntity) entity);
-                return;
             // END LIVING //
-            default:
-                PlotSquared.debug("&cCOULD NOT IDENTIFY ENTITY: " + entity.getType());
         }
     }
 
@@ -390,7 +391,7 @@ public final class ReplicatingEntityWrapper extends EntityWrapper {
         try {
             entity.getInventory().setContents(this.inventory);
         } catch (IllegalArgumentException e) {
-            PlotSquared.debug("&c[WARN] Failed to restore inventory.\n Reason: " + e.getMessage());
+            logger.error("[P2] Failed to restore inventory", e);
         }
     }
 
@@ -736,7 +737,9 @@ public final class ReplicatingEntityWrapper extends EntityWrapper {
                 restoreLiving((LivingEntity) entity);
                 return entity;
             default:
-                PlotSquared.debug("&cCOULD NOT IDENTIFY ENTITY: " + entity.getType());
+                if (Settings.DEBUG) {
+                    logger.info("[P2] Could not identify entity: {}", entity.getType());
+                }
                 return entity;
             // END LIVING
         }

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

@@ -54,6 +54,8 @@ import org.bukkit.event.entity.ItemSpawnEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.reflect.Method;
 import java.util.HashSet;
@@ -63,6 +65,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 @SuppressWarnings("unused")
 public class ChunkListener implements Listener {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ChunkListener.class.getSimpleName());
+
     private final PlotAreaManager plotAreaManager;
 
     private RefMethod methodGetHandleChunk;
@@ -79,9 +83,6 @@ public class ChunkListener implements Listener {
                 this.mustSave = classChunk.getField("mustSave");
                 this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");
             } catch (Throwable ignored) {
-                PlotSquared.debug(PlotSquared.platform().getPluginName()
-                    + "/Server not compatible for chunk processor trim/gc");
-
                 Settings.Chunk_Processor.AUTO_TRIM = false;
             }
         }
@@ -257,7 +258,6 @@ public class ChunkListener implements Listener {
             if (!chunk.isLoaded()) {
                 Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
                 TaskManager.tasks.remove(currentIndex);
-                PlotSquared.debug("Successfully processed and unloaded chunk!");
                 chunk.unload(true);
                 return;
             }
@@ -265,7 +265,6 @@ public class ChunkListener implements Listener {
             if (tiles.length == 0) {
                 Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
                 TaskManager.tasks.remove(currentIndex);
-                PlotSquared.debug("Successfully processed and unloaded chunk!");
                 chunk.unload(true);
                 return;
             }
@@ -275,7 +274,6 @@ public class ChunkListener implements Listener {
                 if (i >= tiles.length - Settings.Chunk_Processor.MAX_TILES) {
                     Bukkit.getScheduler().cancelTask(TaskManager.tasks.get(currentIndex));
                     TaskManager.tasks.remove(currentIndex);
-                    PlotSquared.debug("Successfully processed and unloaded chunk!");
                     chunk.unload(true);
                     return;
                 }
@@ -302,16 +300,9 @@ public class ChunkListener implements Listener {
                     toRemove--;
                 }
             }
-
-            PlotSquared.debug(
-                "PlotSquared detected unsafe chunk and processed: " + (chunk.getX() << 4) + "," + (
-                    chunk.getX() << 4));
         }
         if (tiles.length > Settings.Chunk_Processor.MAX_TILES) {
             if (unload) {
-                PlotSquared.debug(
-                    "PlotSquared detected unsafe chunk: " + (chunk.getX() << 4) + "," + (
-                        chunk.getX() << 4));
                 cleanChunk(chunk);
                 return true;
             }

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

@@ -1020,7 +1020,8 @@ import java.util.regex.Pattern;
                 player.sendMessage(spyMessage);
             }
         }
-        PlotSquared.debug(full);
+        // TODO: Re-implement
+        // PlotSquared.debug(full);
     }
 
     @EventHandler(priority = EventPriority.LOWEST) public void blockDestroy(BlockBreakEvent event) {
@@ -2497,7 +2498,6 @@ import java.util.regex.Pattern;
         }
         Player p = event.getPlayer();
         if (p == null) {
-            PlotSquared.debug("PlotSquared does not support HangingPlaceEvent for non-players.");
             event.setCancelled(true);
             return;
         }

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

@@ -27,7 +27,6 @@ package com.plotsquared.bukkit.queue;
 
 import com.plotsquared.bukkit.schematic.StateWrapper;
 import com.plotsquared.bukkit.util.BukkitBlockUtil;
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.queue.BasicLocalBlockQueue;
 import com.plotsquared.core.util.BlockUtil;
 import com.plotsquared.core.util.MainUtil;
@@ -84,8 +83,6 @@ public class BukkitLocalQueue extends BasicLocalBlockQueue {
         World worldObj = Bukkit.getWorld(getWorld());
         if (worldObj != null) {
             worldObj.refreshChunk(x, z);
-        } else {
-            PlotSquared.debug("Error Refreshing Chunk");
         }
     }
 
@@ -108,8 +105,6 @@ public class BukkitLocalQueue extends BasicLocalBlockQueue {
                     world.regenerate(region, editSession);
                 }
             }
-        } else {
-            PlotSquared.debug("Error Regenerating Chunk");
         }
     }
 

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

@@ -29,6 +29,7 @@ import com.google.inject.Inject;
 import com.google.inject.Singleton;
 import com.plotsquared.bukkit.BukkitPlatform;
 import com.plotsquared.core.PlotSquared;
+import com.plotsquared.bukkit.BukkitMain;
 import com.plotsquared.core.generator.AugmentedUtils;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.location.PlotLoc;
@@ -58,6 +59,8 @@ import org.bukkit.World;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -78,6 +81,8 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
 
 @Singleton public class BukkitRegionManager extends RegionManager {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + BukkitRegionManager.class.getSimpleName());
+
     @Inject public BukkitRegionManager(@Nonnull final ChunkManager chunkManager) {
         super(chunkManager);
     }
@@ -97,8 +102,6 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
         } else {
             final Semaphore semaphore = new Semaphore(1);
             try {
-                PlotSquared.debug("Attempting to make an asynchronous call to getLoadedChunks."
-                    + " Will halt the calling thread until completed.");
                 semaphore.acquire();
                 Bukkit.getScheduler().runTask(BukkitPlatform.getPlugin(BukkitPlatform.class), () -> {
                     for (Chunk chunk : Objects.requireNonNull(Bukkit.getWorld(world))

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

@@ -98,6 +98,8 @@ import org.bukkit.entity.Vehicle;
 import org.bukkit.entity.WaterMob;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -113,6 +115,8 @@ import java.util.stream.Stream;
 @SuppressWarnings({"unused", "WeakerAccess"})
 @Singleton public class BukkitUtil extends WorldUtil {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + BukkitUtil.class.getSimpleName());
+
     private static String lastString = null;
     private static World lastWorld = null;
 
@@ -472,7 +476,6 @@ import java.util.stream.Stream;
                     block.setType(Material.valueOf("OAK_WALL_SIGN"), false);
                 }
                 if (!(block.getBlockData() instanceof WallSign)) {
-                    PlotSquared.debug(block.getBlockData().getAsString());
                     throw new RuntimeException("Something went wrong generating a sign");
                 }
                 final Directional sign = (Directional) block.getBlockData();
@@ -513,7 +516,7 @@ import java.util.stream.Stream;
         @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.");
+            logger.warn("[P2] An error occured while setting the biome because the world was null", new RuntimeException());
             return;
         }
         final Biome biome = BukkitAdapter.adapt(biomeType);
@@ -627,7 +630,7 @@ import java.util.stream.Stream;
             }
             break;
             default: {
-                PlotSquared.log(Captions.PREFIX + "Unknown entity category requested: " + category);
+                logger.error("[P2] Unknown entity category requested: {}", category);
             }
             break;
         }

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

@@ -27,7 +27,6 @@ package com.plotsquared.bukkit.util;
 
 import com.plotsquared.bukkit.entity.EntityWrapper;
 import com.plotsquared.bukkit.entity.ReplicatingEntityWrapper;
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.location.PlotLoc;
 import com.sk89q.worldedit.bukkit.BukkitWorld;
@@ -38,6 +37,8 @@ import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.HashMap;
 import java.util.HashSet;
@@ -46,6 +47,8 @@ import java.util.Set;
 
 public class ContentMap {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ContentMap.class.getSimpleName());
+
     final Set<EntityWrapper> entities;
     final Map<PlotLoc, BaseBlock[]> allBlocks;
 
@@ -123,8 +126,7 @@ public class ContentMap {
             try {
                 entity.spawn(world, xOffset, zOffset);
             } catch (Exception e) {
-                PlotSquared.debug("Failed to restore entity (e): " + e.toString());
+                logger.error("[P2] Failed to restore entity", e);
-                e.printStackTrace();
             }
         }
         this.entities.clear();

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

@@ -31,12 +31,13 @@ import com.google.gson.stream.JsonReader;
 import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.PlotVersion;
-import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
 import org.bukkit.Bukkit;
 import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.bukkit.scheduler.BukkitTask;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.net.ssl.HttpsURLConnection;
 import java.io.IOException;
@@ -45,6 +46,8 @@ import java.net.URL;
 
 public class UpdateUtility implements Listener {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + UpdateUtility.class.getSimpleName());
+
     public static PlotVersion internalVersion;
     public static String spigotVersion;
     public static boolean hasUpdate;
@@ -69,26 +72,22 @@ public class UpdateUtility implements Listener {
                     .getAsJsonObject();
                 spigotVersion = result.get("current_version").getAsString();
             } catch (IOException e) {
-                PlotSquared.log(Captions.PREFIX + "&cUnable to check for updates because: " + e);
+                logger.error("[P2] Unable to check for updates. Error: {}", e.getMessage());
                 return;
             }
 
             if (internalVersion.isLaterVersion(spigotVersion)) {
-                PlotSquared
+                logger.info("[P2] There appears to be a PlotSquared update available!");
-                    .log(Captions.PREFIX + "&6There appears to be a PlotSquared update available!");
+                logger.info("[P2] You are running version {}, the latest version is {}",
-                PlotSquared.log(
+                    internalVersion.versionString(), spigotVersion);
-                    Captions.PREFIX + "&6You are running version " + internalVersion.versionString()
+                logger.info("[P2] https://www.spigotmc.org/resources/77506/updates");
-                        + ", &6latest version is " + spigotVersion);
-                PlotSquared
-                    .log(Captions.PREFIX + "&6https://www.spigotmc.org/resources/77506/updates");
                 hasUpdate = true;
                 if (Settings.UpdateChecker.NOTIFY_ONCE) {
                     cancelTask();
                 }
             } else if (notify) {
                 notify = false;
-                PlotSquared.log(Captions.PREFIX
+                logger.info("[P2] Congratulations! You are running the latest PlotSquared version");
-                    + "Congratulations! You are running the latest PlotSquared version.");
             }
         }, 0L, Settings.UpdateChecker.POLL_RATE * 60 * 20);
     }

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

@@ -26,14 +26,15 @@
 package com.plotsquared.bukkit.uuid;
 
 import com.google.common.util.concurrent.RateLimiter;
-import com.plotsquared.core.PlotSquared;
+import com.plotsquared.core.configuration.Settings;
-import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.plotsquared.core.uuid.UUIDService;
 import com.sk89q.squirrelid.Profile;
 import com.sk89q.squirrelid.resolver.HttpRepositoryService;
 import com.sk89q.squirrelid.resolver.ProfileService;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -47,6 +48,8 @@ import java.util.UUID;
 @SuppressWarnings("UnstableApiUsage")
 public class SquirrelIdUUIDService implements UUIDService {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SquirrelIdUUIDService.class.getSimpleName());
+
     private final ProfileService profileService;
     private final RateLimiter rateLimiter;
 
@@ -78,7 +81,9 @@ public class SquirrelIdUUIDService implements UUIDService {
                 // go through them one by one
                 //
                 if (uuids.size() >= 2) {
-                    PlotSquared.debug(Captions.PREFIX + "(UUID) Found invalid UUID in batch. Will try each UUID individually.");
+                    if (Settings.DEBUG) {
+                        logger.info("[P2] (UUID) Found invalid UUID in batch. Will try each UUID individually.");
+                    }
                     for (final UUID uuid : uuids) {
                         final List<UUIDMapping> result = this.getNames(Collections.singletonList(uuid));
                         if (result.isEmpty()) {
@@ -86,8 +91,8 @@ public class SquirrelIdUUIDService implements UUIDService {
                         }
                         results.add(result.get(0));
                     }
-                } else if (uuids.size() == 1) {
+                } else if (uuids.size() == 1 && Settings.DEBUG) {
-                    PlotSquared.debug(Captions.PREFIX + "(UUID) Found invalid UUID: " + uuids.get(0));
+                    logger.info("[P2] (UUID) Found invalid UUID: {}", uuids.get(0));
                 }
             }
         } catch (IOException | InterruptedException e) {

Core/build.gradle

@@ -20,6 +20,8 @@ dependencies {
     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'
+    // logging
+    implementation("org.apache.logging.log4j:log4j-slf4j-impl:2.8.1")
 }
 
 sourceCompatibility = 1.8

Core/pom.xml

@@ -116,6 +116,12 @@
       <version>1.7.0-SNAPSHOT</version>
       <scope>runtime</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-slf4j-impl</artifactId>
+      <version>2.8.1</version>
+      <scope>runtime</scope>
+    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>

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

@@ -145,7 +145,8 @@ import java.util.UUID;
      * @see MainUtil#sendConsoleMessage(Captions, String...)
      */
     public void sendConsoleMessage(String message) {
-        PlotSquared.log(message);
+        // TODO: Re-implement
+        // PlotSquared.log(message);
     }
 
     /**

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

@@ -26,6 +26,8 @@
 package com.plotsquared.core;
 
 import com.plotsquared.core.configuration.Caption;
+import com.plotsquared.core.command.WE_Anywhere;
+import com.plotsquared.core.components.ComponentPresetManager;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.ConfigurationUtil;
@@ -46,6 +48,7 @@ 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.PlotPlayer;
 import com.plotsquared.core.plot.BlockBucket;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
@@ -66,6 +69,7 @@ import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.ReflectionUtils;
 import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.logger.ILogger;
+import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.task.TaskManager;
 import com.plotsquared.core.uuid.UUIDPipeline;
@@ -74,6 +78,11 @@ import com.sk89q.worldedit.math.BlockVector2;
 import lombok.Getter;
 import lombok.Setter;
 import javax.annotation.Nullable;
+import lombok.NonNull;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.annotation.Nonnull;
 import java.io.BufferedReader;
@@ -117,6 +126,8 @@ import java.util.zip.ZipInputStream;
 @SuppressWarnings({"WeakerAccess"})
 public class PlotSquared {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotSquared.class.getSimpleName());
+    private static final Set<Plot> EMPTY_SET = Collections.unmodifiableSet(Collections.emptySet());
     private static PlotSquared instance;
 
     // Implementation
@@ -139,8 +150,6 @@ public class PlotSquared {
     private HashMap<String, Set<PlotCluster>> clustersTmp;
     public HashMap<String, HashMap<PlotId, Plot>> plots_tmp;
     private YamlConfiguration config;
-    // Implementation logger
-    @Setter @Getter private ILogger logger;
     // Platform / Version / Update URL
     private PlotVersion version;
     // Files and configuration
@@ -163,7 +172,6 @@ public class PlotSquared {
 
         this.thread = Thread.currentThread();
         this.platform = iPlotMain;
-        this.logger = iPlotMain;
         Settings.PLATFORM = platform;
 
         //
@@ -174,9 +182,9 @@ public class PlotSquared {
         try {
             new ReflectionUtils(this.platform.getNMSPackage());
             try {
-                URL url = PlotSquared.class.getProtectionDomain().getCodeSource().getLocation();
+                URL logurl = PlotSquared.class.getProtectionDomain().getCodeSource().getLocation();
                 this.jarFile = new File(
-                    new URL(url.toURI().toString().split("\\!")[0].replaceAll("jar:file", "file"))
+                    new URL(logurl.toURI().toString().split("\\!")[0].replaceAll("jar:file", "file"))
                         .toURI().getPath());
             } catch (MalformedURLException | URISyntaxException | SecurityException e) {
                 e.printStackTrace();
@@ -258,42 +266,8 @@ public class PlotSquared {
         throw new IllegalStateException("Plot platform implementation is missing");
     }
 
