/*

 * Copyright (c) 2006, 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.

 */

/*

 * @test

 * @bug     6387919

 * @summary Confirm ThreadLocal.set() usage is not a side effect of get()

 * @author  Pete Soper

 */

public class ImmutableLocal

{

    /**

     * {@link ThreadLocal} guaranteed to always return the same reference.

     */

        public void set(final Object value) {

            throw new RuntimeException("ImmutableThreadLocal set called");

        }

        // force override

    }

    private static final ThreadLocal cache = new ImmutableThreadLocal() {

        public Object initialValue() {

            return Thread.currentThread().getName();

        }

    };

    public static void main(final String[] args) {

        System.out.println("cache.get() = " + cache.get());

    }

}