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/*
* Copyright (c) 2015, 2016, 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 8022853
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @run main GetUncompressedObject
*/
import static jdk.test.lib.Asserts.*;
import jdk.internal.misc.Unsafe;
public class GetUncompressedObject {
public static void main(String args[]) throws Exception {
Unsafe unsafe = Unsafe.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");
}
}
}
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