diff --git a/js/rhino/toolsrc/org/mozilla/javascript/tools/debugger/test.js b/js/rhino/toolsrc/org/mozilla/javascript/tools/debugger/test.js
new file mode 100644
index 000000000000..563b34120989
--- /dev/null
+++ b/js/rhino/toolsrc/org/mozilla/javascript/tools/debugger/test.js
@@ -0,0 +1,133 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is a test file for Rhino debugger.
+ *
+ * The Initial Developer of the Original Code is
+ * RUnit Software AS.
+ * Portions created by the Initial Developer are Copyright (C) 2003
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Igor Bukanov, igor@mir2.org
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+
+// Test file for Rhino debugger 
+
+
+
+var x = 10;
+
+function sleep(millis)
+{
+	java.lang.Thread.sleep(millis);
+}
+
+function thread_loop_body(counter, thread_title)
+{
+	print("["+counter+"] Thread '"+thread_title);
+	sleep(1000);
+}
+
+function make_thread(thread_title, repeat_count, loop_body)
+{
+	var Thread = java.lang.Thread;
+	var thread = new Thread(function() {
+		for (var i = 0; i < repeat_count; ++i) {
+			loop_body(i, thread_title);
+		}
+		print("[DONE] Thread "+thread_title);
+	});
+	return thread;
+}
+
+function make_thread2(thread_title, repeat_count)
+{
+	var Thread = java.lang.Thread;
+	var thread = new Thread(function() {
+		create_gui();
+		for (var i = 0; i < repeat_count; ++i) {
+			loop_body(i, thread_title);
+		}
+		print("[DONE] Thread "+thread_title);
+	});
+	return thread;
+}
+
+
+var loop_body_text = thread_loop_body.toSource(0);
+var loop_body;
+eval("loop_body = "+loop_body_text);
+
+var thread1 = make_thread("A", 5, loop_body);
+var thread2 = make_thread("B", 5, loop_body);
+var thread3 = make_thread2("C", 5, loop_body);
+
+thread1.start();
+thread2.start();
+thread3.start();
+
+thread1.join();
+thread2.join();
+thread3.join();
+
+
+function create_gui()
+{
+    var swing = Packages.javax.swing;
+    var awt = Packages.java.awt;
+    
+    var frame = new swing.JFrame("SwingApplication");
+    var labelPrefix = "Number of button clicks: ";
+    var numClicks = 0;
+    var label = new swing.JLabel(labelPrefix + numClicks);
+    var button = new swing.JButton("Click Me!");
+    button.mnemonic = Packages.java.awt.event.KeyEvent.VK_I;
+    button.addActionListener(function() {
+	numClicks += 1;
+	label.setText(labelPrefix + numClicks);
+    });
+    label.setLabelFor(button);
+
+    var pane = new swing.JPanel();
+    pane.setLayout(new awt.GridLayout(0, 1));
+    pane.add(button);
+    pane.add(label);
+
+    frame.getContentPane().add(pane, awt.BorderLayout.CENTER);
+    frame.addWindowListener(function(event, methodName) {
+    	print(event + " "+methodName);
+	if (methodName == "windowClosing") {     
+            java.lang.System.exit(0);
+	}
+    });
+
+    //Finish setting up the frame, and show it.
+    frame.pack();
+    frame.setVisible(true);
+
+}
+