diff --git a/Essentials/src/com/earth2me/essentials/Essentials.java b/Essentials/src/com/earth2me/essentials/Essentials.java
index 707a62a17..9ba2c696a 100644
--- a/Essentials/src/com/earth2me/essentials/Essentials.java
+++ b/Essentials/src/com/earth2me/essentials/Essentials.java
@@ -65,7 +65,7 @@ import org.yaml.snakeyaml.error.YAMLException;
 
 public class Essentials extends JavaPlugin implements IEssentials
 {
-	public static final int BUKKIT_VERSION = 2420;
+	public static final int BUKKIT_VERSION = 2455;
 	private static final Logger LOGGER = Logger.getLogger("Minecraft");
 	private transient ISettings settings;
 	private final transient TNTExplodeListener tntListener = new TNTExplodeListener(this);
diff --git a/Essentials/src/com/earth2me/essentials/OfflinePlayer.java b/Essentials/src/com/earth2me/essentials/OfflinePlayer.java
index 1432adee7..571873384 100644
--- a/Essentials/src/com/earth2me/essentials/OfflinePlayer.java
+++ b/Essentials/src/com/earth2me/essentials/OfflinePlayer.java
@@ -1111,4 +1111,10 @@ public class OfflinePlayer implements Player
 	{
 		throw new UnsupportedOperationException("Not supported yet.");
 	}
+
+	@Override
+	public void giveExpLevels(int i)
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
 }
diff --git a/Essentials/src/com/earth2me/essentials/craftbukkit/FakeWorld.java b/Essentials/src/com/earth2me/essentials/craftbukkit/FakeWorld.java
index 1ac37e459..7239ea475 100644
--- a/Essentials/src/com/earth2me/essentials/craftbukkit/FakeWorld.java
+++ b/Essentials/src/com/earth2me/essentials/craftbukkit/FakeWorld.java
@@ -699,4 +699,40 @@ public class FakeWorld implements World
 	{
 		throw new UnsupportedOperationException("Not supported yet.");
 	}
+
+	@Override
+	public int getAmbientSpawnLimit()
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
+
+	@Override
+	public void setAmbientSpawnLimit(int i)
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
+
+	@Override
+	public String[] getGameRules()
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
+
+	@Override
+	public String getGameRuleValue(String string)
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
+
+	@Override
+	public boolean setGameRuleValue(String string, String string1)
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
+
+	@Override
+	public boolean isGameRule(String string)
+	{
+		throw new UnsupportedOperationException("Not supported yet.");
+	}
 }
diff --git a/lib/bukkit.jar b/lib/bukkit.jar
index cd58e483b..4b282ee2b 100644
Binary files a/lib/bukkit.jar and b/lib/bukkit.jar differ
diff --git a/lib/craftbukkit.jar b/lib/craftbukkit.jar
index 5923a839b..beff3e4a8 100644
Binary files a/lib/craftbukkit.jar and b/lib/craftbukkit.jar differ