-    /**
-     * Log a message to the IPlotMain logger.
-     *
-     * @param message Message to log
-     * @see PlotPlatform#log(String)
-     */
-    public static void log(Object message) {
-        if (message == null || (message instanceof Caption ?
-            ((Caption) message).getTranslated().isEmpty() :
-            message.toString().isEmpty())) {
-            return;
-        }
-        if (PlotSquared.get() == null || PlotSquared.get().getLogger() == null) {
-            System.out.printf("[P2][Info] %s\n", StringMan.getString(message));
-        } else {
-            PlotSquared.get().getLogger().log(StringMan.getString(message));
-        }
-    }
-
-    /**
-     * Log a message to the IPlotMain logger.
-     *
-     * @param message Message to log
-     * @see PlotPlatform#log(String)
-     */
-    public static void debug(@Nullable Object message) {
-        if (Settings.DEBUG) {
-            if (PlotSquared.get() == null || PlotSquared.get().getLogger() == null) {
-                System.out.printf("[P2][Debug] %s\n", StringMan.getString(message));
-            } else {
-                PlotSquared.get().getLogger().log(StringMan.getString(message));
-            }
-        }
-    }
-
     public void startExpiryTasks() {
+    private void startExpiryTasks() {
         if (Settings.Enabled_Components.PLOT_EXPIRY) {
             ExpireManager.IMP = new ExpireManager(this.eventDispatcher);
             ExpireManager.IMP.runAutomatedTask();
@@ -411,21 +385,16 @@ public class PlotSquared {
                 regionInts.forEach(l -> regions.add(BlockVector2.at(l[0], l[1])));
                 chunkInts.forEach(l -> chunks.add(BlockVector2.at(l[0], l[1])));
                 int height = (int) list.get(2);
-                PlotSquared.log(
+                logger.info("[P2] Incomplete road regeneration found. Restarting in world {} with height {}", plotArea.getWorldName(), height);
-                    Captions.PREFIX + "Incomplete road regeneration found. Restarting in world "
+                logger.info("[P2]  - Regions: {}", regions.size());
-                        + plotArea.getWorldName() + " with height " + height + ".");
+                logger.info("[P2]  - Chunks: {}", chunks.size());
-                PlotSquared.debug("   Regions: " + regions.size());
-                PlotSquared.debug("   Chunks: " + chunks.size());
                 HybridUtils.UPDATE = true;
                 PlotSquared.platform().getHybridUtils().scheduleRoadUpdate(plotArea, regions, height, chunks);
             } catch (IOException | ClassNotFoundException e) {
-                PlotSquared.log(Captions.PREFIX + "Error restarting road regeneration.");
+                logger.error("[P2] Error restarting road regeneration", e);
-                e.printStackTrace();
             } finally {
                 if (!file.delete()) {
-                    PlotSquared.log(
+                    logger.error("[P2] Error deleting persistent_regen_data_{}. Please delete this file manually", plotArea.getId());
-                        Captions.PREFIX + "Error deleting persistent_regen_data_" + plotArea.getId()
-                            + ". Please manually delete this file.");
                 }
             }
         });
@@ -811,7 +780,6 @@ public class PlotSquared {
         }
         if (type == PlotAreaType.NORMAL) {
             if (getPlotAreaManager().getPlotAreas(world, null).length != 0) {
-                debug("World possibly already loaded: " + world);
                 return;
             }
             IndependentPlotGenerator plotGenerator;
@@ -839,15 +807,13 @@ public class PlotSquared {
             // Conventional plot generator
             PlotArea plotArea = plotGenerator.getNewPlotArea(world, null, null, null);
             PlotManager plotManager = plotArea.getPlotManager();
-            PlotSquared.log(Captions.PREFIX + "&aDetected world load for '" + world + "'");
+            logger.info("[P2] Detected world load for '{}'", world);
-            PlotSquared
+            logger.info("[P2]  - generator: {}>{}", baseGenerator, plotGenerator);
-                .log(Captions.PREFIX + "&3 - generator: &7" + baseGenerator + ">" + plotGenerator);
+            logger.info("[P2]  - plot world: {}", plotArea.getClass().getCanonicalName());
-            PlotSquared.log(Captions.PREFIX + "&3 - plotworld: &7" + plotArea.getClass().getName());
+            logger.info("[P2] - plot area manager: {}", plotManager.getClass().getCanonicalName());
-            PlotSquared.log(
+            if (!this.worlds.contains(path)) {
-                Captions.PREFIX + "&3 - getPlotAreaManager(): &7" + plotManager.getClass().getName());
+                this.worlds.createSection(path);
-            if (!this.worldConfiguration.contains(path)) {
+                worldSection = this.worlds.getConfigurationSection(path);
-                this.worldConfiguration.createSection(path);
-                worldSection = this.worldConfiguration.getConfigurationSection(path);
             }
             plotArea.saveConfiguration(worldSection);
             plotArea.loadDefaultConfiguration(worldSection);
@@ -866,10 +832,9 @@ public class PlotSquared {
             ConfigurationSection areasSection = worldSection.getConfigurationSection("areas");
             if (areasSection == null) {
                 if (getPlotAreaManager().getPlotAreas(world, null).length != 0) {
-                    debug("World possibly already loaded: " + world);
                     return;
                 }
-                PlotSquared.log(Captions.PREFIX + "&aDetected world load for '" + world + "'");
+                logger.info("[P2] Detected world load for '{}'", world);
                 String gen_string = worldSection.getString("generator.plugin", platform.getPluginName());
                 if (type == PlotAreaType.PARTIAL) {
                     Set<PlotCluster> clusters =
@@ -885,8 +850,7 @@ public class PlotSquared {
                         String fullId = name + "-" + pos1 + "-" + pos2;
                         worldSection.createSection("areas." + fullId);
                         DBFunc.replaceWorld(world, world + ";" + name, pos1, pos2); // NPE
-
+                        logger.info("[P2]  - {}-{}-{}", name, pos1, pos2);
-                        PlotSquared.log(Captions.PREFIX + "&3 - " + name + "-" + pos1 + "-" + pos2);
                         GeneratorWrapper<?> areaGen = this.platform.getGenerator(world, gen_string);
                         if (areaGen == null) {
                             throw new IllegalArgumentException("Invalid Generator: " + gen_string);
@@ -900,14 +864,10 @@ public class PlotSquared {
                         } catch (IOException e) {
                             e.printStackTrace();
                         }
-                        PlotSquared.log(
+                        logger.info("[P2]  | generator: {}>{}", baseGenerator, areaGen);
-                            Captions.PREFIX + "&c | &9generator: &7" + baseGenerator + ">"
+                        logger.info("[P2]  | plot world: {}", pa);
-                                + areaGen);
+                        logger.info("[P2]  | manager: {}", pa);
-                        PlotSquared.log(Captions.PREFIX + "&c | &9plotworld: &7" + pa);
+                        logger.info("[P2] Note: Area created for cluster '{}' (invalid or old configuration?)", name);
-                        PlotSquared.log(Captions.PREFIX + "&c | &9manager: &7" + pa);
-                        PlotSquared.log(
-                            Captions.PREFIX + "&cNote: &7Area created for cluster:" + name
-                                + " (invalid or old configuration?)");
                         areaGen.getPlotGenerator().initialize(pa);
                         areaGen.augment(pa);
                         toLoad.add(pa);
@@ -929,10 +889,9 @@ public class PlotSquared {
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
-                PlotSquared
+                logger.info("[P2]  - generator: {}>{}", baseGenerator, areaGen);
-                    .log(Captions.PREFIX + "&3 - generator: &7" + baseGenerator + ">" + areaGen);
+                logger.info("[P2]  - plot world: {}", pa);
-                PlotSquared.log(Captions.PREFIX + "&3 - plotworld: &7" + pa);
+                logger.info("[P2]  - plot area manager: {}", pa.getPlotManager());
-                PlotSquared.log(Captions.PREFIX + "&3 - getPlotAreaManager(): &7" + pa.getPlotManager());
                 areaGen.getPlotGenerator().initialize(pa);
                 areaGen.augment(pa);
                 addPlotArea(pa);
@@ -944,7 +903,7 @@ public class PlotSquared {
                         + PlotAreaType.AUGMENTED + "`");
             }
             for (String areaId : areasSection.getKeys(false)) {
-                PlotSquared.log(Captions.PREFIX + " - " + areaId);
+                logger.info("[P2]  - {}", areaId);
                 String[] split = areaId.split("(?<=[^;-])-");
                 if (split.length != 3) {
                     throw new IllegalArgumentException("Invalid Area identifier: " + areaId
@@ -1006,11 +965,10 @@ public class PlotSquared {
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
-                PlotSquared.log(Captions.PREFIX + "&aDetected area load for '" + world + "'");
+                logger.info("[P2] Detected area load for '{}'", world);
-                PlotSquared
+                logger.info("[P2]  | generator: {}>{}", baseGenerator, areaGen);
-                    .log(Captions.PREFIX + "&c | &9generator: &7" + baseGenerator + ">" + areaGen);
+                logger.info("[P2]  | plot world: {}", pa);
-                PlotSquared.log(Captions.PREFIX + "&c | &9plotworld: &7" + pa);
+                logger.info("[P2]  | manager: {}", pa.getPlotManager());
-                PlotSquared.log(Captions.PREFIX + "&c | &9manager: &7" + pa.getPlotManager());
                 areaGen.getPlotGenerator().initialize(pa);
                 areaGen.augment(pa);
                 addPlotArea(pa);
@@ -1081,7 +1039,7 @@ public class PlotSquared {
             for (String element : split) {
                 String[] pair = element.split("=");
                 if (pair.length != 2) {
-                    PlotSquared.log("&cNo value provided for: &7" + element);
+                    logger.error("[P2] No value provided for '{}'", element);
                     return false;
                 }
                 String key = pair[0].toLowerCase();
@@ -1129,12 +1087,12 @@ public class PlotSquared {
                                 ConfigurationUtil.BLOCK_BUCKET.parseString(value).toString());
                             break;
                         default:
-                            PlotSquared.log("&cKey not found: &7" + element);
+                            logger.error("[P2] Key not found: {}", element);
                             return false;
                     }
                 } catch (Exception e) {
+                    logger.error("[P2] Invalid value '{}' for arg '{}'", value, element);
                     e.printStackTrace();
-                    PlotSquared.log("&cInvalid value: &7" + value + " in arg " + element);
                     return false;
                 }
             }
@@ -1201,8 +1159,8 @@ public class PlotSquared {
                 }
             }
         } catch (IOException e) {
+            logger.error("[P2] Could not save {}", file);
             e.printStackTrace();
-            PlotSquared.log("&cCould not save " + file);
         }
     }
 
@@ -1224,8 +1182,8 @@ public class PlotSquared {
             // Close the connection
             DBFunc.close();
         } catch (NullPointerException throwable) {
+            logger.error("[P2] Could not close database connection", throwable);
             throwable.printStackTrace();
-            PlotSquared.log("&cCould not close database connection!");
         }
     }
 
@@ -1237,10 +1195,9 @@ public class PlotSquared {
             HybridUtils.regions.isEmpty() && HybridUtils.chunks.isEmpty())) {
             return;
         }
-        PlotSquared.log(
+        logger.info("[P2] Road regeneration incomplete. Saving incomplete regions to disk");
-            Captions.PREFIX + "Road regeneration incomplete. Saving incomplete regions to disk.");
+        logger.info("[P2]  - regions: {}", HybridUtils.regions.size());
-        PlotSquared.debug("   Regions: " + HybridUtils.regions.size());
+        logger.info("[P2]  - chunks: {}", HybridUtils.chunks.size());
-        PlotSquared.debug("   Chunks: " + HybridUtils.chunks.size());
         ArrayList<int[]> regions = new ArrayList<>();
         ArrayList<int[]> chunks = new ArrayList<>();
         for (BlockVector2 r : HybridUtils.regions) {
@@ -1257,16 +1214,14 @@ public class PlotSquared {
             this.platform.getDirectory() + File.separator + "persistent_regen_data_" + HybridUtils.area
                 .getId() + "_" + HybridUtils.area.getWorldName());
         if (file.exists() && !file.delete()) {
-            PlotSquared.log(Captions.PREFIX
+            logger.error("[P2] persistent_regene_data file already exists and could not be deleted");
-                + "persistent_regen_data file already exists and could not be deleted.");
             return;
         }
         try (ObjectOutputStream oos = new ObjectOutputStream(
             Files.newOutputStream(file.toPath(), StandardOpenOption.CREATE_NEW))) {
             oos.writeObject(list);
         } catch (IOException e) {
-            PlotSquared.log(Captions.PREFIX + "Error create persistent_regen_data file.");
+            logger.error("[P2] Error creating persistent_region_data file", e);
-            e.printStackTrace();
         }
     }
 
@@ -1286,7 +1241,7 @@ public class PlotSquared {
                 File file = MainUtil.getFile(platform.getDirectory(), Storage.SQLite.DB + ".db");
                 database = new SQLite(file);
             } else {
-                PlotSquared.log(Captions.PREFIX + "&cNo storage type is set!");
+                logger.error("[P2] No storage type is set. Disabling PlotSquared");
                 this.platform.shutdown(); //shutdown used instead of disable because no database is set
                 return;
             }
@@ -1304,20 +1259,13 @@ public class PlotSquared {
             }
             this.clustersTmp = DBFunc.getClusters();
         } catch (ClassNotFoundException | SQLException e) {
-            PlotSquared.log(Captions.PREFIX
+            logger.error("[P2] Failed to open database connection ({}). Disabling PlotSquared", Storage.MySQL.USE ? "MySQL" : "SQLite");
-                + "&cFailed to open DATABASE connection. The plugin will disable itself.");
+            logger.error("[P2] ==== Here is an ugly stacktrace, if you are interested in those things ===");
-            if (Storage.MySQL.USE) {
-                PlotSquared.log("$4MYSQL");
-            } else if (Storage.SQLite.USE) {
-                PlotSquared.log("$4SQLITE");
-            }
-            PlotSquared.log(
-                "&d==== Here is an ugly stacktrace, if you are interested in those things ===");
             e.printStackTrace();
-            PlotSquared.log("&d==== End of stacktrace ====");
+            logger.error("[P2] &d==== End of stacktrace ====");
-            PlotSquared.log("&6Please go to the " + platform.getPluginName()
+            logger.error("[P2] &6Please go to the {} 'storage.yml' and configure the database correctly",
-                + " 'storage.yml' and configure the database correctly.");
+                imp().getPluginName());
-            this.platform.shutdown(); //shutdown used instead of disable because of database error
+            this.IMP.shutdown(); //shutdown used instead of disable because of database error
         }
     }
 
@@ -1341,7 +1289,7 @@ public class PlotSquared {
                     try {
                         worldConfiguration.save(worldsFile);
                     } catch (IOException e) {
-                        PlotSquared.debug("Failed to save " + platform.getPluginName() + " worlds.yml");
+                        logger.error("[P2] Failed to save worlds.yml", e);
                         e.printStackTrace();
                     }
                 }
@@ -1374,14 +1322,12 @@ public class PlotSquared {
     public boolean setupConfigs() {
         File folder = new File(this.platform.getDirectory(), "config");
         if (!folder.exists() && !folder.mkdirs()) {
-            PlotSquared.log(Captions.PREFIX
+            logger.error("[P2] Failed to create the /plugins/config folder. Please create it manually");
-                + "&cFailed to create the /plugins/config folder. Please create it manually.");
         }
         try {
             this.worldsFile = new File(folder, "worlds.yml");
             if (!this.worldsFile.exists() && !this.worldsFile.createNewFile()) {
-                PlotSquared.log(
+                logger.error("[P2] Could not create the worlds file. Please create 'worlds.yml' manually");
-                    "Could not create the worlds file, please create \"worlds.yml\" manually.");
             }
             this.worldConfiguration = YamlConfiguration.loadConfiguration(this.worldsFile);
 
@@ -1391,21 +1337,20 @@ public class PlotSquared {
                         .equalsIgnoreCase(LegacyConverter.CONFIGURATION_VERSION) && !this.worldConfiguration
                         .getString("configuration_version").equalsIgnoreCase("v5"))) {
                     // Conversion needed
-                    log(Captions.LEGACY_CONFIG_FOUND.getTranslated());
+                    logger.info(Captions.LEGACY_CONFIG_FOUND.getTranslated());
                     try {
                         com.google.common.io.Files
                             .copy(this.worldsFile, new File(folder, "worlds.yml.old"));
-                        log(Captions.LEGACY_CONFIG_BACKUP.getTranslated());
+                        logger.info(Captions.LEGACY_CONFIG_BACKUP.getTranslated());
                         final ConfigurationSection worlds =
                             this.worldConfiguration.getConfigurationSection("worlds");
                         final LegacyConverter converter = new LegacyConverter(worlds);
                         converter.convert();
                         this.worldConfiguration.set("worlds", worlds);
                         this.setConfigurationVersion(LegacyConverter.CONFIGURATION_VERSION);
-                        log(Captions.LEGACY_CONFIG_DONE.getTranslated());
+                        logger.info(Captions.LEGACY_CONFIG_DONE.getTranslated());
                     } catch (final Exception e) {
-                        log(Captions.LEGACY_CONFIG_CONVERSION_FAILED.getTranslated());
+                        logger.error(Captions.LEGACY_CONFIG_CONVERSION_FAILED.getTranslated(), e);
-                        e.printStackTrace();
                     }
                     // Disable plugin
                     this.platform.shutdown();
@@ -1415,18 +1360,17 @@ public class PlotSquared {
                 this.worldConfiguration.set("configuration_version", LegacyConverter.CONFIGURATION_VERSION);
             }
         } catch (IOException ignored) {
-            PlotSquared.log("Failed to save settings.yml");
+            logger.error("[P2] Failed to save worlds.yml");
         }
         try {
             this.configFile = new File(folder, "settings.yml");
             if (!this.configFile.exists() && !this.configFile.createNewFile()) {
-                PlotSquared.log(
+                logger.error("[P2] Could not create the settings file. Please create 'settings.yml' manually");
-                    "Could not create the settings file, please create \"settings.yml\" manually.");
             }
             this.config = YamlConfiguration.loadConfiguration(this.configFile);
             setupConfig();
         } catch (IOException ignored) {
-            PlotSquared.log("Failed to save settings.yml");
+            logger.error("[P2] Failed to save settings.yml");
         }
         try {
             // TODO: REMOVE
@@ -1437,27 +1381,28 @@ public class PlotSquared {
                     styleFile.getParentFile().mkdirs();
                 }
                 if (!styleFile.createNewFile()) {
-                    PlotSquared.log(
+                    logger.error("[P2] Failed to create the style file. Please create 'translations/style.yml' manually");
-                        "Could not create the style file, please create \"translations/style.yml\" manually");
                 }
             }
             this.style = YamlConfiguration.loadConfiguration(styleFile);
             setupStyle();
-            this.style.save(styleFile);
+        } catch (IOException ignored) {
-        } catch (IOException err) {
+            logger.error("[P2] Failed to save style.yml");
-            err.printStackTrace();
-            PlotSquared.log("Failed to save style.yml");
         }
         try {
             this.storageFile = new File(folder, "storage.yml");
             if (!this.storageFile.exists() && !this.storageFile.createNewFile()) {
-                PlotSquared.log(
+                logger.error("[P2] Could not create the storage settings file. Please create 'storage.yml' manually");
-                    "Could not the storage settings file, please create \"storage.yml\" manually.");
             }
             YamlConfiguration.loadConfiguration(this.storageFile);
             setupStorage();
         } catch (IOException ignored) {
-            PlotSquared.log("Failed to save storage.yml");
+            logger.error("[P2] Failed to save storage.yml");
+        }
+        try {
+            this.style.save(this.styleFile);
+        } catch (IOException e) {
+            logger.error("[P2] Configuration file saving failed", e);
         }
         return true;
     }
@@ -1488,9 +1433,7 @@ public class PlotSquared {
         if (Settings.DEBUG) {
             Map<String, Object> components = Settings.getFields(Settings.Enabled_Components.class);
             for (Entry<String, Object> component : components.entrySet()) {
-                PlotSquared.log(Captions.PREFIX + String
+                logger.info("[P2] Key: {} | Value: {}", component.getKey(), component.getValue());
-                    .format("&cKey: &6%s&c, Value: &6%s", component.getKey(),
-                        component.getValue()));
             }
         }
     }

