Change "clone" to "deepClone", in line with PacketContainer.

ProtocolLib/src/main/java/com/comphenix/protocol/wrappers/nbt/NbtBase.java

@@ -48,5 +48,5 @@ public interface NbtBase<TType> {
 	 * Clone the current NBT tag.
 	 * @return The cloned tag.
 	 */
-	public abstract NbtBase<TType> clone();
+	public abstract NbtBase<TType> deepClone();
 }

ProtocolLib/src/main/java/com/comphenix/protocol/wrappers/nbt/NbtCompound.java

@@ -141,8 +141,8 @@ public class NbtCompound implements NbtWrapper<Map<String, NbtBase<?>>>, Iterabl
 	}
 	
 	@SuppressWarnings({"unchecked", "rawtypes"})
-	public NbtBase<Map<String, NbtBase<?>>> clone() {
-		return (NbtBase) container.clone();
+	public NbtBase<Map<String, NbtBase<?>>> deepClone() {
+		return (NbtBase) container.deepClone();
 	}
 	
 	/**

ProtocolLib/src/main/java/com/comphenix/protocol/wrappers/nbt/NbtElement.java

@@ -19,13 +19,13 @@ import com.google.common.base.Objects;
  */
 public class NbtElement<TType> implements NbtWrapper<TType> {	
 	// Structure modifier for the base class 
-	private static StructureModifier<Object> baseModifier;
+	private static volatile StructureModifier<Object> baseModifier;
 	
 	// For retrieving the current type ID
-	private static Method methodGetTypeID;
+	private static volatile Method methodGetTypeID;
 	
 	// For cloning handles
-	private static Method methodClone;
+	private static volatile Method methodClone;
 	
 	// Structure modifiers for the different NBT elements
 	private static StructureModifier<?>[] modifiers = new StructureModifier<?>[NbtType.values().length];
@@ -154,7 +154,7 @@ public class NbtElement<TType> implements NbtWrapper<TType> {
 	}
 	
 	@Override
-	public NbtBase<TType> clone() {
+	public NbtBase<TType> deepClone() {
 		if (methodClone == null) {
 			Class<?> base = MinecraftReflection.getNBTBaseClass();
 			

ProtocolLib/src/main/java/com/comphenix/protocol/wrappers/nbt/NbtList.java

@@ -176,8 +176,8 @@ public class NbtList<TType> implements NbtWrapper<List<NbtBase<TType>>>, Iterabl
 	}
 
 	@SuppressWarnings({"unchecked", "rawtypes"})
-	public NbtBase<List<NbtBase<TType>>> clone() {
-		return (NbtBase) container.clone();
+	public NbtBase<List<NbtBase<TType>>> deepClone() {
+		return (NbtBase) container.deepClone();
 	}
 	
 	public void add(NbtBase<TType> element) {