Java example source code file (JDK-8013729.js)

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The JDK-8013729.js Java example source code

/*
 * 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-8013729: SwitchPoint invalidation not working over prototype chain
 *
 * @test
 * @run
 */

var a = {x: 1};
var b = Object.create(a, {y: {value: 2, configurable: true, writable: true}});
var c = Object.create(b);
var d = Object.create(c);

function p() {
    print(d.x);
    print(d.y);
}

p();

// Delete, then redefine properties
delete a.x;
delete b.y;
a.x = 10;
b.y = 20;

p();