1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /* @test

    25  * @bug 8022853

    26  * @library /testlibrary

    27  * @modules java.base/jdk.internal.misc

    28  * @build jdk.test.lib.*

    29  * @run main GetKlassPointerGetJavaMirror

    30  */

    31 

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

    33 

    34 import jdk.test.lib.*;

    35 import jdk.internal.misc.Unsafe;

    36 

    37 public class GetKlassPointerGetJavaMirror {

    38 

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

    40         Unsafe unsafe = Utils.getUnsafe();

    41         Object o = new GetKlassPointerGetJavaMirror();

    42         final long metaspaceKlass = unsafe.getKlassPointer(o);

    43         Class<?> c = unsafe.getJavaMirror(metaspaceKlass);

    44         assertEquals(o.getClass(), c);

    45     }

    46 

    47 }