/*

 * Copyright 2011 SAP AG.  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 TestConjointAtomicArraycopy

 * @bug 7100935

 * @summary verify that oops are copied element-wise atomic

 * @run main/othervm -Xint TestConjointAtomicArraycopy

 * @run main/othervm -Xcomp -Xbatch TestConjointAtomicArraycopy

 * @author axel.siebenborn@sap.com

 */

public class TestConjointAtomicArraycopy {

  static volatile Object [] testArray = new Object [4];

  static short[] a1 = new short[8];

  static short[] a2 = new short[8];

  static short[] a3 = new short[8];

  static volatile boolean keepRunning = true;

  static void testOopsCopy() throws InterruptedException{

  }

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

    for (int i = 0; i < testArray.length; i++){

      testArray[i] = new String("A");

    }

    Thread writer = new Thread (new Runnable(){

      public void run(){

        for (int i = 0 ; i < 1000000; i++) {

          System.arraycopy(testArray, 1, testArray, 0, 3);

          testArray[2] = new String("a");

        }

      }

    });

    Thread reader = new Thread( new Runnable(){

      public void run(){

        while (keepRunning){

          String name = testArray[2].getClass().getName();

          if(!(name.endsWith("String"))){

            throw new RuntimeException("got wrong class name");

          }

        }

      }

    });

    keepRunning = true;

    reader.start();

    writer.start();

    writer.join();

    keepRunning = false;

    reader.join();

  }

}