replace remaining debug calls

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

@@ -25,7 +25,6 @@
  */
 package com.plotsquared.bukkit.entity;
 
-import com.plotsquared.core.PlotSquared;
 import org.bukkit.Art;
 import org.bukkit.DyeColor;
 import org.bukkit.Location;
@@ -55,11 +54,15 @@ 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(ReplicatingEntityWrapper.class);
+
     private final short depth;
     private final int hash;
     private final EntityBaseStats base = new EntityBaseStats();
@@ -331,7 +334,7 @@ public final class ReplicatingEntityWrapper extends EntityWrapper {
                 return;
             // END LIVING //
             default:
-                PlotSquared.debug("&cCOULD NOT IDENTIFY ENTITY: " + entity.getType());
+                logger.debug("Could not identify entity: {}", entity.getType());
         }
     }
 
@@ -387,7 +390,7 @@ 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("Failed to restore inventory", e);
         }
     }
 
@@ -730,7 +733,7 @@ public final class ReplicatingEntityWrapper extends EntityWrapper {
                 restoreLiving((LivingEntity) entity);
                 return entity;
             default:
-                PlotSquared.debug("&cCOULD NOT IDENTIFY ENTITY: " + entity.getType());
+                logger.debug("Could not identify entity: {}", entity.getType());
                 return entity;
             // END LIVING
         }

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

@@ -51,6 +51,8 @@ import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.event.entity.ItemSpawnEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.lang.reflect.Method;
 import java.util.HashSet;
@@ -60,6 +62,8 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 @SuppressWarnings("unused")
 public class ChunkListener implements Listener {
 
+    private static final Logger logger = LoggerFactory.getLogger(ChunkListener.class);
+
     private RefMethod methodGetHandleChunk;
     private RefField mustSave;
     private Chunk lastChunk;
@@ -73,9 +77,6 @@ public class ChunkListener implements Listener {
                 this.mustSave = classChunk.getField("mustSave");
                 this.methodGetHandleChunk = classCraftChunk.getMethod("getHandle");
             } catch (Throwable ignored) {
-                PlotSquared.debug(PlotSquared.get().IMP.getPluginName()
-                    + "/Server not compatible for chunk processor trim/gc");
-
                 Settings.Chunk_Processor.AUTO_TRIM = false;
             }
         }
@@ -251,7 +252,6 @@ 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;
             }
@@ -259,7 +259,6 @@ 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;
             }
@@ -269,7 +268,6 @@ 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;
                 }
@@ -297,15 +295,11 @@ public class ChunkListener implements Listener {
                 }
             }
 
-            PlotSquared.debug(
+            logger.debug("PlotSquared detected chunk and processed it: {},{}", chunk.getX() << 4, chunk.getZ() << 4);
-                "PlotSquared detected unsafe chunk and processed: " + (chunk.getX() << 4) + "," + (
-                    chunk.getX() << 4));
         }
         if (tiles.length > Settings.Chunk_Processor.MAX_TILES) {
             if (unload) {
-                PlotSquared.debug(
+                logger.debug("PlotSquared detected chunk: {},{}", chunk.getX() << 4, chunk.getZ() << 4);
-                    "PlotSquared detected unsafe chunk: " + (chunk.getX() << 4) + "," + (
-                        chunk.getX() << 4));
                 cleanChunk(chunk);
                 return true;
             }

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

@@ -987,7 +987,8 @@ public class PlayerEvents extends PlotListener implements Listener {
                 player.sendMessage(spyMessage);
             }
         }
-        PlotSquared.debug(full);
+        // TODO: Re-implement
+        // PlotSquared.debug(full);
     }
 
     @EventHandler(priority = EventPriority.LOWEST) public void blockDestroy(BlockBreakEvent event) {
@@ -2435,7 +2436,6 @@ public class PlayerEvents extends PlotListener implements Listener {
         }
         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

@@ -27,11 +27,9 @@ 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;
-import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.WorldEdit;
@@ -85,8 +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");
         }
     }
 
