--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/visualizer/View/src/com/sun/hotspot/igv/view/actions/ExpandPredecessorsAction.java	Tue Feb 07 22:41:09 2012 +0100
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.view.actions;
+
+import com.oracle.graal.visualizer.editor.EditorTopComponent;
+import org.openide.util.HelpCtx;
+import org.openide.util.actions.CallableSystemAction;
+
+/**
+ *
+ * @author Thomas Wuerthinger
+ */
+public final class ExpandPredecessorsAction extends CallableSystemAction {
+
+    @Override
+    public void performAction() {
+        EditorTopComponent editor = EditorTopComponent.getActive();
+        if (editor != null) {
+            //editor.expandPredecessors();
+        }
+    }
+
+    @Override
+    public String getName() {
+        return "Expand Above";
+    }
+
+    @Override
+    protected void initialize() {
+        super.initialize();
+    }
+
+    @Override
+    public HelpCtx getHelpCtx() {
+        return HelpCtx.DEFAULT_HELP;
+    }
+
+    @Override
+    protected boolean asynchronous() {
+        return false;
+    }
+}