--- a/src/main/java/app/bbs/NetworkJungleBulletinBoard.java	Sat Jan 11 08:55:29 2014 +0900
+++ b/src/main/java/app/bbs/NetworkJungleBulletinBoard.java	Sat Jan 11 09:08:41 2014 +0900
@@ -73,12 +73,18 @@
 			throw new IllegalStateException();
 		}
 		editor = either.b();
+		final long timestamp = new Date().getTime();
+		ByteBuffer tBuffer = ByteBuffer.allocate(16);
+		either = editor.putAttribute(root.add(0),"timestamp", tBuffer.putLong(timestamp));		
+		if(either.isA()){
+			throw new IllegalStateException();
+		}
+
+		editor = either.b();
 		Either<Error,JungleTreeEditor> result = editor.success();
 		if(result.isA()){
 			throw new IllegalStateException();
 		}
-		final long timestamp = new Date().getTime();
-
 		
 		tree = jungle.getTreeByName(_name);
 		editor = tree.getTreeEditor();
@@ -93,8 +99,8 @@
 				_e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b();
 				_e = _e.getAttributes().put("mes",ByteBuffer.wrap(_initMessage.getBytes())).b();
 				_e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b();
-				ByteBuffer tBuffer = ByteBuffer.allocate(16);
-				_e = _e.getAttributes().put("timestamp",tBuffer.putLong(timestamp)).b();
+				ByteBuffer t2Buffer = ByteBuffer.allocate(16);
+				_e = _e.getAttributes().put("timestamp",t2Buffer.putLong(timestamp)).b();
 				return DefaultEither.newB(_e);
 			}
 		};