--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/ThreadGroup/Stop.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright 1999 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 4176355
+ * @summary Stopping a ThreadGroup that contains the current thread has
+ *          unpredictable results.
+ */
+
+public class Stop implements Runnable {
+    private static Thread first=null;
+    private static Thread second=null;
+    private static ThreadGroup group = new ThreadGroup("");
+
+    Stop() {
+        Thread thread = new Thread(group, this);
+        if (first == null)
+            first = thread;
+        else
+            second = thread;
+
+        thread.start();
+    }
+
+    public void run() {
+        while (true) {
+            try {
+                Thread.sleep(1000); // Give other thread a chance to start
+                if (Thread.currentThread() == first)
+                    group.stop();
+            } catch(InterruptedException e){
+            }
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        for (int i=0; i<2; i++)
+            new Stop();
+        Thread.sleep(3000);
+        boolean failed = second.isAlive();
+        first.stop(); second.stop();
+        if (failed)
+            throw new RuntimeException("Failure.");
+    }
+}