--- a/src/alice/jungle/transaction/NetworkTransactionManager.java	Mon Nov 11 19:06:56 2013 +0900
+++ b/src/alice/jungle/transaction/NetworkTransactionManager.java	Mon Nov 11 19:22:47 2013 +0900
@@ -29,17 +29,15 @@
 	private final ChangeListWriter writer;
 	private final String uuid;	
 	private final String treeName;	
-	private final String serverName;
 	
 	public NetworkTransactionManager(String _treeName, ChangeListWriter _writer,TreeContext<T> _tip,
-			AtomicReservableReference<TreeContext<T>> _repository,String _uuid, String _serverName)
+			AtomicReservableReference<TreeContext<T>> _repository,String _uuid)
 	{
 		repository = _repository;
 		tip = _tip;
 		writer = _writer;
 		uuid = _uuid;
 		treeName = _treeName;
-		serverName = _serverName;
 	}
 	
 	@Override
@@ -77,7 +75,7 @@
 			return DefaultEither.newA((Error)new DefaultError());
 		}
 		reservation.confirm();
-		TransactionManager<T> txManager = new NetworkTransactionManager<T>(treeName, writer, newContext, repository, uuid, serverName);
+		TransactionManager<T> txManager = new NetworkTransactionManager<T>(treeName, writer, newContext, repository, uuid);
 		return DefaultEither.newB(txManager);
 	}