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/sun.misc
  28  * @run main GetKlassPointerGetJavaMirror
  29  */
  30 
  31 import static com.oracle.java.testlibrary.Asserts.*;
  32 
  33 import com.oracle.java.testlibrary.*;
  34 import sun.misc.Unsafe;
  35 
  36 public class GetKlassPointerGetJavaMirror {
  37 
  38     public static void main(String args[]) throws Exception {
  39         Unsafe unsafe = Utils.getUnsafe();
  40         Object o = new GetKlassPointerGetJavaMirror();
  41         final long metaspaceKlass = unsafe.getKlassPointer(o);
  42         Class<?> c = unsafe.getJavaMirror(metaspaceKlass);
  43         assertEquals(o.getClass(), c);
  44     }
  45 
  46 }