@@ -109,8 +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

@@ -26,7 +26,6 @@
 package com.plotsquared.bukkit.util;
 
 import com.plotsquared.bukkit.BukkitMain;
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.generator.AugmentedUtils;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.location.PlotLoc;
@@ -55,6 +54,8 @@ 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.ArrayDeque;
 import java.util.ArrayList;
@@ -75,6 +76,8 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
 
 public class BukkitRegionManager extends RegionManager {
 
+    private static final Logger logger = LoggerFactory.getLogger(BukkitRegionManager.class);
+
     public static boolean isIn(CuboidRegion region, int x, int z) {
         return x >= region.getMinimumPoint().getX() && x <= region.getMaximumPoint().getX()
             && z >= region.getMinimumPoint().getZ() && z <= region.getMaximumPoint().getZ();
@@ -90,7 +93,7 @@ public class BukkitRegionManager extends RegionManager {
         } else {
             final Semaphore semaphore = new Semaphore(1);
             try {
-                PlotSquared.debug("Attempting to make an asynchronous call to getLoadedChunks."
+                logger.debug("Attempting to make an asynchronous call to getLoadedChunks."
                     + " Will halt the calling thread until completed.");
                 semaphore.acquire();
                 Bukkit.getScheduler().runTask(BukkitMain.getPlugin(BukkitMain.class), () -> {

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

@@ -468,7 +468,6 @@ public class BukkitUtil extends WorldUtil {
                     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();

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(ContentMap.class);
+
     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("Failed to restore entity", e);
-                e.printStackTrace();
             }
         }
         this.entities.clear();

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

@@ -383,35 +383,6 @@ public class PlotSquared {
         throw new IllegalStateException("Plot main implementation is missing");
     }
 
-    /**
-     * Log a message to the IPlotMain logger.
-     *
-     * @param message Message to log
-     * @see IPlotMain#log(String)
-     * @deprecated Use slf4j
-     */
-    @Deprecated public static void log(Object message) {
-        if (message == null || (message instanceof Caption ?
-            ((Caption) message).getTranslated().isEmpty() :
-            message.toString().isEmpty())) {
-            return;
-        }
-        logger.info(StringMan.getString(message));
-    }
-
-    /**
-     * Log a message to the IPlotMain logger.
-     *
-     * @param message Message to log
-     * @see IPlotMain#log(String)
-     * @deprecated Use sl4j
-     */
-    @Deprecated public static void debug(@Nullable Object message) {
-        if (Settings.DEBUG) {
-            logger.debug(StringMan.getString(message));
-        }
-    }
-
     private void startExpiryTasks() {
         if (Settings.Enabled_Components.PLOT_EXPIRY) {
             ExpireManager.IMP = new ExpireManager();
@@ -540,8 +511,8 @@ public class PlotSquared {
                 chunkInts.forEach(l -> chunks.add(BlockVector2.at(l[0], l[1])));
                 int height = (int) list.get(2);
                 logger.info("Incomplete road regeneration found. Restarting in world {} with height {}", plotArea.getWorldName(), height);
-                PlotSquared.debug("   Regions: " + regions.size());
+                logger.debug("  Regions: {}", regions.size());
-                PlotSquared.debug("   Chunks: " + chunks.size());
+                logger.debug("  Chunks: {}", chunks.size());
                 HybridUtils.UPDATE = true;
                 HybridUtils.manager.scheduleRoadUpdate(plotArea, regions, height, chunks);
             } catch (IOException | ClassNotFoundException e) {
@@ -1108,7 +1079,7 @@ public class PlotSquared {
         }
         if (type == PlotAreaType.NORMAL) {
             if (plotAreaManager.getPlotAreas(world, null).length != 0) {
-                debug("World possibly already loaded: " + world);
+                logger.debug("Would possibly already loaded: {}", world);
                 return;
             }
             IndependentPlotGenerator plotGenerator;

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

@@ -167,7 +167,8 @@ 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/command/Claim.java

@@ -44,6 +44,8 @@ import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 @CommandDeclaration(command = "claim",
     aliases = "c",
@@ -54,6 +56,8 @@ import com.plotsquared.core.util.task.TaskManager;
     usage = "/plot claim")
 public class Claim extends SubCommand {
 
+    private static final Logger logger = LoggerFactory.getLogger(Claim.class);
+
     @Override public boolean onCommand(final PlotPlayer<?> player, String[] args) {
         String schematic = null;
         if (args.length >= 1) {
@@ -133,7 +137,7 @@ public class Claim extends SubCommand {
         DBFunc.createPlotSafe(plot, () -> TaskManager.IMP.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);
@@ -148,7 +152,7 @@ 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/DebugExec.java

@@ -452,7 +452,6 @@ public class DebugExec extends SubCommand {
             }
             init();
             this.scope.put("PlotPlayer", player);
-            PlotSquared.debug("> " + script);
             try {
                 if (async) {
                     final String toExec = script;

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

@@ -175,7 +175,6 @@ public class Purge extends SubCommand {
         boolean finalClear = clear;
         Runnable run = () -> {
             logger.debug("Calculating plots to purge, please wait...");
-            PlotSquared.debug("Calculating plots to purge, please wait...");
             HashSet<Integer> ids = new HashSet<>();
             Iterator<Plot> iterator = toDelete.iterator();
             AtomicBoolean cleared = new AtomicBoolean(true);

