/*

 * Copyright (c) 2010, 2013, 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.

 */

/**

 * JDK-8011893: JS Object builtin prototype is not thread safe

 *

 * @test

 * @run

 */

var a = {};

var thread = new java.lang.Thread(new java.lang.Runnable() {

    run: function() {

        print("Thread starts");

        for (var i = 0; i < 1000000; i++) {

            // Unsubscribe to builtin, subscribe to new proto

            var b = Object.create(a);

        }

        print("Thread done");

    }

});

print("Main starts");

thread.start();

for (var j = 0; j < 1000000; j++) {

    // Subscribe to builtin prototype.

    a = {};

}

thread.join();

print("Main done");