[JBPM] CommandExecutorThread的ThreadDeath问题

arsuner

[JBPM] CommandExecutorThread的ThreadDeath问题

ERROR [CommandExecutorThread] org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.ThreadDeath

jbpm 的 CommandExecutorThread线程在web应用重启部署后(不是服务器的重启),前一个应用的线程并没有停止,而变成了没有引用的"野"线程.线程继续运行的时候就会报ThreadDeath的异常.

解决方法:
1.修改org.jbpm.msg.command.CommandExecutorThread
添加控制线程执行的变量:
private boolean keepRunning = true;
/**
  * @return Returns the keepRunning.
  */
public boolean isKeepRunning()
{
  return keepRunning;
}
/**
  * @param keepRunning The keepRunning to set.
  */
public void setKeepRunning(boolean keepRunning)
{
  this.keepRunning = keepRunning;
}
修改run方法:
修改前
==========================================
public void run()
{
  // while not interrupted...
  try
  {
   while (true)
   {
修改后
==========================================
public void run()
{
  // while not interrupted...
  try
  {
   while (keepRunning)
   {
2.在servlet中启动线程时,或直接启动线程,应当应用undeploy的时候停止线程.[重启应用服务器就不用关心了:)]
如果在servlet中:
public void destroy()
{
  schedulerThread.setKeepRunning(false);
  commandExecutorThread.setKeepRunning(false);
  
  super.destroy();
}

OK,everything is in order:)


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/13917/showart_77688.html