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

@@ -111,7 +111,6 @@ public class Trim extends SubCommand {
                     BlockVector2 loc = BlockVector2.at(x, z);
                     empty.add(loc);
                 } catch (NumberFormatException ignored) {
-                    PlotSquared.debug("INVALID MCA: " + name);
                 }
             }
         });

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/file/YamlConfiguration.java

@@ -29,6 +29,8 @@ import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.Configuration;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.InvalidConfigurationException;
+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(YamlConfiguration.class);
+
     private static final String COMMENT_PREFIX = "# ";
     private static final String BLANK_CONFIG = "{}\n";
     private final DumperOptions yamlOptions = new DumperOptions();
@@ -76,11 +81,11 @@ 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);
+                logger.debug("Could not read: {}", file);
-                PlotSquared.debug("&dRenamed to: &7" + dest.getName());
+                logger.debug("Renamed to: {}", file);
-                PlotSquared.debug("&c============ Full stacktrace ============");
+                logger.debug("============ Full stacktrace ============");
                 ex.printStackTrace();
-                PlotSquared.debug("&c=========================================");
+                logger.debug("=========================================");
             } catch (IOException e) {
                 e.printStackTrace();
             }

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

@@ -626,9 +626,7 @@ public class SQLManager implements AbstractDB {
                                         }
                                     })))));
                     } catch (SQLException e) {
-                        e.printStackTrace();
+                        logger.error("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) {
@@ -2496,8 +2494,7 @@ public class SQLManager implements AbstractDB {
                 }
             }
         } catch (SQLException e) {
-            PlotSquared
+            logger.error("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;

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(SQLite.class);
+
     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("Unable to create database");
             }
         }
         Class.forName("org.sqlite.JDBC");

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

@@ -26,7 +26,6 @@
 package com.plotsquared.core.generator;
 
 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.location.Location;
@@ -283,10 +282,10 @@ public class HybridPlotWorld extends ClassicPlotWorld {
                 }
             }
 
-            PlotSquared.debug(Captions.PREFIX + "&3 - plot schematic: &7"  + schematic3File.getPath());
+            logger.debug(" - plot schematic: {}", schematic3File.getPath());
         }
         if (schematic1 == null || schematic2 == null || this.ROAD_WIDTH == 0) {
-            PlotSquared.debug(Captions.PREFIX + "&3 - schematic: &7false");
+            logger.debug(" - schematic: false");
             return;
         }
         this.ROAD_SCHEMATIC_ENABLED = true;

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;
@@ -34,8 +33,9 @@ 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 java.util.Arrays;
 import java.util.Iterator;
 import java.util.Set;
 
@@ -44,6 +44,8 @@ import java.util.Set;
  */
 public abstract class SquarePlotManager extends GridPlotManager {
 
+    private static final Logger logger = LoggerFactory.getLogger(SquarePlotManager.class);
+
     private final SquarePlotWorld squarePlotWorld;
 
     public SquarePlotManager(SquarePlotWorld squarePlotWorld) {
@@ -226,11 +228,9 @@ 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.debug( "Invalid plot / road width in settings.yml for world: {}", squarePlotWorld
-                "Invalid plot / road width in settings.yml for world: " + squarePlotWorld
+                .getWorldName());
-                    .getWorldName());
         }
         return null;
     }

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

@@ -25,13 +25,16 @@
  */
 package com.plotsquared.core.generator;
 
-import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.plot.PlotId;
 import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public abstract class SquarePlotWorld extends GridPlotWorld {
 
+    private static final Logger logger = LoggerFactory.getLogger(SquarePlotWorld.class);
+
     public int PLOT_WIDTH = 42;
     public int ROAD_WIDTH = 7;
     public int ROAD_OFFSET_X = 0;
@@ -44,7 +47,7 @@ public abstract class SquarePlotWorld extends GridPlotWorld {
 
     @Override public void loadConfiguration(ConfigurationSection config) {
         if (!config.contains("plot.height")) {
-            PlotSquared.debug(" - &cConfiguration is null? (" + config.getCurrentPath() + ')');
+            logger.debug(" - 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/plot/PlotInventory.java

@@ -29,9 +29,13 @@ import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.util.InventoryUtil;
 import lombok.NonNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class PlotInventory {
 