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

@@ -48,6 +48,8 @@ import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 @CommandDeclaration(command = "claim",
     aliases = "c",
@@ -58,6 +60,8 @@ import javax.annotation.Nullable;
     usage = "/plot claim")
 public class Claim extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Claim.class.getSimpleName());
+
     private final EventDispatcher eventDispatcher;
     private final EconHandler econHandler;
 
@@ -145,7 +149,7 @@ public class Claim extends SubCommand {
         DBFunc.createPlotSafe(plot, () -> TaskManager.getImplementation().sync(new RunnableVal<Object>() {
             @Override public void run(Object value) {
                 if (!plot.claim(player, true, finalSchematic, false)) {
-                    PlotSquared.get().getLogger().log(Captions.PREFIX.getTranslated() + String
+                    logger.info(Captions.PREFIX.getTranslated() + String
                         .format("Failed to claim plot %s", plot.getId().toCommaSeparatedString()));
                     sendMessage(player, Captions.PLOT_NOT_CLAIMED);
                     plot.setOwnerAbs(null);
@@ -160,7 +164,7 @@ public class Claim extends SubCommand {
                 }
             }
         }), () -> {
-            PlotSquared.get().getLogger().log(Captions.PREFIX.getTranslated() + String
+            logger.info(Captions.PREFIX.getTranslated() + String
                 .format("Failed to add plot %s to the database",
                     plot.getId().toCommaSeparatedString()));
             sendMessage(player, Captions.PLOT_NOT_CLAIMED);

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

@@ -40,6 +40,8 @@ import com.plotsquared.core.util.task.TaskManager;
 import com.plotsquared.core.uuid.UUIDMapping;
 import com.sk89q.worldedit.world.entity.EntityType;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.Collection;
 import java.util.Comparator;
@@ -52,6 +54,8 @@ import java.util.Map;
     permission = "plots.admin")
 public class Debug extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Debug.class.getSimpleName());
+
     private final PlotAreaManager plotAreaManager;
     private final RegionManager regionManager;
 
@@ -91,6 +95,13 @@ public class Debug extends SubCommand {
             }
             return true;
         }
+        if (args.length > 0 && "logging".equalsIgnoreCase(args[0])) {
+            logger.info("[P2] Info!");
+            logger.warn("[P2] Warning!");
+            logger.error("[P2] Error!", new RuntimeException());
+            logger.debug("[P2] Debug!");
+            return true;
+        }
         if (args.length > 0 && "entitytypes".equalsIgnoreCase(args[0])) {
             EntityCategories.init();
             player.sendMessage(Captions.PREFIX.getTranslated() + "§cEntity Categories: ");

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

@@ -65,6 +65,8 @@ import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.world.block.BlockState;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.script.Bindings;
 import javax.script.ScriptContext;
@@ -88,6 +90,9 @@ import java.util.concurrent.CompletableFuture;
     category = CommandCategory.DEBUG)
 public class DebugExec extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + DebugExec.class.getSimpleName());
+
+
     private final PlotAreaManager plotAreaManager;
     private final EventDispatcher eventDispatcher;
     private final WorldEdit worldEdit;
@@ -464,7 +469,6 @@ public class DebugExec extends SubCommand {
             }
             init();
             this.scope.put("PlotPlayer", player);
-            PlotSquared.debug("> " + script);
             try {
                 if (async) {
                     final String toExec = script;
@@ -476,14 +480,12 @@ public class DebugExec extends SubCommand {
                         } catch (ScriptException e) {
                             e.printStackTrace();
                         }
-                        PlotSquared
+                        logger.info("[P2] > {}ms -> {}", System.currentTimeMillis() - start, result);
-                            .log("> " + (System.currentTimeMillis() - start) + "ms -> " + result);
                     });
                 } else {
                     long start = System.currentTimeMillis();
                     Object result = this.engine.eval(script, this.scope);
-                    PlotSquared
+                    logger.info("[P2] > {}ms -> {}", System.currentTimeMillis() - start, result);
-                        .log("> " + (System.currentTimeMillis() - start) + "ms -> " + result);
                 }
                 return true;
             } catch (ScriptException e) {

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

@@ -38,6 +38,8 @@ 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.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.util.HashMap;
@@ -56,6 +58,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
     confirmation = true)
 public class Purge extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Purge.class.getSimpleName());
+
     private final PlotAreaManager plotAreaManager;
     private final PlotListener plotListener;
 
@@ -182,7 +186,9 @@ public class Purge extends SubCommand {
             "/plot purge " + StringMan.join(args, " ") + " (" + toDelete.size() + " plots)";
         boolean finalClear = clear;
         Runnable run = () -> {
-            PlotSquared.debug("Calculating plots to purge, please wait...");
+            if (Settings.DEBUG) {
+                logger.info("[P2] Calculating plots to purge, please wait...");
+            }
             HashSet<Integer> ids = new HashSet<>();
             Iterator<Plot> iterator = toDelete.iterator();
             AtomicBoolean cleared = new AtomicBoolean(true);
@@ -195,8 +201,11 @@ public class Purge extends SubCommand {
                             try {
                                 ids.add(plot.temp);
                                 if (finalClear) {
-                                    plot.clear(false, true, () -> PlotSquared
+                                    plot.clear(false, true, () -> {
-                                        .debug("Plot " + plot.getId() + " cleared by purge."));
+                                        if (Settings.DEBUG) {
+                                            logger.info("[P2] Plot {} cleared by purge", plot.getId());
+                                        }
+                                    });
                                 } else {
                                     plot.removeSign();
                                 }
@@ -205,12 +214,8 @@ public class Purge extends SubCommand {
                                     Purge.this.plotListener.plotEntry(pp, plot);
                                 }
                             } catch (NullPointerException e) {
-                                PlotSquared.log(
+                                logger.error("[P2] NullPointer during purge detected. This is likely"
-                                    "NullPointer during purge detected. This is likely because you are "
+                                    + " because you are deleting a world that has been removed", e);
-                                        + "deleting a world that has been removed.");
-                                if (Settings.DEBUG) {
-                                    e.printStackTrace();
-                                }
                             }
                         }
                         cleared.set(true);

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

@@ -45,6 +45,8 @@ 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.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.util.HashSet;
@@ -60,6 +62,10 @@ import java.util.Set;
     category = CommandCategory.ADMINISTRATION)
 public class Trim extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Trim.class.getSimpleName());
+    public static ArrayList<Plot> expired = null;
+    private static volatile boolean TASK = false;
+
     private final PlotAreaManager plotAreaManager;
     private final WorldUtil worldUtil;
     private final GlobalBlockQueue blockQueue;
@@ -75,8 +81,6 @@ public class Trim extends SubCommand {
         this.regionManager = regionManager;
     }
 
-    private static volatile boolean TASK = false;
-
     /**
      * Runs the result task with the parameters (viable, nonViable).
      *
@@ -140,14 +144,15 @@ public class Trim extends SubCommand {
             @Override public void run(Set<BlockVector2> viable, final Set<BlockVector2> nonViable) {
                 Runnable regenTask;
                 if (regen) {
-                    PlotSquared.log("Starting regen task:");
+                    logger.info("[P2] Starting regen task");
-                    PlotSquared.log(" - This is a VERY slow command");
+                    logger.info("[P2]  - This is a VERY slow command");
-                    PlotSquared.log(" - It will say `Trim done!` when complete");
+                    logger.info("[P2]  - It will say 'Trim done!' when complete");
                     regenTask = new Runnable() {
                         @Override public void run() {
                             if (nonViable.isEmpty()) {
                                 Trim.TASK = false;
                                 player.sendMessage("Trim done!");
+                                logger.info("[P2] Trim done!");
                                 return;
                             }
                             Iterator<BlockVector2> iterator = nonViable.iterator();

Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java

@@ -46,6 +46,8 @@ import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.world.item.ItemTypes;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
@@ -59,6 +61,8 @@ import java.util.stream.Collectors;
 
 public class ComponentPresetManager {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ComponentPresetManager.class.getSimpleName());
+
     private final List<ComponentPreset> presets;
     private final String guiName;
     private final EconHandler econHandler;
@@ -77,7 +81,7 @@ public class ComponentPresetManager {
                 e.printStackTrace();
             }
             if (!created) {
-                PlotSquared.log(Captions.PREFIX + "Failed to create components.yml");
+                logger.error("[P2] Failed to create components.yml");
                 this.guiName = "&cInvalid!";
                 this.presets = new ArrayList<>();
                 return;
@@ -93,8 +97,7 @@ public class ComponentPresetManager {
             try {
                 yamlConfiguration.save(file);
             } catch (IOException e) {
-                PlotSquared.log(Captions.PREFIX + "Failed to save default values to components.yml");
+                logger.error("[P2] Failed to save default values to components.yml", e);
-                e.printStackTrace();
             }
         }
         this.guiName = yamlConfiguration.getString("title", "&6Plot Components");
@@ -112,8 +115,7 @@ public class ComponentPresetManager {
             try {
                 yamlConfiguration.save(file);
             } catch (final IOException e) {
-                PlotSquared.log(Captions.PREFIX + "Failed to save default values to components.yml");
+                logger.error("[P2] Failed to save default values to components.yml", e);
-                e.printStackTrace();
             }
             this.presets = defaultPreset;
         }

Core/src/main/java/com/plotsquared/core/configuration/Caption.java

@@ -25,7 +25,6 @@
  */
 package com.plotsquared.core.configuration;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.util.StringMan;
 
@@ -44,7 +43,8 @@ public interface Caption {
     default boolean send(PlotPlayer caller, Object... args) {
         String msg = CaptionUtility.format(caller, this, args);
         if (caller == null) {
-            PlotSquared.log(msg);
+            // TODO: Replace with adventure
+            System.out.println(msg);
         } else {
             caller.sendMessage(msg);
         }

Core/src/main/java/com/plotsquared/core/configuration/Config.java

@@ -25,10 +25,11 @@
  */
 package com.plotsquared.core.configuration;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Settings.Enabled_Components;
 import com.plotsquared.core.configuration.file.YamlConfiguration;
 import com.plotsquared.core.util.StringMan;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.PrintWriter;
@@ -46,6 +47,8 @@ import java.util.Map;
 
 public class Config {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Config.class.getSimpleName());
+
     /**
      * Get the value for a node<br>
      * Probably throws some error if you try to get a non existent key
@@ -68,7 +71,6 @@ public class Config {
                 }
             }
         }
-        PlotSquared.debug("Failed to get config option: " + key);
         return null;
     }
 
@@ -95,15 +97,13 @@ public class Config {
                     }
                     field.set(instance, value);
                     return;
-                } catch (Throwable e) {
+                } catch (final Throwable e) {
-                    PlotSquared.debug(
+                    logger.error("[P2] Invalid configuration value '{}: {}' in {}", key, value, root.getSimpleName());
-                        "Invalid configuration value: " + key + ": " + value + " in " + root
-                            .getSimpleName());
                     e.printStackTrace();
                 }
             }
         }
-        PlotSquared.debug("Failed to set config option: " + key + ": " + value + " | " + instance);
+        logger.error("[P2] Failed to set config option '{}: {}' | {}", key, value, instance);
     }
 
     public static boolean load(File file, Class<? extends Config> root) {
@@ -288,10 +288,10 @@ public class Config {
             Field field = instance.getClass().getField(toFieldName(split[split.length - 1]));
             setAccessible(field);
             return field;
-        } catch (Throwable e) {
+        } catch (final Throwable e) {
-            PlotSquared.debug(
+            logger.error("[P2] Invalid config field: {} for {}",
-                "Invalid config field: " + StringMan.join(split, ".") + " for " + toNodeName(
+                StringMan.join(split, "."), toNodeName(instance.getClass().getSimpleName()));
-                    instance.getClass().getSimpleName()));
+            e.printStackTrace();
             return null;
         }
     }

Core/src/main/java/com/plotsquared/core/configuration/file/YamlConfiguration.java

@@ -25,10 +25,12 @@
  */
 package com.plotsquared.core.configuration.file;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Configuration;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.InvalidConfigurationException;
+import com.plotsquared.core.configuration.Settings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.yaml.snakeyaml.DumperOptions;
 import org.yaml.snakeyaml.Yaml;
 import org.yaml.snakeyaml.error.YAMLException;
@@ -45,6 +47,9 @@ import java.util.Map;
  * Note that this implementation is not synchronized.
  */
 public class YamlConfiguration extends FileConfiguration {
+
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + YamlConfiguration.class.getSimpleName());
+
     private static final String COMMENT_PREFIX = "# ";
     private static final String BLANK_CONFIG = "{}\n";
     private final DumperOptions yamlOptions = new DumperOptions();
@@ -76,11 +81,13 @@ public class YamlConfiguration extends FileConfiguration {
                     dest = new File(file.getAbsolutePath() + "_broken_" + i++);
                 }
                 Files.copy(file.toPath(), dest.toPath(), StandardCopyOption.REPLACE_EXISTING);
-                PlotSquared.debug("&dCould not read: &7" + file);
+                if (Settings.DEBUG) {
-                PlotSquared.debug("&dRenamed to: &7" + dest.getName());
+                    logger.error("[P2] Could not read: {}", file);
-                PlotSquared.debug("&c============ Full stacktrace ============");
+                    logger.error("[P2] Renamed to: {}", file);
+                    logger.error("[P2] ============ Full stacktrace ============");
                     ex.printStackTrace();
-                PlotSquared.debug("&c=========================================");
+                    logger.error("[P2] =========================================");
+                }
             } catch (IOException e) {
                 e.printStackTrace();
             }

