--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/bbs/App.java	Sat Feb 09 19:43:46 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/bbs/App.java	Thu Feb 28 16:15:40 2013 +0900
@@ -15,10 +15,10 @@
     public static void main( String[] args ) throws Exception
     {
     	BulletinBoard cassaBBS = null;
-    	if(args[0].equals("cassandra")){
+    	if(args.length == 0){
+    		cassaBBS = new JungleBulletinBoard();
+    	}else{
     		cassaBBS = new CassandraBulletinBoard("test-cluster","localhost:9160","cassaBBS2");
-    	}else if(args[0].equals("jungle")){
-    		cassaBBS = new JungleBulletinBoard();
     	}
     	
     	

--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/bbs/JungleBulletinBoard.java	Sat Feb 09 19:43:46 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/bbs/JungleBulletinBoard.java	Thu Feb 28 16:15:40 2013 +0900
@@ -101,57 +101,61 @@
 			throw new IllegalStateException();
 		}
 		
-		Node node = tree.getRootNode();
-		int size = node.getChildren().size();
-		DefaultNodePath path = new DefaultNodePath();
+		JungleTreeEditor editor;
+		do{
+			Node node = tree.getRootNode();
+			int size = node.getChildren().size();
+			DefaultNodePath path = new DefaultNodePath();
 		
-		JungleTreeEditor editor = tree.getTreeEditor();
-		Either<Error, JungleTreeEditor> either = editor.addNewChildAt(path,size);
-		if(either.isA()){
-			throw new IllegalStateException();
-		}
-		editor = either.b();
+			editor = tree.getTreeEditor();
+			Either<Error, JungleTreeEditor> either = editor.addNewChildAt(path,size);
+			if(either.isA()){
+				throw new IllegalStateException();
+			}
+			editor = either.b();
 		
-		NodeEditor e = new NodeEditor(){
-			public <T extends EditableNode<T>> Either<Error, T> edit(T _e){
-				_e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b();
-				_e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b();
-				_e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b();
-				return DefaultEither.newB(_e);
+			NodeEditor e = new NodeEditor(){
+				public <T extends EditableNode<T>> Either<Error, T> edit(T _e){
+					_e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b();
+					_e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b();
+					_e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b();
+					return DefaultEither.newB(_e);
+				}
+			};
+		
+			path = path.add(size);
+			either = editor.edit(path,e);
+			if(either.isA()){
+				throw new IllegalStateException();
 			}
-		};
-		
-		path = path.add(size);
-		either = editor.edit(path,e);
-		if(either.isA()){
-			throw new IllegalStateException();
-		}
-		editor = either.b();
-		editor.success();
+			editor = either.b();
+		}while(editor.success().isA());
 	}
 
 	public void editMessage(String _board,String _uuid,final String _author,final String _message,final String _editKey)
 	{
-		DefaultNodePath path = new DefaultNodePath();
-		path = path.add(Integer.parseInt(_uuid));
+		JungleTreeEditor editor = null;
+		do{
+			DefaultNodePath path = new DefaultNodePath();
+			path = path.add(Integer.parseInt(_uuid));
 		
-		JungleTree tree = jungle.getTreeByName(_board);
-		JungleTreeEditor editor = tree.getTreeEditor();
-		NodeEditor e = new NodeEditor(){
-			public <T extends EditableNode<T>> Either<Error, T> edit(T _e){
-				_e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b();
-				_e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b();
-				_e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b();
+			JungleTree tree = jungle.getTreeByName(_board);
+			editor = tree.getTreeEditor();
+			NodeEditor e = new NodeEditor(){
+				public <T extends EditableNode<T>> Either<Error, T> edit(T _e){
+					_e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b();
+					_e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b();
+					_e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b();
 				return DefaultEither.newB(_e);
+				}
+			};
+		
+			Either<Error,JungleTreeEditor> either = editor.edit(path,e);
+			if(either.isA()){
+				throw new IllegalStateException();
 			}
-		};
-		
-		Either<Error,JungleTreeEditor> either = editor.edit(path,e);
-		if(either.isA()){
-			throw new IllegalStateException();
-		}
-		editor = either.b();
-		editor.success();
+			editor = either.b();
+		}while(editor.success().isA());
 	}
 
 	public Iterable<BoardMessage> getMessages(String _boardName)