jdk

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/*
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 * Copyright (c) 2012 SAP SE. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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public class TestPostFieldModification {
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  public String value;  // watch modification of value
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  public static void main(String[] args){
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    System.out.println("Start threads");
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    // this thread modifies the field 'value'
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    new Thread() {
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      TestPostFieldModification test = new TestPostFieldModification();
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      public void run() {
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        test.value="test";
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        for(int i = 0; i < 10; i++) {
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          test.value += new String("_test");
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        }
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      }
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    }.start();
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    // this thread is used to trigger a gc
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    Thread d = new Thread() {
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      public void run() {
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        while(true) {
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          try {
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            Thread.sleep(100);
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          } catch (InterruptedException e) {
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          }
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          System.gc();
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        }
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      }
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    };
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    d.setDaemon(true);
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    d.start();
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  }
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}
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