Core/src/main/java/com/plotsquared/core/database/SQLManager.java

@@ -52,6 +52,8 @@ import com.plotsquared.core.util.StringMan;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.sql.Connection;
 import java.sql.DatabaseMetaData;
@@ -83,6 +85,8 @@ import java.util.concurrent.atomic.AtomicInteger;
 @SuppressWarnings("SqlDialectInspection")
 public class SQLManager implements AbstractDB {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SQLManager.class.getSimpleName());
+
     // Public final
     public final String SET_OWNER;
     public final String GET_ALL_PLOTS;
@@ -370,11 +374,12 @@ public class SQLManager implements AbstractDB {
                     try {
                         task.run();
                     } catch (Throwable e) {
-                        PlotSquared.debug("============ DATABASE ERROR ============");
+                        logger.error("[P2] ============ DATABASE ERROR ============");
-                        PlotSquared.debug("There was an error updating the database.");
+                        logger.error("[P2] ============ DATABASE ERROR ============");
-                        PlotSquared.debug(" - It will be corrected on shutdown");
+                        logger.error("[P2] There was an error updating the database.");
+                        logger.error("[P2]  - It will be corrected on shutdown");
                         e.printStackTrace();
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                     }
                 }
                 commit();
@@ -424,12 +429,12 @@ public class SQLManager implements AbstractDB {
                         }
                         lastTask = task;
                     } catch (Throwable e) {
-                        PlotSquared.debug("============ DATABASE ERROR ============");
+                        logger.error("[P2] ============ DATABASE ERROR ============");
-                        PlotSquared.debug("There was an error updating the database.");
+                        logger.error("[P2] There was an error updating the database.");
-                        PlotSquared.debug(" - It will be corrected on shutdown");
+                        logger.error("[P2]  - It will be corrected on shutdown");
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                         e.printStackTrace();
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                     }
                 }
                 if (statement != null && task != null) {
@@ -469,12 +474,12 @@ public class SQLManager implements AbstractDB {
                         }
                         lastTask = task;
                     } catch (Throwable e) {
-                        PlotSquared.debug("============ DATABASE ERROR ============");
+                        logger.error("[P2] ============ DATABASE ERROR ============");
-                        PlotSquared.debug("There was an error updating the database.");
+                        logger.error("[P2] There was an error updating the database.");
-                        PlotSquared.debug(" - It will be corrected on shutdown");
+                        logger.error("[P2]  - It will be corrected on shutdown");
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                         e.printStackTrace();
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                     }
                 }
                 if (statement != null && task != null) {
@@ -515,12 +520,12 @@ public class SQLManager implements AbstractDB {
                         }
                         lastTask = task;
                     } catch (Throwable e) {
-                        PlotSquared.debug("============ DATABASE ERROR ============");
+                        logger.error("[P2] ============ DATABASE ERROR ============");
-                        PlotSquared.debug("There was an error updating the database.");
+                        logger.error("[P2] There was an error updating the database.");
-                        PlotSquared.debug(" - It will be corrected on shutdown");
+                        logger.error("[P2]  - It will be corrected on shutdown");
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                         e.printStackTrace();
-                        PlotSquared.debug("========================================");
+                        logger.error("[P2] ========================================");
                     }
                 }
                 if (statement != null && task != null) {
@@ -544,12 +549,12 @@ public class SQLManager implements AbstractDB {
                 this.plotTasks.clear();
             }
         } catch (Throwable e) {
-            PlotSquared.debug("============ DATABASE ERROR ============");
+            logger.error("[P2] ============ DATABASE ERROR ============");
-            PlotSquared.debug("There was an error updating the database.");
+            logger.error("[P2] There was an error updating the database.");
-            PlotSquared.debug(" - It will be corrected on shutdown");
+            logger.error("[P2]  - It will be corrected on shutdown");
-            PlotSquared.debug("========================================");
+            logger.error("[P2] ========================================");
             e.printStackTrace();
-            PlotSquared.debug("========================================");
+            logger.error("[P2] ========================================");
         }
         return false;
     }
@@ -637,9 +642,7 @@ public class SQLManager implements AbstractDB {
                                         }
                                     })))));
                     } catch (SQLException e) {
-                        e.printStackTrace();
+                        logger.warn("[P2] Failed to set all flags and member tiers for plots", e);
-                        PlotSquared
-                            .debug("&7[WARN] Failed to set all flags and member tiers for plots");
                         try {
                             SQLManager.this.connection.commit();
                         } catch (SQLException e1) {
@@ -648,8 +651,7 @@ public class SQLManager implements AbstractDB {
                     }
                 });
             } catch (Exception e) {
-                e.printStackTrace();
+                logger.warn("[P2] Warning! Failed to set all helper for plots", e);
-                PlotSquared.debug("&7[WARN] Failed to set all helpers for plots");
                 try {
                     SQLManager.this.connection.commit();
                 } catch (SQLException e1) {
@@ -718,21 +720,19 @@ public class SQLManager implements AbstractDB {
                 try {
                     preparedStatement.executeBatch();
                 } catch (final Exception e) {
-                    PlotSquared.log(Captions.PREFIX.getTranslated()
+                    logger.error("[P2] Failed to store flag values for plot with entry ID: {}", plot);
-                        + "Failed to store flag values for plot with entry ID: " + plot.getId());
                     e.printStackTrace();
                     continue;
                 }
-                PlotSquared.debug(Captions.PREFIX.getTranslated()
+                if (Settings.DEBUG) {
-                    + "- Finished converting flags for plot with entry ID: " + plot.getId());
+                    logger.info("[P2] - Finished converting flag values for plot with entry ID: {}",
+                        plot.getId());
+                }
             }
         } catch (final Exception e) {
-            PlotSquared.log(Captions.PREFIX.getTranslated() + "Failed to store flag values:");
+            logger.error("[P2] Failed to store flag values", e);
-            e.printStackTrace();
         }
-        PlotSquared.log(
+        logger.info("[P2] Finished converting flags ({} plots processed)", plots.size());
-            Captions.PREFIX.getTranslated() + "Finished converting flags (" + plots.size()
-                + " plots processed)");
         whenDone.run();
     }
 
@@ -840,8 +840,6 @@ public class SQLManager implements AbstractDB {
                 last = subList.size();
                 preparedStmt.addBatch();
             }
-            PlotSquared.debug(
-                "&aBatch 1: " + count + " | " + objList.get(0).getClass().getCanonicalName());
             preparedStmt.executeBatch();
             preparedStmt.clearParameters();
             preparedStmt.close();
@@ -851,8 +849,8 @@ public class SQLManager implements AbstractDB {
             return;
         } catch (SQLException e) {
             if (this.mySQL) {
+                logger.error("[P2] 1: | {}", objList.get(0).getClass().getCanonicalName());
                 e.printStackTrace();
-                PlotSquared.debug("&cERROR 1:  | " + objList.get(0).getClass().getCanonicalName());
             }
         }
         try {
@@ -884,26 +882,23 @@ public class SQLManager implements AbstractDB {
                 last = subList.size();
                 preparedStmt.addBatch();
             }
-            PlotSquared.debug(
-                "&aBatch 2: " + count + " | " + objList.get(0).getClass().getCanonicalName());
             preparedStmt.executeBatch();
             preparedStmt.clearParameters();
             preparedStmt.close();
         } catch (SQLException e) {
             e.printStackTrace();
-            PlotSquared.debug("&cERROR 2:  | " + objList.get(0).getClass().getCanonicalName());
+            logger.error("[P2] 2: | {}", objList.get(0).getClass().getCanonicalName());
-            PlotSquared.debug("&6[WARN] Could not bulk save!");
+            logger.error("[P2] Could not bulk save!");
             try (PreparedStatement preparedStmt = this.connection
                 .prepareStatement(mod.getCreateSQL())) {
                 for (T obj : objList) {
                     mod.setSQL(preparedStmt, obj);
                     preparedStmt.addBatch();
                 }
-                PlotSquared.debug("&aBatch 3");
                 preparedStmt.executeBatch();
             } catch (SQLException e3) {
+                logger.error("[P2] Failed to save all", e);
                 e3.printStackTrace();
-                PlotSquared.debug("&c[ERROR] Failed to save all!");
             }
         }
         if (whenDone != null) {
@@ -954,9 +949,7 @@ public class SQLManager implements AbstractDB {
                     try {
                         preparedStatement.executeBatch();
                     } catch (final Exception e) {
-                        PlotSquared.log(Captions.PREFIX.getTranslated()
+                        logger.error("[P2] Failed to store settings for plot with entry ID: {}", legacySettings.id);
-                            + "Failed to store settings values for plot with entry ID: "
-                            + legacySettings.id);
                         e.printStackTrace();
                         continue;
                     }
@@ -968,18 +961,13 @@ public class SQLManager implements AbstractDB {
                 try {
                     preparedStatement.executeBatch();
                 } catch (final Exception e) {
-                    PlotSquared
+                    logger.error("[P2] Failed to store settings", e);
-                        .log(Captions.PREFIX.getTranslated() + "Failed to store settings values");
-                    e.printStackTrace();
                 }
             }
         } catch (final Exception e) {
-            PlotSquared.log(Captions.PREFIX.getTranslated() + "Failed to store settings values:");
+            logger.error("[P2] Failed to store settings", e);
-            e.printStackTrace();
         }
-        PlotSquared.log(
+        logger.info("[P2] Finished converting settihgs ({} plots processed)", myList.size());
-            Captions.PREFIX.getTranslated() + "Finished converting settings (" + myList.size()
-                + " plots processed)");
         whenDone.run();
     }
 
@@ -1158,7 +1146,6 @@ public class SQLManager implements AbstractDB {
             return;
         }
         boolean addConstraint = create == tables.length;
-        PlotSquared.debug("Creating tables");
         try (Statement stmt = this.connection.createStatement()) {
             if (this.mySQL) {
                 stmt.addBatch("CREATE TABLE IF NOT EXISTS `" + this.prefix + "plot` ("
@@ -1398,9 +1385,6 @@ public class SQLManager implements AbstractDB {
      * @param plot
      */
     @Override public void delete(final Plot plot) {
-        PlotSquared.debug(
-            "Deleting plot... Id: " + plot.getId() + " World: " + plot.getWorldName() + " Owner: "
-                + plot.getOwnerAbs() + " Index: " + plot.temp);
         deleteSettings(plot);
         deleteDenied(plot);
         deleteHelpers(plot);
@@ -1426,9 +1410,6 @@ public class SQLManager implements AbstractDB {
      * @param plot
      */
     @Override public void createPlotSettings(final int id, Plot plot) {
-        PlotSquared.debug(
-            "Creating plot... Id: " + plot.getId() + " World: " + plot.getWorldName() + " Owner: "
-                + plot.getOwnerAbs() + " Index: " + id);
         addPlotTask(plot, new UniqueStatement("createPlotSettings") {
             @Override public void set(PreparedStatement statement) throws SQLException {
                 statement.setInt(1, id);
@@ -1586,7 +1567,6 @@ public class SQLManager implements AbstractDB {
                             "SELECT plot_plot_id, user_uuid, COUNT(*) FROM " + this.prefix + table
                                 + " GROUP BY plot_plot_id, user_uuid HAVING COUNT(*) > 1");
                         if (result.next()) {
-                            PlotSquared.debug("BACKING UP: " + this.prefix + table);
                             result.close();
                             statement.executeUpdate(
                                 "CREATE TABLE " + this.prefix + table + "_tmp AS SELECT * FROM "
@@ -1596,7 +1576,6 @@ public class SQLManager implements AbstractDB {
                                 "CREATE TABLE " + this.prefix + table + " AS SELECT * FROM "
                                     + this.prefix + table + "_tmp");
                             statement.executeUpdate("DROP TABLE " + this.prefix + table + "_tmp");
-                            PlotSquared.debug("RESTORING: " + this.prefix + table);
                         }
                     }
                 } catch (SQLException e2) {
@@ -1660,40 +1639,20 @@ public class SQLManager implements AbstractDB {
                             try {
                                 String flag_str =
                                     split[1].replaceAll("¯", ":").replaceAll("\u00B4", ",");
-                                /*PlotFlag<?, ?> flag = GlobalFlagContainer.getInstance().getFlagFromString(split[0]);
-                                if (flag == null) {
-                                    PlotSquared.log(Captions.PREFIX.getTranslated() + "Flag not found and therefore ignored: " + split[0]);
-                                    continue;
-                                }*/
                                 flagMap.get(id).put(split[0], flag_str);
                             } catch (Exception e) {
                                 e.printStackTrace();
                             }
-                        } /*else {
-                            element = element.replaceAll("\u00AF", ":").replaceAll("\u00B4", ",");
-                            if (StringMan
-                                .isAlpha(element.replaceAll("_", "").replaceAll("-", ""))) {
-                                PlotFlag<?, ?> flag = GlobalFlagContainer.getInstance().getFlagFromString(element);
-                                if (flag == null) {
-                                    PlotSquared.log(Captions.PREFIX.getTranslated() + "Flag not found and therefore ignored: " + element);
                         }
-                            } else {
-                                PlotSquared.log(Captions.PREFIX.getTranslated() + "INVALID FLAG: " + element);
-                            }
-                        }*/
                     }
                 }
             }
         } catch (final Exception e) {
-            PlotSquared.log(Captions.PREFIX.getTranslated() + "Failed to load old flag values:");
+            logger.error("[P2] Failed to load old flag values", e);
-            e.printStackTrace();
             return false;
         }
-        PlotSquared.log(Captions.PREFIX.getTranslated() + "Loaded " + flagMap.size()
+        logger.info("[P2] Loaded {} plot flag collections...", flagMap.size());
-            + " plot flag collections...");
+        logger.info("[P2] Attempting to store these flags in the new table...");
-        PlotSquared.log(Captions.PREFIX.getTranslated()
-            + "Attempting to store these flags in the new table...");
-        //
         try (final PreparedStatement preparedStatement = this.connection.prepareStatement(
             "INSERT INTO `" + SQLManager.this.prefix
                 + "plot_flags`(`plot_id`, `flag`, `value`) VALUES(?, ?, ?)")) {
@@ -1721,9 +1680,7 @@ public class SQLManager implements AbstractDB {
                 try {
                     preparedStatement.executeBatch();
                 } catch (final Exception e) {
-                    PlotSquared.log(Captions.PREFIX.getTranslated()
+                    logger.error("[P2] Failed to store flag values for plot with entry ID: {}", plotFlagEntry.getKey());
-                        + "Failed to store flag values for plot with entry ID: " + plotFlagEntry
-                        .getKey());
                     e.printStackTrace();
                     continue;
                 }
@@ -1731,19 +1688,17 @@ public class SQLManager implements AbstractDB {
                 if (System.currentTimeMillis() - timeStarted >= 1000L || plotsProcessed >= flagMap
                     .size()) {
                     timeStarted = System.currentTimeMillis();
-                    PlotSquared.log(
+                    logger.info("[P2] ... Flag conversion in progress. {}% done",
-                        Captions.PREFIX.getTranslated() + "... Flag conversion in progress. "
+                        String.format("%.1f", ((float) flagsProcessed / totalFlags) * 100));
-                            + String.format("%.1f", ((float) flagsProcessed / totalFlags) * 100)
-                            + "% Done");
                 }
 
