--- a/src/main/java/alice/jungle/persistent/PersistentJungle.java	Wed Jul 30 22:17:23 2014 +0900
+++ b/src/main/java/alice/jungle/persistent/PersistentJungle.java	Mon Sep 01 00:04:32 2014 +0900
@@ -4,12 +4,12 @@
 import java.util.concurrent.ConcurrentHashMap;
 
 import fj.data.List;
-
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.Jungle;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.JungleTree;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeList;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.TreeOperation;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeContext;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeNode;
@@ -52,8 +52,8 @@
 				return _name;
 			}
 		};
-		DefaultTreeNode root = new DefaultTreeNode();
-		ChangeSet set = new PersistentChangeSet(root.getAsNode(),null,list,uuid,_name,0);
+		TreeNode root = new DefaultTreeNode();
+		ChangeSet set = new PersistentChangeSet(root,null,list,uuid,_name,0);
 		DefaultTreeContext<DefaultTreeNode> tc = new DefaultTreeContext<DefaultTreeNode>(root,set);
 		JungleTree newTree = new PersistentJungleTree<DefaultTreeNode>(_name, tc,uuid, journal.getWriter(),editor);
 		if(trees.putIfAbsent(_name,newTree) != null){