/*

 * Copyright (c) 2015, 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.

 *

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 */

/* @test

 * @bug 8022853

 * @library /testlibrary

 * @build jdk.test.lib.*

 * @run main GetUncompressedObject

 */

import static jdk.test.lib.Asserts.*;

import jdk.test.lib.*;

import sun.misc.Unsafe;

public class GetUncompressedObject {

    public static void main(String args[]) throws Exception {

        Unsafe unsafe = Utils.getUnsafe();

        // Allocate some memory and fill it with non-zero values.

        final int size = 32;

        final long address = unsafe.allocateMemory(size);

        unsafe.setMemory(address, size, (byte) 0x23);

        // The only thing we can do is check for null-ness.

        // So, store a null somewhere.

        unsafe.putAddress(address + 16, 0);

        Object nullObj = unsafe.getUncompressedObject(address + 16);

        if (nullObj != null) {

            throw new InternalError("should be null");

        }

    }

}