-                PlotSquared.debug(Captions.PREFIX.getTranslated()
+                if (Settings.DEBUG) {
-                    + "- Finished converting flags for plot with entry ID: " + plotFlagEntry
+                    logger.info("[P2] - Finished converting flags for plot with entry ID: {}",
-                    .getKey());
+                        plotFlagEntry.getKey());
+                }
             }
         } catch (final Exception e) {
-            PlotSquared.log(Captions.PREFIX.getTranslated() + "Failed to store flag values:");
+            logger.error("[P2] Failed to store flag values", e);
-            e.printStackTrace();
             return false;
         }
         return true;
@@ -1834,9 +1789,8 @@ public class SQLManager implements AbstractDB {
                                 time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(parsable)
                                     .getTime();
                             } catch (ParseException e) {
-                                PlotSquared.debug(
+                                logger.error("[P2] Could not parse date for plot: #{}({};{}) ({})",
-                                    "Could not parse date for plot: #" + id + "(" + areaID + ";"
+                                    id, areaID, plot_id, parsable);
-                                        + plot_id + ") (" + parsable + ")");
                                 time = System.currentTimeMillis() + id;
                             }
                         }
@@ -1849,10 +1803,9 @@ public class SQLManager implements AbstractDB {
                             if (last != null) {
                                 if (Settings.Enabled_Components.DATABASE_PURGER) {
                                     toDelete.add(last.temp);
-                                } else {
+                                } else if (Settings.DEBUG) {
-                                    PlotSquared.debug(
+                                    logger.info("[P2] Plot #{}({}) in `{}plot` is a duplicate."
-                                        "&cPLOT #" + id + "(" + last + ") in `" + this.prefix
+                                        + " Delete this plot or set `database-purger: true` in the settings.yml", id, last, this.prefix);
-                                            + "plot` is a duplicate. Delete this plot or set `database-purger: true` in the settings.yml.");
                                 }
                             }
                         } else {
@@ -1882,10 +1835,9 @@ public class SQLManager implements AbstractDB {
                                 plot.getSettings().getRatings().put(user, r.getInt("rating"));
                             } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                                 toDelete.add(id);
-                            } else {
+                            } else if (Settings.DEBUG) {
-                                PlotSquared.debug("&cENTRY #" + id + "(" + plot
+                                logger.info("[P2] Entry #{}({}) in `plot_rating` does not exist."
-                                    + ") in `plot_rating` does not exist. Create this plot or set `database-purger: true` in the "
+                                    + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
-                                    + "settings.yml.");
                             }
                         }
                         deleteRows(toDelete, this.prefix + "plot_rating", "plot_plot_id");
@@ -1911,10 +1863,9 @@ public class SQLManager implements AbstractDB {
                             plot.getTrusted().add(user);
                         } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                             toDelete.add(id);
-                        } else {
+                        } else if (Settings.DEBUG) {
-                            PlotSquared.debug("&cENTRY #" + id + "(" + plot
+                            logger.info("[P2] Entry #{}({}) in `plot_helpers` does not exist."
-                                + ") in `plot_helpers` does not exist. Create this plot or set `database-purger: true` in the settings"
+                                + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
-                                + ".yml.");
                         }
                     }
                     deleteRows(toDelete, this.prefix + "plot_helpers", "plot_plot_id");
@@ -1939,10 +1890,9 @@ public class SQLManager implements AbstractDB {
                             plot.getMembers().add(user);
                         } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                             toDelete.add(id);
-                        } else {
+                        } else if (Settings.DEBUG) {
-                            PlotSquared.debug("&cENTRY #" + id + "(" + plot
+                            logger.info("[P2] Entry #{}({}) in `plot_trusted` does not exist."
-                                + ") in `plot_trusted` does not exist. Create this plot or set `database-purger: true` in the settings"
+                                + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
-                                + ".yml.");
                         }
                     }
                     deleteRows(toDelete, this.prefix + "plot_trusted", "plot_plot_id");
@@ -1967,9 +1917,9 @@ public class SQLManager implements AbstractDB {
                             plot.getDenied().add(user);
                         } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                             toDelete.add(id);
-                        } else {
+                        } else if (Settings.DEBUG) {
-                            PlotSquared.debug("&cENTRY " + id
+                            logger.info("[P2] Entry #{}({}) in `plot_denied` does not exist."
-                                + " in `plot_denied` does not exist. Create this plot or set `database-purger: true` in the settings.yml.");
+                                + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
                         }
                     }
                     deleteRows(toDelete, this.prefix + "plot_denied", "plot_plot_id");
@@ -1990,19 +1940,15 @@ public class SQLManager implements AbstractDB {
                             final PlotFlag<?, ?> plotFlag =
                                 GlobalFlagContainer.getInstance().getFlagFromString(flag);
                             if (plotFlag == null) {
-                                PlotSquared.debug("Adding unknown flag to plot with ID " + id);
                                 plot.getFlagContainer().addUnknownFlag(flag, value);
                             } else {
                                 try {
                                     plot.getFlagContainer().addFlag(plotFlag.parse(value));
                                 } catch (final FlagParseException e) {
                                     e.printStackTrace();
-                                    PlotSquared
+                                    logger.error("[P2] Plot with ID {} has an invalid value:", id);
-                                        .debug("Plot with ID " + id + " has an invalid value:");
+                                    logger.error("[P2] Failed to parse flag '{}', value '{}': {}",
-                                    PlotSquared.debug(Captions.FLAG_PARSE_ERROR.getTranslated()
+                                        plotFlag.getName(), e.getValue(), e.getErrorMessage());
-                                        .replace("%flag_name%", plotFlag.getName())
-                                        .replace("%flag_value%", e.getValue())
-                                        .replace("%error%", e.getErrorMessage()));
                                     if (!invalidFlags.containsKey(plot)) {
                                         invalidFlags.put(plot, new ArrayList<>());
                                     }
@@ -2011,9 +1957,9 @@ public class SQLManager implements AbstractDB {
                             }
                         } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                             toDelete.add(id);
-                        } else {
+                        } else if (Settings.DEBUG) {
-                            PlotSquared.debug("&cPlot " + id
+                            logger.info("[P2] Entry #{}({}) in `plot_flags` does not exist."
-                                + " in `plot_flags` does not exist. Create this plot or set `database-purger: true` in the settings.yml.");
+                                + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
                         }
                     }
                     BlockTypeListFlag.skipCategoryVerification =
@@ -2022,9 +1968,11 @@ public class SQLManager implements AbstractDB {
                         for (final Map.Entry<Plot, Collection<PlotFlag<?, ?>>> plotFlagEntry : invalidFlags
                             .entrySet()) {
                             for (final PlotFlag<?, ?> flag : plotFlagEntry.getValue()) {
-                                PlotSquared.debug("&cPlot \"" + plotFlagEntry.getKey() + "\""
+                                if (Settings.DEBUG) {
-                                    + " had an invalid flag (" + flag.getName()
+                                    logger.info(
-                                    + "). A fix has been attempted.");
+                                        "Plot {} has an invalid flag ({}). A fix has been attempted",
+                                        plotFlagEntry.getKey(), flag.getName());
+                                }
                                 removeFlag(plotFlagEntry.getKey(), flag);
                             }
                         }
@@ -2065,10 +2013,9 @@ public class SQLManager implements AbstractDB {
                             plot.getSettings().setMerged(merged);
                         } else if (Settings.Enabled_Components.DATABASE_PURGER) {
                             toDelete.add(id);
-                        } else {
+                        } else if (Settings.DEBUG) {
-                            PlotSquared.debug("&cENTRY #" + id + "(" + plot
+                            logger.info("[P2] Entry #{}({}) in `plot_settings` does not exist."
-                                + ") in `plot_settings` does not exist. Create this plot or set `database-purger: true` in the settings"
+                                + " Create this plot or set `database-purger: true` in settings.yml", id, plot);
-                                + ".yml.");
                         }
                     }
                     deleteRows(toDelete, this.prefix + "plot_settings", "plot_plot_id");
@@ -2084,16 +2031,16 @@ public class SQLManager implements AbstractDB {
             for (Entry<String, AtomicInteger> entry : noExist.entrySet()) {
                 String worldName = entry.getKey();
                 invalidPlot = true;
-                PlotSquared.debug("&c[WARNING] Found " + entry.getValue().intValue()
+                if (Settings.DEBUG) {
-                    + " plots in DB for non existent world; '" + worldName + "'.");
+                    logger.info("[P2] Warning! Found {} plots in DB for non existent world: '{}'",
+                        entry.getValue().intValue(), worldName);
                 }
-            if (invalidPlot) {
+            }
-                PlotSquared.debug(
+            if (invalidPlot && Settings.DEBUG) {
-                    "&c[WARNING] - Please create the world/s or remove the plots using the purge command");
+                logger.info("[P2] Warning! Please create the world(s) or remove the plots using the purge command");
             }
         } catch (SQLException e) {
-            PlotSquared.debug("&7[WARN] Failed to load plots.");
+            logger.error("[P2] Failed to load plots", e);
-            e.printStackTrace();
         }
         return newPlots;
     }
@@ -2134,9 +2081,7 @@ public class SQLManager implements AbstractDB {
                 preparedStatement.setInt(3, id2);
                 preparedStatement.execute();
             } catch (final Exception e) {
-                PlotSquared.log(
+                logger.error("[P2] Failed to persist wap of {} and {}", plot1, plot2);
-                    Captions.PREFIX.getTranslated() + "Failed to persist swap of " + plot1 + " and "
-                        + plot2 + "!");
                 e.printStackTrace();
                 future.complete(false);
                 return;
@@ -2234,8 +2179,6 @@ public class SQLManager implements AbstractDB {
                         int count = 0;
                         int last = -1;
                         for (int j = 0; j <= amount; j++) {
-                            int purging = Math.max(j * packet, size);
-                            PlotSquared.debug("Purging " + purging + " / " + size);
                             List<Integer> subList =
                                 uniqueIdsList.subList(j * packet, Math.min(size, (j + 1) * packet));
                             if (subList.isEmpty()) {
@@ -2281,12 +2224,13 @@ public class SQLManager implements AbstractDB {
                             commit();
                         }
                     } catch (SQLException e) {
-                        e.printStackTrace();
+                        logger.error("[P2] Failed to purge plots", e);
-                        PlotSquared.debug("&c[ERROR] FAILED TO PURGE PLOTS!");
                         return;
                     }
                 }
-                PlotSquared.debug("&6[INFO] SUCCESSFULLY PURGED " + uniqueIds.size() + " PLOTS!");
+                if (Settings.DEBUG) {
+                    logger.info("[P2] Successfully purged {} plots", uniqueIds.size());
+                }
             }
         });
     }
@@ -2309,8 +2253,8 @@ public class SQLManager implements AbstractDB {
                 }
                 purgeIds(ids);
             } catch (SQLException e) {
+                logger.error("[P2] Failed to purge area '{}'", area);
                 e.printStackTrace();
-                PlotSquared.debug("&c[ERROR] FAILED TO PURGE AREA '" + area + "'!");
             }
             for (Iterator<PlotId> iterator = plots.iterator(); iterator.hasNext(); ) {
                 PlotId plotId = iterator.next();
@@ -2566,8 +2510,7 @@ public class SQLManager implements AbstractDB {
                 }
             }
         } catch (SQLException e) {
-            PlotSquared
+            logger.error("[P2] Failed to fetch rating for plot {}", plot.getId().toString());
-                .debug("&7[WARN] Failed to fetch rating for plot " + plot.getId().toString());
             e.printStackTrace();
         }
         return map;
@@ -2786,9 +2729,9 @@ public class SQLManager implements AbstractDB {
                     cluster = clusters.get(id);
                     if (cluster != null) {
                         cluster.helpers.add(user);
-                    } else {
+                    } else if (Settings.DEBUG) {
-                        PlotSquared.debug("&cCluster #" + id + "(" + cluster
+                        logger.warn("[P2] Cluster #{}({}) in cluster_helpers does not exist."
-                            + ") in cluster_helpers does not exist. Please create the cluster or remove this entry.");
+                            + " Please create the cluster or remove this entry", id, cluster);
                     }
                 }
                 // Getting invited
@@ -2805,9 +2748,9 @@ public class SQLManager implements AbstractDB {
                     cluster = clusters.get(id);
                     if (cluster != null) {
                         cluster.invited.add(user);
-                    } else {
+                    } else if (Settings.DEBUG) {
-                        PlotSquared.debug("&cCluster #" + id + "(" + cluster
+                        logger.warn("[P2] Cluster #{}({}) in cluster_helpers does not exist."
-                            + ") in cluster_invited does not exist. Please create the cluster or remove this entry.");
+                            + " Please create the cluster or remove this entry", id, cluster);
                     }
                 }
                 resultSet =
@@ -2840,9 +2783,9 @@ public class SQLManager implements AbstractDB {
                             merged[3 - i] = (m & 1 << i) != 0;
                         }
                         cluster.settings.setMerged(merged);
-                    } else {
+                    } else if (Settings.DEBUG) {
-                        PlotSquared.debug("&cCluster #" + id + "(" + cluster
+                        logger.warn("[P2] Cluster #{}({}) in cluster_helpers does not exist."
-                            + ") in cluster_settings does not exist. Please create the cluster or remove this entry.");
+                            + " Please create the cluster or remove this entry", id, cluster);
                     }
                 }
                 resultSet.close();
@@ -2851,16 +2794,13 @@ public class SQLManager implements AbstractDB {
             for (Entry<String, Integer> entry : noExist.entrySet()) {
                 String a = entry.getKey();
                 invalidPlot = true;
-                PlotSquared.debug("&c[WARNING] Found " + noExist.get(a)
+                logger.warn("[P2] Warning! Found {} clusters in DB for non existent area; '{}'", noExist.get(a), a);
-                    + " clusters in DB for non existent area; '" + a + "'.");
             }
             if (invalidPlot) {
-                PlotSquared.debug(
+                logger.warn("[P2] Warning! Please create the world(s) or remove the clusters using the purge command");
-                    "&c[WARNING] - Please create the world/s or remove the clusters using the purge command");
             }
         } catch (SQLException e) {
-            PlotSquared.debug("&7[WARN] Failed to load clusters.");
+            logger.error("[P2] Failed to load clusters", e);
-            e.printStackTrace();
         }
         return newClusters;
     }
@@ -3052,8 +2992,7 @@ public class SQLManager implements AbstractDB {
         if (!isValid()) {
             reconnect();
         }
-        PlotSquared.debug(
+        logger.info("[P2] All DB transactions during this session are being validated (This may take a while if corrections need to be made)");
-            "$1All DB transactions during this session are being validated (This may take a while if corrections need to be made)");
         commit();
         while (true) {
             if (!sendBatch()) {
@@ -3074,31 +3013,27 @@ public class SQLManager implements AbstractDB {
                 continue;
             }
             if (plot.getArea() == null) {
-                PlotSquared.debug("CRITICAL ERROR IN VALIDATION TASK!");
+                logger.error("[P2] CRITICAL ERROR IN VALIDATION TASK!");
-                PlotSquared.debug("PLOT AREA CANNOT BE NULL! SKIPPING PLOT!");
+                logger.error("[P2] PLOT AREA CANNOT BE NULL! SKIPPING PLOT!");
                 continue;
             }
             if (database == null) {
-                PlotSquared.debug("CRITICAL ERROR IN VALIDATION TASK!");
+                logger.error("[P2] CRITICAL ERROR IN VALIDATION TASK!");
-                PlotSquared.debug("DATABASE VARIABLE CANNOT BE NULL! NOW ENDING VALIDATION!!");
+                logger.error("[P2] DATABASE VARIABLE CANNOT BE NULL! NOW ENDING VALIDATION!");
                 break;
             }
             HashMap<PlotId, Plot> worldPlots = database.get(plot.getArea().toString());
             if (worldPlots == null) {
-                PlotSquared.debug("&8 - &7Creating plot (1): " + plot);
                 toCreate.add(plot);
                 continue;
             }
             Plot dataPlot = worldPlots.remove(plot.getId());
             if (dataPlot == null) {
-                PlotSquared.debug("&8 - &7Creating plot (2): " + plot);
                 toCreate.add(plot);
                 continue;
             }
             // owner
             if (!plot.getOwnerAbs().equals(dataPlot.getOwnerAbs())) {
-                PlotSquared.debug("&8 - &7Setting owner: " + plot + " -> " + MainUtil
-                    .getName(plot.getOwnerAbs()));
                 setOwner(plot, plot.getOwnerAbs());
             }
             // trusted
@@ -3107,9 +3042,6 @@ public class SQLManager implements AbstractDB {
                 HashSet<UUID> toRemove = (HashSet<UUID>) dataPlot.getTrusted().clone();
                 toRemove.removeAll(plot.getTrusted());
                 toAdd.removeAll(dataPlot.getTrusted());
-                PlotSquared.debug(
-                    "&8 - &7Correcting " + (toAdd.size() + toRemove.size()) + " trusted for: "
-                        + plot);
                 if (!toRemove.isEmpty()) {
                     for (UUID uuid : toRemove) {
                         removeTrusted(plot, uuid);
@@ -3126,9 +3058,6 @@ public class SQLManager implements AbstractDB {
                 HashSet<UUID> toRemove = (HashSet<UUID>) dataPlot.getMembers().clone();
                 toRemove.removeAll(plot.getMembers());
                 toAdd.removeAll(dataPlot.getMembers());
-                PlotSquared.debug(
-                    "&8 - &7Correcting " + (toAdd.size() + toRemove.size()) + " members for: "
-                        + plot);
                 if (!toRemove.isEmpty()) {
                     for (UUID uuid : toRemove) {
                         removeMember(plot, uuid);
@@ -3145,9 +3074,6 @@ public class SQLManager implements AbstractDB {
                 HashSet<UUID> toRemove = (HashSet<UUID>) dataPlot.getDenied().clone();
                 toRemove.removeAll(plot.getDenied());
                 toAdd.removeAll(dataPlot.getDenied());
-                PlotSquared.debug(
-                    "&8 - &7Correcting " + (toAdd.size() + toRemove.size()) + " denied for: "
-                        + plot);
                 if (!toRemove.isEmpty()) {
                     for (UUID uuid : toRemove) {
                         removeDenied(plot, uuid);
@@ -3162,7 +3088,6 @@ public class SQLManager implements AbstractDB {
             boolean[] pm = plot.getMerged();
             boolean[] dm = dataPlot.getMerged();
             if (pm[0] != dm[0] || pm[1] != dm[1]) {
-                PlotSquared.debug(" - Correcting merge for: " + plot);
                 setMerged(dataPlot, plot.getMerged());
             }
             Set<PlotFlag<?, ?>> pf = plot.getFlags();
@@ -3170,7 +3095,6 @@ public class SQLManager implements AbstractDB {
             if (!pf.isEmpty() && !df.isEmpty()) {
                 if (pf.size() != df.size() || !StringMan
                     .isEqual(StringMan.joinOrdered(pf, ","), StringMan.joinOrdered(df, ","))) {
-                    PlotSquared.debug(" - Correcting flags for: " + plot);
                     // setFlags(plot, pf);
                     // TODO: Re-implement
                 }
@@ -3181,8 +3105,7 @@ public class SQLManager implements AbstractDB {
             HashMap<PlotId, Plot> map = entry.getValue();
             if (!map.isEmpty()) {
                 for (Entry<PlotId, Plot> entry2 : map.entrySet()) {
-                    PlotSquared.debug("$1Plot was deleted: " + entry2.getValue().toString()
+                    // TODO implement this when sure safe"
-                        + "// TODO implement this when sure safe");
                 }
             }
         }

Core/src/main/java/com/plotsquared/core/database/SQLite.java

@@ -26,6 +26,8 @@
 package com.plotsquared.core.database;
 
 import com.plotsquared.core.PlotSquared;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
@@ -40,6 +42,8 @@ import java.sql.Statement;
  */
 public class SQLite extends Database {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SQLite.class.getSimpleName());
+
     private final String dbLocation;
     private Connection connection;
 
@@ -64,7 +68,7 @@ public class SQLite extends Database {
             try {
                 file.createNewFile();
             } catch (IOException ignored) {
-                PlotSquared.debug("&cUnable to create database!");
+                logger.error("[P2] Unable to create database");
             }
         }
         Class.forName("org.sqlite.JDBC");

Core/src/main/java/com/plotsquared/core/generator/HybridPlotWorld.java

@@ -27,7 +27,6 @@ package com.plotsquared.core.generator;
 
 import com.google.inject.assistedinject.Assisted;
 import com.plotsquared.core.PlotSquared;
-import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.configuration.file.YamlConfiguration;
@@ -59,6 +58,8 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import lombok.Getter;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.inject.Inject;
 import java.io.File;
@@ -68,7 +69,8 @@ import java.util.Locale;
 
 public class HybridPlotWorld extends ClassicPlotWorld {
 
-    private static AffineTransform transform = new AffineTransform().rotateY(90);
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + HybridPlotWorld.class.getSimpleName());
+    private static final AffineTransform transform = new AffineTransform().rotateY(90);
     public boolean ROAD_SCHEMATIC_ENABLED;
     public boolean PLOT_SCHEMATIC = false;
     public int PLOT_SCHEMATIC_HEIGHT = -1;
@@ -179,13 +181,11 @@ public class HybridPlotWorld extends ClassicPlotWorld {
             setupSchematics();
         } catch (Exception event) {
             event.printStackTrace();
-            PlotSquared.debug("&c - road schematics are disabled for this world.");
         }
 
