/*

 * Copyright 2005 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     5025230

 * @summary Tests to see that a set nested in initialValue works OK

 * @author  Pete Soper

 */

public class InitialValue implements Runnable {

    static ThreadLocal<String> other;

    static boolean passed;

    public class MyLocal extends ThreadLocal<String> {

        String val;

        protected String initialValue() {

            other = new ThreadLocal<String>();

            // This should reuse the map that the containing get() created

            // or visa versa (i.e. instead of a second map being created).

            other.set("Other");

            return "Initial";

        }

    }

    public void run() {

        MyLocal l = new MyLocal();

        // This should pick up the initial value

        String s1 = l.get();

        // And this should pick up the other local in this thread's locals map

        String s2 = other.get();

        if ((s2 != null) && s2.equals("Other")) {

            // JMM guarantees this will be visible to

            // another thread joining with this thread's

            // termination: no need for this to be volatile.

            passed = true;

        }

    }

    public static void main(String[] args) {

        // Starting with Mustang the main thread already has an initialized

        // ThreadLocal map at this point, so test with a second thread.

        Thread t = new Thread(new InitialValue());

        t.start();

        try {

            t.join();

        } catch (InterruptedException e) {

            throw new RuntimeException("Test Interrupted: failed");

        }

        if (!passed) {

            throw new RuntimeException("Test Failed");

        }

    }

}