--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/DefaultJungle.java	Sun Aug 31 03:30:03 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/DefaultJungle.java	Sun Aug 31 07:46:30 2014 +0900
@@ -11,7 +11,6 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNodePath;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultTreeEditor;
-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.DefaultChangeSet;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeContext;
@@ -20,24 +19,24 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
 
-public class DefaultJungle<T extends TreeNode<T>> implements Jungle<T>
+public class DefaultJungle implements Jungle
 {
 	private Journal journal;
-	private ConcurrentHashMap<String,JungleTree<T>> trees;
+	private ConcurrentHashMap<String,JungleTree> trees;
 	private String uuid;
 	private TreeEditor editor;
 	
-	public static <T extends TreeNode<T>>void main(String _args[])
+	public static void main(String _args[])
 	{
-		DefaultJungle<T> j = new DefaultJungle(null,"hoge",new DefaultTreeEditor(new DefaultTraverser()));
-		JungleTree<T> t = j.createNewTree("fuga");
+		DefaultJungle j = new DefaultJungle(null,"hoge",new DefaultTreeEditor(new DefaultTraverser()));
+		JungleTree t = j.createNewTree("fuga");
 		
-		JungleTreeEditor<T> e1 = t.getTreeEditor();
-		JungleTreeEditor<T> e2 = t.getTreeEditor();
+		JungleTreeEditor e1 = t.getTreeEditor();
+		//JungleTreeEditor e2 = t.getTreeEditor();
 		
 		DefaultNodePath root = new DefaultNodePath();
 		
-		Either<Error,JungleTreeEditor<T>> either = e1.addNewChildAt(root,0);
+		Either<Error,JungleTreeEditor> either = e1.addNewChildAt(root,0);
 		e1 = either.b();
 		either = e1.addNewChildAt(root.add(0),0);
 		e1 = either.b();
@@ -47,19 +46,19 @@
 	public DefaultJungle(Journal _journal,String _uuid,TreeEditor _editor)
 	{
 		journal = new NullJournal();
-		trees = new ConcurrentHashMap<String,JungleTree<T>>();
+		trees = new ConcurrentHashMap<String,JungleTree>();
 		uuid = _uuid;
 		editor = _editor;
 	}
 
 	@Override
-	public JungleTree<T> getTreeByName(String _name)
+	public JungleTree getTreeByName(String _name)
 	{
 		return trees.get(_name);
 	}
 
 	@Override
-	public JungleTree<T> createNewTree(final String _name)
+	public JungleTree createNewTree(final String _name)
 	{
 		ChangeList list = new ChangeList(){
 			@Override
@@ -78,7 +77,7 @@
 		};
 		
 		DefaultTreeNode root = new DefaultTreeNode();
-		ChangeSet<T> set = new DefaultChangeSet(root,null,list,uuid,_name,0);
+		ChangeSet set = new DefaultChangeSet(root,null,list,uuid,_name,0);
 		DefaultTreeContext<DefaultTreeNode> tc = new DefaultTreeContext<DefaultTreeNode>(root,set);
 		JungleTree newTree = new DefaultJungleTree<DefaultTreeNode>(tc,uuid,journal.getWriter(),editor);
 		if(trees.putIfAbsent(_name,newTree) != null){