         // Dump world settings
         if (Settings.DEBUG) {
-            PlotSquared.debug(String.format("- Dumping settings for ClassicPlotWorld with name %s",
+            logger.info("[P2] - Dumping settings for ClassicPlotWorld with name {}", this.getWorldName());
-                this.getWorldName()));
             final Field[] fields = this.getClass().getFields();
             for (final Field field : fields) {
                 final String name = field.getName().toLowerCase(Locale.ENGLISH);
@@ -201,7 +201,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
                 } catch (final IllegalAccessException e) {
                     value = String.format("Failed to parse: %s", e.getMessage());
                 }
-                PlotSquared.debug(String.format("-- %s = %s", name, value));
+                logger.info("[P2] -- {} = {}", name, value);
             }
         }
     }
@@ -301,10 +301,14 @@ public class HybridPlotWorld extends ClassicPlotWorld {
                 }
             }
 
-            PlotSquared.debug(Captions.PREFIX + "&3 - plot schematic: &7"  + schematic3File.getPath());
+            if (Settings.DEBUG) {
+                logger.info("[P2]  - plot schematic: {}", schematic3File.getPath());
+            }
         }
         if (schematic1 == null || schematic2 == null || this.ROAD_WIDTH == 0) {
-            PlotSquared.debug(Captions.PREFIX + "&3 - schematic: &7false");
+            if (Settings.DEBUG) {
+                logger.info("[P2]  - schematic: false");
+            }
             return;
         }
         this.ROAD_SCHEMATIC_ENABLED = true;
@@ -380,7 +384,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
         int pair = MathMan.pair(x, z);
         BaseBlock[] existing = this.G_SCH.computeIfAbsent(pair, k -> new BaseBlock[height]);
         if (y >= height) {
-            PlotSquared.log("Error adding overlay block. `y > height` ");
+            logger.error("[P2] Error adding overlay block. `y > height`");
             return;
         }
         existing[y] = id;

Core/src/main/java/com/plotsquared/core/generator/HybridUtils.java

@@ -63,6 +63,8 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockType;
 import com.sk89q.worldedit.world.block.BlockTypes;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.io.File;
@@ -79,6 +81,9 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 public class HybridUtils {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + HybridUtils.class.getSimpleName());
+
+    public static HybridUtils manager;
     public static Set<BlockVector2> regions;
     public static int height;
     public static Set<BlockVector2> chunks = new HashSet<>();
@@ -433,24 +438,25 @@ public class HybridUtils {
                         BlockVector2 chunk = iter.next();
                         iter.remove();
                         boolean regenedRoad = regenerateRoad(area, chunk, extend);
-                        if (!regenedRoad) {
+                        if (!regenedRoad && Settings.DEBUG) {
-                            PlotSquared.debug("Failed to regenerate roads.");
+                            logger.info("[P2] Failed to regenerate roads");
                         }
                         chunkManager.unloadChunk(area.getWorldName(), chunk, true);
                     }
-                    PlotSquared.debug("Cancelled road task");
+                    if (Settings.DEBUG) {
+                        logger.info("[P2] Cancelled road task");
+                    }
                     return;
                 }
                 count.incrementAndGet();
                 if (count.intValue() % 20 == 0) {
-                    PlotSquared.debug("PROGRESS: " + 100 * (2048 - chunks.size()) / 2048 + "%");
+                    logger.info("[P2] Progress: {}%", 100 * (2048 - chunks.size()) / 2048);
                 }
                 if (HybridUtils.regions.isEmpty() && chunks.isEmpty()) {
-                    PlotSquared.debug("Regenerating plot walls");
                     regeneratePlotWalls(area);
 
                     HybridUtils.UPDATE = false;
-                    PlotSquared.log("Finished road conversion");
+                    logger.info("[P2] Finished road conversion");
                     // CANCEL TASK
                 } else {
                     final Runnable task = this;
@@ -462,11 +468,11 @@ public class HybridUtils {
                                         HybridUtils.regions.iterator();
                                     BlockVector2 loc = iterator.next();
                                     iterator.remove();
-                                    PlotSquared.debug(
+                                    if (Settings.DEBUG) {
-                                        "Updating .mcr: " + loc.getX() + ", " + loc.getZ()
+                                        logger.info("[P2] Updating .mcr: {}, {} (approx 1024 chunks)",
-                                            + " (approx 1024 chunks)");
+                                            loc.getX(), loc.getZ());
-                                    PlotSquared
+                                        logger.info("[P2] - Remaining: {}", HybridUtils.regions.size());
-                                        .debug(" - Remaining: " + HybridUtils.regions.size());
+                                    }
                                     chunks.addAll(getChunks(loc));
                                     System.gc();
                                 }
@@ -482,8 +488,8 @@ public class HybridUtils {
                                             iterator.remove();
                                             boolean regenedRoads =
                                                 regenerateRoad(area, chunk, extend);
-                                            if (!regenedRoads) {
+                                            if (!regenedRoads && Settings.DEBUG) {
-                                                PlotSquared.debug("Failed to regenerate road.");
+                                                logger.info("[P2] Failed to regenerate road");
                                             }
                                         }
                                     }
@@ -494,9 +500,8 @@ public class HybridUtils {
                             Iterator<BlockVector2> iterator = HybridUtils.regions.iterator();
                             BlockVector2 loc = iterator.next();
                             iterator.remove();
-                            PlotSquared.debug(
+                            logger.error("[P2] Error! Could not update '{}/region/r.{}.{}.mca' (Corrupt chunk?)",
-                                "[ERROR] Could not update '" + area.getWorldName() + "/region/r."
+                                area.getWorldHash(), loc.getX(), loc.getZ());
-                                    + loc.getX() + "." + loc.getZ() + ".mca' (Corrupt chunk?)");
                             int sx = loc.getX() << 5;
                             int sz = loc.getZ() << 5;
                             for (int x = sx; x < sx + 32; x++) {
@@ -505,8 +510,6 @@ public class HybridUtils {
                                             true);
                                 }
                             }
-                            PlotSquared.debug(" - Potentially skipping 1024 chunks");
-                            PlotSquared.debug(" - TODO: recommend chunkster if corrupt");
                         }
                         blockQueue.addEmptyTask(() -> TaskManager.runTaskLater(task, 20));
                     });

Core/src/main/java/com/plotsquared/core/generator/SquarePlotManager.java

@@ -25,7 +25,6 @@
  */
 package com.plotsquared.core.generator;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.location.Direction;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.plot.Plot;
@@ -34,9 +33,10 @@ import com.plotsquared.core.plot.PlotId;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.RegionManager;
 import com.sk89q.worldedit.regions.CuboidRegion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
-import java.util.Arrays;
 import java.util.Iterator;
 import java.util.Set;
 
@@ -45,6 +45,8 @@ import java.util.Set;
  */
 public abstract class SquarePlotManager extends GridPlotManager {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SquarePlotManager.class.getSimpleName());
+
     private final SquarePlotWorld squarePlotWorld;
     private final RegionManager regionManager;
 
@@ -227,10 +229,8 @@ public abstract class SquarePlotManager extends GridPlotManager {
                     // northwest
                     return plot.getMerged(Direction.NORTHWEST) ? id : null;
             }
-            PlotSquared.debug("invalid location: " + Arrays.toString(merged));
         } catch (Exception ignored) {
-            PlotSquared.debug(
+            logger.error( "Invalid plot / road width in settings.yml for world: {}", squarePlotWorld
-                "Invalid plot / road width in settings.yml for world: " + squarePlotWorld
                 .getWorldName());
         }
         return null;

Core/src/main/java/com/plotsquared/core/generator/SquarePlotWorld.java

@@ -25,8 +25,8 @@
  */
 package com.plotsquared.core.generator;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.ConfigurationSection;
+import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.configuration.file.YamlConfiguration;
 import com.plotsquared.core.inject.annotations.WorldConfig;
 import com.plotsquared.core.plot.PlotId;
@@ -34,9 +34,13 @@ import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.util.EconHandler;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public abstract class SquarePlotWorld extends GridPlotWorld {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SquarePlotWorld.class.getSimpleName());
+
     public int PLOT_WIDTH = 42;
     public int ROAD_WIDTH = 7;
     public int ROAD_OFFSET_X = 0;
@@ -55,7 +59,10 @@ public abstract class SquarePlotWorld extends GridPlotWorld {
 
     @Override public void loadConfiguration(ConfigurationSection config) {
         if (!config.contains("plot.height")) {
-            PlotSquared.debug(" - &cConfiguration is null? (" + config.getCurrentPath() + ')');
+            if (Settings.DEBUG) {
+                logger.info("[P2]  - Configuration is null? ({})", config.getCurrentPath());
+            }
+
         }
         this.PLOT_WIDTH = config.getInt("plot.size");
         this.ROAD_WIDTH = config.getInt("road.width");

Core/src/main/java/com/plotsquared/core/listener/ProcessedWEExtent.java

@@ -25,8 +25,6 @@
  */
 package com.plotsquared.core.listener;
 
-import com.plotsquared.core.PlotSquared;
-import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.util.WEManager;
 import com.plotsquared.core.util.WorldUtil;
@@ -44,6 +42,8 @@ import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.lang.reflect.Field;
@@ -53,6 +53,8 @@ import java.util.Set;
 
 public class ProcessedWEExtent extends AbstractDelegateExtent {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ProcessedWEExtent.class.getSimpleName());
+
     private final Set<CuboidRegion> mask;
     private final String world;
     private final int max;
@@ -104,8 +106,6 @@ public class ProcessedWEExtent extends AbstractDelegateExtent {
                 return false;
             } else {
                 tileEntityCount[0]++;
-                PlotSquared.debug(Captions.PREFIX + "&cDetected unsafe WorldEdit: " + location.getX() + ","
-                    + location.getZ());
             }
         }
         if (WEManager.maskContains(this.mask, location.getX(), location.getY(), location.getZ())) {
@@ -136,9 +136,6 @@ public class ProcessedWEExtent extends AbstractDelegateExtent {
         this.Ecount++;
         if (this.Ecount > Settings.Chunk_Processor.MAX_ENTITIES) {
             this.Eblocked = true;
-            PlotSquared.debug(
-                Captions.PREFIX + "&cDetected unsafe WorldEdit: " + location.getBlockX() + ","
-                    + location.getBlockZ());
         }
         if (WEManager.maskContains(this.mask, location.getBlockX(), location.getBlockY(),
             location.getBlockZ())) {

Core/src/main/java/com/plotsquared/core/player/ConsolePlayer.java

@@ -44,11 +44,14 @@ import com.sk89q.worldedit.world.gamemode.GameModes;
 import com.sk89q.worldedit.world.item.ItemType;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.UUID;
 
 public class ConsolePlayer extends PlotPlayer<Actor> {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + ConsolePlayer.class.getSimpleName());
     private static ConsolePlayer instance;
 
     private final Actor actor;
@@ -127,7 +130,7 @@ public class ConsolePlayer extends PlotPlayer<Actor> {
     }
 
     @Override public void sendMessage(String message) {
-        PlotSquared.log(message);
+        logger.info(message);
     }
 
     @Override public void teleport(Location location, TeleportCause cause) {

Core/src/main/java/com/plotsquared/core/player/PlotPlayer.java

@@ -56,6 +56,8 @@ import com.sk89q.worldedit.world.gamemode.GameMode;
 import com.sk89q.worldedit.world.item.ItemType;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.nio.ByteBuffer;
 import java.util.Collection;
@@ -74,6 +76,8 @@ import java.util.concurrent.atomic.AtomicInteger;
  */
 public abstract class PlotPlayer<P> implements CommandCaller, OfflinePlotPlayer {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotPlayer.class.getSimpleName());
+
     public static final String META_LAST_PLOT = "lastplot";
     public static final String META_LOCATION = "location";
 
@@ -591,9 +595,9 @@ public abstract class PlotPlayer<P> implements CommandCaller, OfflinePlotPlayer
         if (Settings.Enabled_Components.BAN_DELETER && isBanned()) {
             for (Plot owned : getPlots()) {
                 owned.deletePlot(null);
-                PlotSquared.debug(String
+                if (Settings.DEBUG) {
-                    .format("&cPlot &6%s &cwas deleted + cleared due to &6%s&c getting banned",
+                    logger.info("[P2] Plot {} was deleted + cleared due to {} getting banned", owned.getId(), getName());
-                        plot.getId(), getName()));
+                }
             }
         }
         if (ExpireManager.IMP != null) {

Core/src/main/java/com/plotsquared/core/plot/Plot.java

@@ -77,6 +77,8 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 import lombok.Getter;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.awt.geom.Area;
 import java.awt.geom.PathIterator;
@@ -121,6 +123,8 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
  */
 public class Plot {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Plot.class.getSimpleName());
+
     public static final int MAX_HEIGHT = 256;
 
     private static Set<Plot> connected_cache;
@@ -1735,9 +1739,6 @@ public class Plot {
 
     public boolean claim(@Nonnull final PlotPlayer player, boolean teleport, String schematic) {
         if (!canClaim(player)) {
-            PlotSquared.debug(Captions.PREFIX.getTranslated() + String
-                .format("Player %s attempted to claim plot %s, but was not allowed",
-                    player.getName(), this.getId().toCommaSeparatedString()));
             return false;
         }
         return claim(player, teleport, schematic, true);
@@ -1748,9 +1749,8 @@ public class Plot {
 
         if (updateDB) {
             if (!create(player.getUUID(), true)) {
-                PlotSquared.debug(Captions.PREFIX.getTranslated() + String.format(
+                logger.error("[P2] Player {} attempted to claim plot {}, but the database failed to update",
-                    "Player %s attempted to claim plot %s, but the database failed to update",
+                    player.getName(), this.getId().toCommaSeparatedString());
-                    player.getName(), this.getId().toCommaSeparatedString()));
                 return false;
             }
         } else {
@@ -1838,9 +1838,8 @@ public class Plot {
             });
             return true;
         }
-        PlotSquared.get().getLogger().log(Captions.PREFIX.getTranslated() + String
+        logger.info("[P2] Failed to add plot {} to plot area {}",
-            .format("Failed to add plot %s to plot area %s", this.getId().toCommaSeparatedString(),
+            this.getId().toCommaSeparatedString(), this.area.toString());
-                this.area.toString()));
         return false;
     }
 
@@ -1934,12 +1933,10 @@ public class Plot {
      */
     public boolean moveData(Plot plot, Runnable whenDone) {
         if (!this.hasOwner()) {
-            PlotSquared.debug(plot + " is unowned (single)");
             TaskManager.runTask(whenDone);
             return false;
         }
         if (plot.hasOwner()) {
-            PlotSquared.debug(plot + " is unowned (multi)");
             TaskManager.runTask(whenDone);
             return false;
         }
@@ -2645,7 +2642,6 @@ public class Plot {
             tmp = this.area.getPlotAbs(this.id.getRelative(Direction.NORTH));
             if (!tmp.getMerged(Direction.SOUTH)) {
                 // invalid merge
-                PlotSquared.debug("Fixing invalid merge: " + this);
                 if (tmp.isOwnerAbs(this.getOwnerAbs())) {
                     tmp.getSettings().setMerged(Direction.SOUTH, true);
                     DBFunc.setMerged(tmp, tmp.getSettings().getMerged());
@@ -2662,7 +2658,6 @@ public class Plot {
             assert tmp != null;
             if (!tmp.getMerged(Direction.WEST)) {
                 // invalid merge
-                PlotSquared.debug("Fixing invalid merge: " + this);
                 if (tmp.isOwnerAbs(this.getOwnerAbs())) {
                     tmp.getSettings().setMerged(Direction.WEST, true);
                     DBFunc.setMerged(tmp, tmp.getSettings().getMerged());
@@ -2679,7 +2674,6 @@ public class Plot {
             assert tmp != null;
             if (!tmp.getMerged(Direction.NORTH)) {
                 // invalid merge
-                PlotSquared.debug("Fixing invalid merge: " + this);
                 if (tmp.isOwnerAbs(this.getOwnerAbs())) {
                     tmp.getSettings().setMerged(Direction.NORTH, true);
                     DBFunc.setMerged(tmp, tmp.getSettings().getMerged());
@@ -2695,7 +2689,6 @@ public class Plot {
             tmp = this.area.getPlotAbs(this.id.getRelative(Direction.WEST));
             if (!tmp.getMerged(Direction.EAST)) {
                 // invalid merge
-                PlotSquared.debug("Fixing invalid merge: " + this);
                 if (tmp.isOwnerAbs(this.getOwnerAbs())) {
                     tmp.getSettings().setMerged(Direction.EAST, true);
                     DBFunc.setMerged(tmp, tmp.getSettings().getMerged());
@@ -2710,10 +2703,6 @@ public class Plot {
         Plot current;
         while ((current = frontier.poll()) != null) {
             if (!current.hasOwner() || current.settings == null) {
-                // Invalid plot
-                // merged onto unclaimed plot
-                PlotSquared.debug(
-                    "Ignoring invalid merged plot: " + current + " | " + current.getOwnerAbs());
                 continue;
             }
             tmpSet.add(current);

