Enforce userdata save on player dispose.

Essentials/src/com/earth2me/essentials/EssentialsConf.java

@@ -320,6 +320,10 @@ public class EssentialsConf extends YamlConfiguration
 	{
 		try
 		{
+			if (pendingDiskWrites.get() > 0)
+			{
+				pendingDiskWrites.set(0);
+			}
 			Future<?> future = delayedSave(configFile);
 			if (future != null)
 			{
@@ -336,6 +340,14 @@ public class EssentialsConf extends YamlConfiguration
 		}
 	}
 
+	public synchronized void cleanup()
+	{
+		if (pendingDiskWrites.get() > 0)
+		{
+			forceSave();
+		}
+	}
+
 	private Future<?> delayedSave(final File file)
 	{
 		if (file == null)
@@ -350,7 +362,10 @@ public class EssentialsConf extends YamlConfiguration
 			return null;
 		}
 
-		pendingDiskWrites.incrementAndGet();
+		if (pendingDiskWrites.incrementAndGet() < 0)
+		{
+			pendingDiskWrites.set(1);
+		}
 
 		Future<?> future = EXECUTOR_SERVICE.submit(new WriteRunner(configFile, data, pendingDiskWrites));
 

Essentials/src/com/earth2me/essentials/User.java

@@ -242,6 +242,7 @@ public class User extends UserData implements Comparable<User>, IReplyTo, net.es
 		{
 			this.base = new OfflinePlayer(base.getUniqueId(), ess.getServer());
 		}
+		cleanup();
 	}
 
 	@Override

Essentials/src/com/earth2me/essentials/UserData.java

@@ -53,6 +53,11 @@ public abstract class UserData extends PlayerExtension implements IConf
 		ess.getUserMap().removeUser(this.getBase().getName());
 	}
 
+	public final void cleanup()
+	{
+		config.cleanup();
+	}
+
 	@Override
 	public final void reloadConfig()
 	{