view agent/test/race-condition/ClassPrepare/ThreadExhausted/testcase/Test.java @ 236:84f67233da38

Bug 3406: [TEST]Add race condition tests for core components Reviewed-by: yasuenag https://github.com/HeapStats/heapstats/pull/103
author KUBOTA Yuji <kubota.yuji@lab.ntt.co.jp>
date Thu, 22 Jun 2017 09:55:19 +0900
parents f421a4c6e7ea
children
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/*
 * Copyright (C) 2017 Nippon Telegraph and Telephone Corporation
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

import java.net.*;
import java.nio.file.*;
import java.lang.reflect.*;


public class Test{

  public static void runClassLoad(){
    try{
      ClassLoader loader = new URLClassLoader(new URL[]{
                     Paths.get(System.getProperty("java.class.path"), "dynload")
                          .toUri()
                          .toURL()});
      Class<?> target = loader.loadClass("DynLoad");
      Method targetMethod = target.getMethod("call");
      Object targetObj = target.newInstance();
      targetMethod.invoke(targetObj);
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }

  public static void runThreadleak(){
    Runnable waiter = () -> {
      try{
        synchronized(Test.class){
          Test.class.wait();
        }
      }
      catch(InterruptedException e){
        e.printStackTrace();
      }
    };

    while(true){
      try{
        (new Thread(waiter)).start();
      }
      catch(Throwable t){
        t.printStackTrace();
        System.exit(-1);
      }
    }
  }

  public static void main(String[] args){
    (new Thread(Test::runClassLoad)).start();
    (new Thread(Test::runThreadleak)).start();
  }
}