Core/src/main/java/com/plotsquared/core/plot/PlotArea.java

@@ -68,6 +68,8 @@ import lombok.Getter;
 import lombok.Setter;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -87,6 +89,8 @@ import java.util.function.Consumer;
  */
 public abstract class PlotArea {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotArea.class.getSimpleName());
+
     protected final ConcurrentHashMap<PlotId, Plot> plots = new ConcurrentHashMap<>();
     @Getter @Nonnull private final String worldName;
     @Getter private final String id;
@@ -381,7 +385,6 @@ public abstract class PlotArea {
             }
         }
 
-        PlotSquared.log(Captions.PREFIX + "&3 - default flags: &7" + flagBuilder.toString());
         this.spawnEggs = config.getBoolean("event.spawn.egg");
         this.spawnCustom = config.getBoolean("event.spawn.custom");
         this.spawnBreeding = config.getBoolean("event.spawn.breeding");
@@ -417,7 +420,8 @@ public abstract class PlotArea {
                 prefix = ", ";
             }
         }
-        PlotSquared.log(Captions.PREFIX + "&3 - road flags: &7" + roadFlagBuilder.toString());
+
+        logger.info("[P2] - road flags: {}", roadFlagBuilder.toString());
 
         loadConfiguration(config);
     }
@@ -1113,10 +1117,12 @@ public abstract class PlotArea {
                 try {
                     flags.add(flagInstance.parse(split[1]));
                 } catch (final FlagParseException e) {
-                    PlotSquared.log(Captions.PREFIX.getTranslated() + String.format(
+                    logger.warn("[P2] Failed to parse default flag with key '{}' and value '{}'. "
-                        "§cFailed to parse default flag with key §6'%s'§c and value: §6'%s'§c."
+                                 + "Reason: {}. This flag will not be added as a default flag.",
-                            + " Reason: %s. This flag will not be added as a default flag.",
+                                 e.getFlag().getName(),
-                        e.getFlag().getName(), e.getValue(), e.getErrorMessage()));
+                                 e.getValue(),
+                                 e.getErrorMessage());
+                    e.printStackTrace();
                 }
             }
         }

Core/src/main/java/com/plotsquared/core/plot/PlotInventory.java

@@ -25,14 +25,17 @@
  */
 package com.plotsquared.core.plot;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.util.InventoryUtil;
 
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class PlotInventory {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotInventory.class.getSimpleName());
+
     private static final String META_KEY = "inventory";
     public final PlotPlayer<?> player;
     public final int size;
@@ -75,10 +78,7 @@ public class PlotInventory {
         if (this.title == null) {
             return;
         }
-        if (hasPlotInventoryOpen(player)) {
+        if (!hasPlotInventoryOpen(player)) {
-            PlotSquared.debug(String.format("Failed to open plot inventory for %s "
-                + "because the player already has an open plot inventory", player.getName()));
-        } else {
             this.open = true;
             setPlotInventoryOpen(player, this);
             this.inventoryUtil.open(this);

Core/src/main/java/com/plotsquared/core/plot/expiration/ExpireManager.java

@@ -48,6 +48,8 @@ import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.RunnableVal3;
 import com.plotsquared.core.util.task.TaskManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.util.ArrayDeque;
@@ -57,13 +59,14 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Objects;
-import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentLinkedDeque;
 
 public class ExpireManager {
 
+    private final Logger logger = LoggerFactory.getLogger("P2/" + ExpireManager.class);
+
     public static ExpireManager IMP;
     private final ConcurrentHashMap<UUID, Long> dates_cache;
     private final ConcurrentHashMap<UUID, Long> account_age_cache;
@@ -84,7 +87,6 @@ public class ExpireManager {
     }
 
     public void addTask(ExpiryTask task) {
-        PlotSquared.debug("Adding new expiry task!");
         this.tasks.add(task);
     }
 
@@ -425,21 +427,7 @@ public class ExpireManager {
                 MainUtil.sendMessage(player, Captions.PLOT_REMOVED_USER, plot.toString());
             }
         }
-        Set<Plot> plots = plot.getConnectedPlots();
         plot.deletePlot(whenDone);
-        PlotAnalysis changed = plot.getComplexity(null);
-        int changes = changed == null ? 0 : changed.changes_sd;
-        int modified = changed == null ? 0 : changed.changes;
-        PlotSquared.debug(
-            "$2[&5Expire&dManager$2] &cDeleted expired plot: " + plot + " User:" + plot.getOwner()
-                + " Delta:" + changes + "/" + modified + " Connected: " + StringMan
-                .getString(plots));
-        PlotSquared.debug("$4 - Area: " + plot.getArea());
-        if (plot.hasOwner()) {
-            PlotSquared.debug("$4 - Owner: " + plot.getOwner());
-        } else {
-            PlotSquared.debug("$4 - Owner: Unowned");
-        }
     }
 
     public long getAge(UUID uuid) {

Core/src/main/java/com/plotsquared/core/plot/expiration/PlotAnalysis.java

@@ -34,6 +34,8 @@ import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.query.PlotQuery;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.reflect.Array;
 import java.util.ArrayDeque;
@@ -44,6 +46,9 @@ import java.util.List;
 import java.util.concurrent.atomic.AtomicInteger;
 
 public class PlotAnalysis {
+
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotAnalysis.class.getSimpleName());
+
     public static boolean running = false;
     public int changes;
     public int faces;
@@ -92,22 +97,26 @@ public class PlotAnalysis {
      */
     public static void calcOptimalModifiers(final Runnable whenDone, final double threshold) {
         if (running) {
-            PlotSquared.debug("Calibration task already in progress!");
+            if (Settings.DEBUG) {
+                logger.info("[P2] Calibration task already in progress!");
+            }
             return;
         }
         if (threshold <= 0 || threshold >= 1) {
-            PlotSquared.debug(
+            if (Settings.DEBUG) {
-                "Invalid threshold provided! (Cannot be 0 or 100 as then there's no point calibrating)");
+                logger.info(
+                    "Invalid threshold provided! (Cannot be 0 or 100 as then there's no point in calibrating)");
+            }
             return;
         }
         running = true;
-        PlotSquared.debug(" - Fetching all plots");
         final List<Plot> plots = PlotQuery.newQuery().allPlots().asList();
         TaskManager.runTaskAsync(new Runnable() {
             @Override public void run() {
                 Iterator<Plot> iterator = plots.iterator();
-                PlotSquared.debug(
+                if (Settings.DEBUG) {
-                    " - $1Reducing " + plots.size() + " plots to those with sufficient data");
+                    logger.info("[P2] - Reducing {} plots to those with sufficient data", plots.size());
+                }
                 while (iterator.hasNext()) {
                     Plot plot = iterator.next();
                     if (plot.getSettings().getRatings() == null || plot.getSettings().getRatings()
@@ -117,11 +126,12 @@ public class PlotAnalysis {
                         plot.addRunning();
                     }
                 }
-                PlotSquared.debug(" - | Reduced to " + plots.size() + " plots");
 
                 if (plots.size() < 3) {
-                    PlotSquared.debug(
+                    if (Settings.DEBUG) {
+                        logger.info(
                             "Calibration cancelled due to insufficient comparison data, please try again later");
+                    }
                     running = false;
                     for (Plot plot : plots) {
                         plot.removeRunning();
@@ -129,7 +139,9 @@ public class PlotAnalysis {
                     return;
                 }
 
-                PlotSquared.debug(" - $1Analyzing plot contents (this may take a while)");
+                if (Settings.DEBUG) {
+                    logger.info("[P2] - Analyzing plot contents (this may take a while)");
+                }
 
                 int[] changes = new int[plots.size()];
                 int[] faces = new int[plots.size()];
@@ -155,7 +167,9 @@ public class PlotAnalysis {
                             ratings[i] = (int) (
                                 (plot.getAverageRating() + plot.getSettings().getRatings().size())
                                     * 100);
-                            PlotSquared.debug(" | " + plot + " (rating) " + ratings[i]);
+                            if (Settings.DEBUG) {
+                                logger.info("[P2]  | {} (rating) {}", plot, ratings[i]);
+                            }
                         }
                     }
                 });
@@ -167,7 +181,9 @@ public class PlotAnalysis {
                     if (queuePlot == null) {
                         break;
                     }
-                    PlotSquared.debug(" | " + queuePlot);
+                    if (Settings.DEBUG) {
+                        logger.info("[P2]  | {}", queuePlot);
+                    }
                     final Object lock = new Object();
                     TaskManager.runTask(new Runnable() {
                         @Override public void run() {
@@ -197,20 +213,25 @@ public class PlotAnalysis {
                     }
                 }
 
-                PlotSquared.debug(
+                if (Settings.DEBUG) {
-                    " - $1Waiting on plot rating thread: " + mi.intValue() * 100 / plots.size()
+                    logger.info("[P2]  - Waiting on plot rating thread: {}%", mi.intValue() * 100 / plots.size());
-                        + "%");
+                }
+
                 try {
                     ratingAnalysis.join();
                 } catch (InterruptedException e) {
                     e.printStackTrace();
                 }
 
-                PlotSquared
+                if (Settings.DEBUG) {
-                    .debug(" - $1Processing and grouping single plot analysis for bulk processing");
+                    logger.info(
+                        " - Processing and grouping single plot analysis for bulk processing");
+                }
                 for (int i = 0; i < plots.size(); i++) {
                     Plot plot = plots.get(i);
-                    PlotSquared.debug(" | " + plot);
+                    if (Settings.DEBUG) {
+                        logger.info("[P2]  | {}", plot);
+                    }
                     PlotAnalysis analysis = plot.getComplexity(null);
 
                     changes[i] = analysis.changes;
@@ -226,18 +247,22 @@ public class PlotAnalysis {
                     variety_sd[i] = analysis.variety_sd;
                 }
 
-                PlotSquared.debug(" - $1Calculating rankings");
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - Calculating rankings");
+                }
 
                 int[] rankRatings = rank(ratings);
                 int n = rankRatings.length;
 
                 int optimalIndex = (int) Math.round((1 - threshold) * (n - 1));
 
-                PlotSquared.debug(" - $1Calculating rank correlation: ");
+                if (Settings.DEBUG) {
-                PlotSquared.debug(
+                    logger.info("[P2]  - Calculating rank correlation: ");
+                    logger.info(
                         " - The analyzed plots which were processed and put into bulk data will be compared and correlated to the plot ranking");
-                PlotSquared.debug(
+                    logger.info(
                         " - The calculated correlation constant will then be used to calibrate the threshold for auto plot clearing");
+                }
 
                 Settings.Auto_Clear settings = new Settings.Auto_Clear();
 
@@ -249,7 +274,10 @@ public class PlotAnalysis {
                 settings.CALIBRATION.CHANGES = factorChanges == 1 ?
                     0 :
                     (int) (factorChanges * 1000 / MathMan.getMean(changes));
-                PlotSquared.debug(" - | changes " + factorChanges);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | changes {}", factorChanges);
+                }
 
                 int[] rankFaces = rank(faces);
                 int[] sdFaces = getSD(rankFaces, rankRatings);
@@ -258,7 +286,10 @@ public class PlotAnalysis {
                 double factorFaces = getCC(n, sumFaces);
                 settings.CALIBRATION.FACES =
                     factorFaces == 1 ? 0 : (int) (factorFaces * 1000 / MathMan.getMean(faces));
-                PlotSquared.debug(" - | faces " + factorFaces);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | faces {}", factorFaces);
+                }
 
                 int[] rankData = rank(data);
                 int[] sdData = getSD(rankData, rankRatings);
@@ -267,7 +298,10 @@ public class PlotAnalysis {
                 double factor_data = getCC(n, sum_data);
                 settings.CALIBRATION.DATA =
                     factor_data == 1 ? 0 : (int) (factor_data * 1000 / MathMan.getMean(data));
-                PlotSquared.debug(" - | data " + factor_data);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | data {}", factor_data);
+                }
 
                 int[] rank_air = rank(air);
                 int[] sd_air = getSD(rank_air, rankRatings);
@@ -276,7 +310,10 @@ public class PlotAnalysis {
                 double factor_air = getCC(n, sum_air);
                 settings.CALIBRATION.AIR =
                     factor_air == 1 ? 0 : (int) (factor_air * 1000 / MathMan.getMean(air));
-                PlotSquared.debug(" - | air " + factor_air);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2] - | air {}", factor_air);
+                }
 
                 int[] rank_variety = rank(variety);
                 int[] sd_variety = getSD(rank_variety, rankRatings);
@@ -286,7 +323,10 @@ public class PlotAnalysis {
                 settings.CALIBRATION.VARIETY = factor_variety == 1 ?
                     0 :
                     (int) (factor_variety * 1000 / MathMan.getMean(variety));
-                PlotSquared.debug(" - | variety " + factor_variety);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2] - | variety {}", factor_variety);
+                }
 
                 int[] rank_changes_sd = rank(changes_sd);
                 int[] sd_changes_sd = getSD(rank_changes_sd, rankRatings);
@@ -296,7 +336,10 @@ public class PlotAnalysis {
                 settings.CALIBRATION.CHANGES_SD = factor_changes_sd == 1 ?
                     0 :
                     (int) (factor_changes_sd * 1000 / MathMan.getMean(changes_sd));
-                PlotSquared.debug(" - | changes_sd " + factor_changes_sd);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | changed_sd {}", factor_changes_sd);
+                }
 
                 int[] rank_faces_sd = rank(faces_sd);
                 int[] sd_faces_sd = getSD(rank_faces_sd, rankRatings);
@@ -306,7 +349,10 @@ public class PlotAnalysis {
                 settings.CALIBRATION.FACES_SD = factor_faces_sd == 1 ?
                     0 :
                     (int) (factor_faces_sd * 1000 / MathMan.getMean(faces_sd));
-                PlotSquared.debug(" - | faces_sd " + factor_faces_sd);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | faced_sd {}", factor_faces_sd);
+                }
 
                 int[] rank_data_sd = rank(data_sd);
                 int[] sd_data_sd = getSD(rank_data_sd, rankRatings);
@@ -316,7 +362,10 @@ public class PlotAnalysis {
                 settings.CALIBRATION.DATA_SD = factor_data_sd == 1 ?
                     0 :
                     (int) (factor_data_sd * 1000 / MathMan.getMean(data_sd));
-                PlotSquared.debug(" - | data_sd " + factor_data_sd);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | data_sd {}", factor_data_sd);
+                }
 
                 int[] rank_air_sd = rank(air_sd);
                 int[] sd_air_sd = getSD(rank_air_sd, rankRatings);
@@ -325,7 +374,10 @@ public class PlotAnalysis {
                 double factor_air_sd = getCC(n, sum_air_sd);
                 settings.CALIBRATION.AIR_SD =
                     factor_air_sd == 1 ? 0 : (int) (factor_air_sd * 1000 / MathMan.getMean(air_sd));
-                PlotSquared.debug(" - | air_sd " + factor_air_sd);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | air_sd {}", factor_air_sd);
+                }
 
                 int[] rank_variety_sd = rank(variety_sd);
                 int[] sd_variety_sd = getSD(rank_variety_sd, rankRatings);
@@ -335,11 +387,17 @@ public class PlotAnalysis {
                 settings.CALIBRATION.VARIETY_SD = factor_variety_sd == 1 ?
                     0 :
                     (int) (factor_variety_sd * 1000 / MathMan.getMean(variety_sd));
-                PlotSquared.debug(" - | variety_sd " + factor_variety_sd);
+
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  - | variety_sd {}", factor_variety_sd);
+                }
 
                 int[] complexity = new int[n];
 
-                PlotSquared.debug(" $1Calculating threshold");
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  Calculating threshold");
+                }
+
                 int max = 0;
                 int min = 0;
                 for (int i = 0; i < n; i++) {
@@ -368,9 +426,10 @@ public class PlotAnalysis {
                     logln("Correlation: ");
                     logln(getCC(n, sum(square(getSD(rankComplexity, rankRatings)))));
                     if (optimalComplexity == Integer.MAX_VALUE) {
-                        PlotSquared.debug(
+                        if (Settings.DEBUG) {
-                            "Insufficient data to determine correlation! " + optimalIndex + " | "
+                            logger.info("[P2] Insufficient data to determine correlation! {} | {}",
-                                + n);
+                                optimalIndex, n);
+                        }
                         running = false;
                         for (Plot plot : plots) {
                             plot.removeRunning();
@@ -388,21 +447,27 @@ public class PlotAnalysis {
                 }
 
                 // Save calibration
-                PlotSquared.debug(" $1Saving calibration");
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  Saving calibration");
+                }
                 Settings.AUTO_CLEAR.put("auto-calibrated", settings);
                 Settings.save(PlotSquared.get().getWorldsFile());
-                PlotSquared.debug("$1Done!");
                 running = false;
                 for (Plot plot : plots) {
                     plot.removeRunning();
                 }
+                if (Settings.DEBUG) {
+                    logger.info("[P2]  Done!");
+                }
                 whenDone.run();
             }
         });
     }
 
     public static void logln(Object obj) {
-        PlotSquared.debug(log(obj));
+        if (Settings.DEBUG) {
+            logger.info("[P2] " + log(obj));
+        }
     }
 
     public static String log(Object obj) {

Core/src/main/java/com/plotsquared/core/plot/flag/FlagContainer.java

@@ -27,9 +27,12 @@ package com.plotsquared.core.plot.flag;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableMap;
-import com.plotsquared.core.PlotSquared;
 import lombok.EqualsAndHashCode;
 import lombok.Setter;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
@@ -44,6 +47,8 @@ import java.util.Map;
  */
 @EqualsAndHashCode(of = "flagMap") public class FlagContainer {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + FlagContainer.class.getSimpleName());
+
     private final Map<String, String> unknownFlags = new HashMap<>();
     private final Map<Class<?>, PlotFlag<?, ?>> flagMap = new HashMap<>();
     private final PlotFlagUpdateHandler plotFlagUpdateHandler;
@@ -145,11 +150,9 @@ import java.util.Map;
             this.updateSubscribers
                 .forEach(subscriber -> subscriber.handle(flag, plotFlagUpdateType));
         } catch (IllegalStateException e) {
-            PlotSquared.log(String.format(
+            logger.info("[P2] Flag {} (class '{}') could not be added to the container because the "
-                "Flag '%s' (class: '%s') could not be added to the container"
+                + "flag name exceeded the allowed limit of 64 characters. Please tell the developer "
-                    + " because the flag name exceeded the allowed limit of 64 characters."
+                + "of the flag to fix this.", flag.getName(), flag.getClass().getName());
-                    + " Please tell the developer of that flag to fix this.", flag.getName(),
-                flag.getClass().getName()));
             e.printStackTrace();
         }
     }