+    private static final Logger logger = LoggerFactory.getLogger(PlotInventory.class);
+
     private static final String META_KEY = "inventory";
     public final PlotPlayer<?> player;
     public final int size;
@@ -79,8 +83,8 @@ public class PlotInventory {
             return;
         }
         if (hasPlotInventoryOpen(player)) {
-            PlotSquared.debug(String.format("Failed to open plot inventory for %s "
+            logger.debug("Failed to open plot inventory for {} because"
-                + "because the player already has an open plot inventory", player.getName()));
+                + " the player already has an open plot inventory", player.getName());
         } else {
             this.open = true;
             setPlotInventoryOpen(player, this);

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

@@ -47,6 +47,8 @@ import com.plotsquared.core.util.StringMan;
 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 java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -62,6 +64,8 @@ import java.util.concurrent.ConcurrentLinkedDeque;
 
 public class ExpireManager {
 
+    private final Logger logger = LoggerFactory.getLogger(ExpireManager.class);
+
     public static ExpireManager IMP;
     private final ConcurrentHashMap<UUID, Long> dates_cache;
     private final ConcurrentHashMap<UUID, Long> account_age_cache;
@@ -79,7 +83,7 @@ public class ExpireManager {
     }
 
     public void addTask(ExpiryTask task) {
-        PlotSquared.debug("Adding new expiry task!");
+        logger.debug("Adding new expiry task!");
         this.tasks.add(task);
     }
 
@@ -425,15 +429,13 @@ public class ExpireManager {
         PlotAnalysis changed = plot.getComplexity(null);
         int changes = changed == null ? 0 : changed.changes_sd;
         int modified = changed == null ? 0 : changed.changes;
-        PlotSquared.debug(
+        logger.debug("Deleted expired plot: {} | User: {} | Delta: {}/{} | Connected: {}",
-            "$2[&5Expire&dManager$2] &cDeleted expired plot: " + plot + " User:" + plot.getOwner()
+            plot, plot.getOwner(), changes, modified, StringMan.getString(plots));
-                + " Delta:" + changes + "/" + modified + " Connected: " + StringMan
+        logger.debug(" - Area: {}", plot.getArea());
-                .getString(plots));
-        PlotSquared.debug("$4 - Area: " + plot.getArea());
         if (plot.hasOwner()) {
-            PlotSquared.debug("$4 - Owner: " + plot.getOwner());
+            logger.debug(" - Owner: {}", plot.getOwner());
         } else {
-            PlotSquared.debug("$4 - Owner: Unowned");
+            logger.debug(" - Owner: Unowned");
         }
     }
 

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

@@ -156,7 +156,7 @@ 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");
+            logger.debug("Write task cannot be null");
             TaskManager.runTask(whenDone);
             return;
         }
@@ -218,7 +218,6 @@ public class MainUtil {
                     content = scanner.next().trim();
                 }
                 if (!content.startsWith("<")) {
-                    PlotSquared.debug(content);
                 }
                 int responseCode = ((HttpURLConnection) con).getResponseCode();
                 if (responseCode == 200) {
@@ -899,7 +898,7 @@ public class MainUtil {
                     if (file.isDirectory()) {
                         deleteDirectory(file);
                     } else {
-                        PlotSquared.debug("Deleting file: " + file + " | " + file.delete());
+                        logger.debug("Deleting file: {} | {}", file, file.delete());
                     }
                 }
             }

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

@@ -61,6 +61,8 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import org.jetbrains.annotations.NotNull;
 import org.json.JSONArray;
 import org.json.JSONException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
@@ -93,6 +95,8 @@ import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
 
 public abstract class SchematicHandler {
+
+    private static final Logger logger = LoggerFactory.getLogger(SchematicHandler.class);
     public static SchematicHandler manager;
 
     private boolean exportAll = false;
@@ -187,7 +191,6 @@ public abstract class SchematicHandler {
                 whenDone.value = false;
             }
             if (schematic == null) {
-                PlotSquared.debug("Schematic == null :|");
                 TaskManager.runTask(whenDone);
                 return;
             }
@@ -203,12 +206,7 @@ public abstract class SchematicHandler {
                     + 1) < WIDTH) || (
                     (region.getMaximumPoint().getZ() - region.getMinimumPoint().getZ() + zOffset
                         + 1) < LENGTH) || (HEIGHT > 256)) {
-                    PlotSquared.debug("Schematic is too large");
+                    logger.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;
                 }
@@ -405,8 +403,6 @@ 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;
@@ -432,14 +428,12 @@ 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;
         }
@@ -464,7 +458,6 @@ 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/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(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.debug("Paste too big > size: {}MB", size / 1_000_000);
             }
             throw new IllegalStateException(String
                 .format("Server returned status: %d %s", httpURLConnection.getResponseCode(),