Core/src/main/java/com/plotsquared/core/plot/flag/types/BlockTypeWrapper.java

@@ -27,13 +27,15 @@ package com.plotsquared.core.plot.flag.types;
 
 import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
-import com.plotsquared.core.PlotSquared;
+import com.plotsquared.core.configuration.Settings;
 import com.sk89q.worldedit.world.block.BlockCategory;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
 import lombok.Getter;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -44,6 +46,8 @@ import java.util.Map;
  */
 public class BlockTypeWrapper {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + BlockTypeWrapper.class.getSimpleName());
+
     private static final Map<BlockType, BlockTypeWrapper> blockTypes = new HashMap<>();
     private static final Map<String, BlockTypeWrapper> blockCategories = new HashMap<>();
     @Nullable @Getter private final BlockType blockType;
@@ -129,7 +133,9 @@ public class BlockTypeWrapper {
             && this.blockCategoryId != null) { // only if name is available
             this.blockCategory = BlockCategory.REGISTRY.get(this.blockCategoryId);
             if (this.blockCategory == null && !BlockCategory.REGISTRY.values().isEmpty()) {
-                PlotSquared.debug("- Block category #" + this.blockCategoryId + " does not exist");
+                if (Settings.DEBUG) {
+                    logger.info("[P2] - Block category #{} does not exist", this.blockCategoryId);
+                }
                 this.blockCategory = new NullBlockCategory(this.blockCategoryId);
             }
         }

Core/src/main/java/com/plotsquared/core/plot/message/PlotMessage.java

@@ -29,18 +29,20 @@ import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.util.ChatManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class PlotMessage {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotMessage.class.getSimpleName());
+
     private Object builder;
 
     public PlotMessage() {
         try {
             reset(ChatManager.manager);
         } catch (Throwable e) {
-            PlotSquared.debug(
+            logger.error("[P2] {} doesn't support fancy chat for {}", PlotSquared.imp().getPluginName(), PlotSquared.get().IMP.getServerVersion());
-                PlotSquared.platform().getPluginName() + " doesn't support fancy chat for " + PlotSquared
-                    .platform().getServerVersion());
             ChatManager.manager = new PlainChatManager();
             reset(ChatManager.manager);
         }

Core/src/main/java/com/plotsquared/core/queue/LocationOffsetDelegateLocalBlockQueue.java

@@ -25,17 +25,20 @@
  */
 package com.plotsquared.core.queue;
 
-import com.plotsquared.core.PlotSquared;
 import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.annotation.Nullable;
 
 public class LocationOffsetDelegateLocalBlockQueue extends DelegateLocalBlockQueue {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + LocationOffsetDelegateLocalBlockQueue.class.getSimpleName());
+
     private final boolean[][] canPlace;
     private final int blockX;
     private final int blockZ;
@@ -61,10 +64,6 @@ public class LocationOffsetDelegateLocalBlockQueue extends DelegateLocalBlockQue
                 return super.setBlock(x, y, z, id);
             }
         } catch (final Exception e) {
-            PlotSquared.debug(String.format(
-                "Failed to set block at: %d;%d;%d (to = %s) with offset %d;%d."
-                    + " Translated to: %d;%d", x, y, z, id, blockX, blockZ, x - blockX,
-                z - blockZ));
             throw e;
         }
         return false;

Core/src/main/java/com/plotsquared/core/util/Expression.java

@@ -25,13 +25,18 @@
  */
 package com.plotsquared.core.util;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.command.DebugExec;
 import com.plotsquared.core.command.MainCommand;
+import com.plotsquared.core.configuration.Settings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.script.ScriptException;
 
 public abstract class Expression<T> {
+
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + Expression.class.getSimpleName());
+
     public static <U> Expression<U> constant(final U value) {
         return new Expression<U>() {
             @Override public U evaluate(U arg) {
@@ -66,7 +71,9 @@ public abstract class Expression<T> {
                 try {
                     return (Double) exec.getEngine().eval(expression.replace("{arg}", "" + arg));
                 } catch (ScriptException e) {
-                    PlotSquared.debug("Invalid Expression: " + expression);
+                    if (Settings.DEBUG) {
+                        logger.info("[P2] Invalid expression: {}", expression);
+                    }
                     e.printStackTrace();
                 }
                 return 0d;

Core/src/main/java/com/plotsquared/core/util/LegacyConverter.java

@@ -25,7 +25,6 @@
  */
 package com.plotsquared.core.util;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.CaptionUtility;
 import com.plotsquared.core.configuration.Captions;
 import com.plotsquared.core.configuration.ConfigurationSection;
@@ -33,6 +32,8 @@ import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.plot.BlockBucket;
 import com.sk89q.worldedit.world.block.BlockState;
 import javax.annotation.Nonnull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.Collection;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ import java.util.Map;
 @SuppressWarnings("unused")
 public final class LegacyConverter {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + LegacyConverter.class.getSimpleName());
     public static final String CONFIGURATION_VERSION = "post_flattening";
     private static final HashMap<String, ConfigurationType> TYPE_MAP = new HashMap<>();
 
@@ -109,7 +111,7 @@ public final class LegacyConverter {
         @Nonnull final String key, @Nonnull final String block) {
         final BlockBucket bucket = this.blockToBucket(block);
         this.setString(section, key, bucket);
-        PlotSquared.log(CaptionUtility
+        logger.info(CaptionUtility
             .format(ConsolePlayer.getConsole(), Captions.LEGACY_CONFIG_REPLACED.getTranslated(),
                 block, bucket.toString()));
     }
@@ -119,7 +121,7 @@ public final class LegacyConverter {
         final BlockState[] blocks = this.splitBlockList(blockList);
         final BlockBucket bucket = this.blockListToBucket(blocks);
         this.setString(section, key, bucket);
-        PlotSquared.log(CaptionUtility
+        logger.info(CaptionUtility
             .format(ConsolePlayer.getConsole(), Captions.LEGACY_CONFIG_REPLACED.getTranslated(),
                 plotBlockArrayString(blocks), bucket.toString()));
     }

Core/src/main/java/com/plotsquared/core/util/MainUtil.java

@@ -57,6 +57,8 @@ import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
@@ -98,6 +100,7 @@ import java.util.stream.IntStream;
  */
 public class MainUtil {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + MainUtil.class.getSimpleName());
     private static final DecimalFormat FLAG_DECIMAL_FORMAT = new DecimalFormat("0");
 
     static {
@@ -154,7 +157,6 @@ public class MainUtil {
     public static void upload(UUID uuid, String file, String extension,
         final RunnableVal<OutputStream> writeTask, final RunnableVal<URL> whenDone) {
         if (writeTask == null) {
-            PlotSquared.debug("&cWrite task cannot be null");
             TaskManager.runTask(whenDone);
             return;
         }
@@ -216,7 +218,6 @@ public class MainUtil {
                     content = scanner.next().trim();
                 }
                 if (!content.startsWith("<")) {
-                    PlotSquared.debug(content);
                 }
                 int responseCode = ((HttpURLConnection) con).getResponseCode();
                 if (responseCode == 200) {
@@ -539,7 +540,7 @@ public class MainUtil {
         if (arg == null) {
             if (player == null) {
                 if (message) {
-                    PlotSquared.log(Captions.NOT_VALID_PLOT_WORLD);
+                    logger.info("[P2] No plot area string was supplied");
                 }
                 return null;
             }
@@ -662,7 +663,7 @@ public class MainUtil {
             if (player == null) {
                 String message = CaptionUtility
                     .format(null, (prefix ? Captions.PREFIX.getTranslated() : "") + msg);
-                PlotSquared.log(message);
+                logger.info(message);
             } else {
                 player.sendMessage(CaptionUtility.format(player,
                     (prefix ? Captions.PREFIX.getTranslated() : "") + Captions.color(msg)));
@@ -697,7 +698,7 @@ public class MainUtil {
         TaskManager.runTaskAsync(() -> {
             String m = CaptionUtility.format(player, caption, args);
             if (player == null) {
-                PlotSquared.log(m);
+                logger.info(m);
             } else {
                 player.sendMessage(m);
             }
@@ -914,8 +915,6 @@ public class MainUtil {
                 for (File file : files) {
                     if (file.isDirectory()) {
                         deleteDirectory(file);
-                    } else {
-                        PlotSquared.debug("Deleting file: " + file + " | " + file.delete());
                     }
                 }
             }

Core/src/main/java/com/plotsquared/core/util/RegionManager.java

@@ -37,6 +37,8 @@ import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.world.biome.BiomeType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import javax.annotation.Nonnull;
 
 import java.io.File;
@@ -46,6 +48,10 @@ import java.util.Set;
 
 public abstract class RegionManager {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + RegionManager.class.getSimpleName());
+
+    public static RegionManager manager = null;
+
     public static BlockVector2 getRegion(Location location) {
         int x = location.getX() >> 9;
         int z = location.getZ() >> 9;
@@ -147,7 +153,7 @@ public abstract class RegionManager {
                     world + File.separator + "region" + File.separator + "r." + loc.getX() + "."
                         + loc.getZ() + ".mca";
                 File file = new File(PlotSquared.platform().getWorldContainer(), directory);
-                PlotSquared.log("&6 - Deleting file: " + file.getName() + " (max 1024 chunks)");
+                logger.info("[P2] - Deleting file: {} (max 1024 chunks)", file.getName());
                 if (file.exists()) {
                     file.delete();
                 }

Core/src/main/java/com/plotsquared/core/util/SchematicHandler.java

@@ -61,6 +61,8 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import javax.annotation.Nonnull;
 import org.json.JSONArray;
 import org.json.JSONException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
@@ -94,6 +96,9 @@ import java.util.zip.GZIPOutputStream;
 
 public abstract class SchematicHandler {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + SchematicHandler.class.getSimpleName());
+    public static SchematicHandler manager;
+
     private boolean exportAll = false;
 
     private final WorldUtil worldUtil;
@@ -151,17 +156,11 @@ public abstract class SchematicHandler {
                 final Runnable THIS = this;
                 getCompoundTag(plot, new RunnableVal<CompoundTag>() {
                     @Override public void run(final CompoundTag value) {
-                        if (value == null) {
+                        if (value != null) {
-                            MainUtil.sendMessage(null, "&7 - Skipped plot &c" + plot.getId());
-                        } else {
                             TaskManager.runTaskAsync(() -> {
-                                MainUtil.sendMessage(null, "&6ID: " + plot.getId());
                                 boolean result = save(value, directory + File.separator + name + ".schem");
                                 if (!result) {
-                                    MainUtil
+                                    logger.error("[P2] Failed to save {}", plot.getId());
-                                        .sendMessage(null, "&7 - Failed to save &c" + plot.getId());
-                                } else {
-                                    MainUtil.sendMessage(null, "&7 - &a  success: " + plot.getId());
                                 }
                                 TaskManager.runTask(THIS);
                             });
@@ -190,7 +189,6 @@ public abstract class SchematicHandler {
                 whenDone.value = false;
             }
             if (schematic == null) {
-                PlotSquared.debug("Schematic == null :|");
                 TaskManager.runTask(whenDone);
                 return;
             }
@@ -206,12 +204,6 @@ public abstract class SchematicHandler {
                     + 1) < WIDTH) || (
                     (region.getMaximumPoint().getZ() - region.getMinimumPoint().getZ() + zOffset
                         + 1) < LENGTH) || (HEIGHT > 256)) {
-                    PlotSquared.debug("Schematic is too large");
-                    PlotSquared.debug(
-                        "(" + WIDTH + ',' + LENGTH + ',' + HEIGHT + ") is bigger than (" + (
-                            region.getMaximumPoint().getX() - region.getMinimumPoint().getX()) + ','
-                            + (region.getMaximumPoint().getZ() - region.getMinimumPoint().getZ())
-                            + ",256)");
                     TaskManager.runTask(whenDone);
                     return;
                 }
@@ -409,8 +401,6 @@ public abstract class SchematicHandler {
                 return new Schematic(clip);
             } catch (IOException e) {
                 e.printStackTrace();
-                PlotSquared.debug(is.toString() + " | " + is.getClass().getCanonicalName()
-                    + " is not in GZIP format : " + e.getMessage());
             }
         }
         return null;
@@ -436,14 +426,12 @@ public abstract class SchematicHandler {
             return schematics;
         } catch (JSONException | IOException e) {
             e.printStackTrace();
-            PlotSquared.debug("ERROR PARSING: " + rawJSON);
         }
         return null;
     }
 
     public void upload(final CompoundTag tag, UUID uuid, String file, RunnableVal<URL> whenDone) {
         if (tag == null) {
-            PlotSquared.debug("&cCannot save empty tag");
             TaskManager.runTask(whenDone);
             return;
         }
@@ -468,7 +456,6 @@ public abstract class SchematicHandler {
      */
     public boolean save(CompoundTag tag, String path) {
         if (tag == null) {
-            PlotSquared.debug("&cCannot save empty tag");
             return false;
         }
         try {

Core/src/main/java/com/plotsquared/core/util/logger/ILogger.java

@@ -25,6 +25,6 @@
  */
 package com.plotsquared.core.util.logger;
 
-public interface ILogger {
+@Deprecated public interface ILogger {
-    void log(String message);
+    @Deprecated void log(String message);
 }

Core/src/main/java/com/plotsquared/core/util/net/IncendoPaster.java

@@ -26,7 +26,8 @@
 package com.plotsquared.core.util.net;
 
 import com.google.common.base.Charsets;
-import com.plotsquared.core.PlotSquared;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
@@ -47,6 +48,8 @@ import java.util.Locale;
 @SuppressWarnings({"unused", "WeakerAccess"})
 public final class IncendoPaster {
 
+    private static Logger logger = LoggerFactory.getLogger("P2/" + IncendoPaster.class);
+
     /**
      * Upload service URL
      */
@@ -158,7 +161,7 @@ public final class IncendoPaster {
         if (!httpURLConnection.getResponseMessage().contains("OK")) {
             if (httpURLConnection.getResponseCode() == 413) {
                 final long size = content.length;
-                PlotSquared.debug(String.format("Paste Too Big > Size: %dMB", size / 1_000_000));
+                logger.error("[P2] Paste too big > size: {}MB", size / 1_000_000);
             }
             throw new IllegalStateException(String
                 .format("Server returned status: %d %s", httpURLConnection.getResponseCode(),

Core/src/main/java/com/plotsquared/core/uuid/UUIDPipeline.java

@@ -33,6 +33,8 @@ import com.plotsquared.core.util.ThreadUtils;
 import com.plotsquared.core.util.task.TaskManager;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -62,6 +64,8 @@ import java.util.function.Function;
  */
 public class UUIDPipeline {
 
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + UUIDPipeline.class.getSimpleName());
+
     private final Executor executor;
     private final List<UUIDService> serviceList;
     private final List<Consumer<List<UUIDMapping>>> consumerList;
@@ -164,7 +168,7 @@ public class UUIDPipeline {
         } catch (InterruptedException | ExecutionException e) {
             e.printStackTrace();
         } catch (TimeoutException ignored) {
-            PlotSquared.log(Captions.PREFIX + " (UUID) Request for " + username + " timed out");
+            logger.warn("[P2] (UUID) Request for {} timed out", username);
             // This is completely valid, we just don't care anymore
         }
         return null;
@@ -187,7 +191,7 @@ public class UUIDPipeline {
         } catch (InterruptedException | ExecutionException e) {
             e.printStackTrace();
         } catch (TimeoutException ignored) {
-            PlotSquared.log(Captions.PREFIX + " (UUID) Request for " + uuid + " timed out");
+            logger.warn("[P2] (UUID) Request for {} timed out", uuid);
             // This is completely valid, we just don't care anymore
         }
         return null;
@@ -321,7 +325,7 @@ public class UUIDPipeline {
                 this.consume(mappings);
                 return mappings;
             } else if (Settings.DEBUG) {
-                PlotSquared.log("Failed to find all usernames");
+                logger.info("[P2] (UUID) Failed to find all usernames");
             }
 
             if (Settings.UUID.UNKNOWN_AS_DEFAULT) {
@@ -384,7 +388,7 @@ public class UUIDPipeline {
                 this.consume(mappings);
                 return mappings;
             } else if (Settings.DEBUG) {
-                PlotSquared.log("Failed to find all UUIDs");
+                logger.info("[P2] (UUID) Failed to find all UUIDs");
             }
 
             throw new ServiceError("End of pipeline");