debug 项目自动停止在ThreadPoolExecutor类中的processWorkerExit(w,completedAbruptly)处

1、问题描述

            在eclipse或者集成eclipse的其他开发工具中，在tomcat中部署了项目debug模式启动项目，
      项目启动之后修改项目java源代码，eclipse会自动部署项目到tomcat中。
      但在tomcat自动重启时会自动停止到processWorkerExit(w, completedAbruptly);这一行代码上。
      
      
2、问题出现原因
   
            原因是因为在 java.util.concurrent.ThreadPoolExecutor类中的 runWorker(Worker w)方法上有未捕获的异常信息，源代码如下：
            可见在try之后并没有catch语句。而在eclipse的java debug模式中就有“遇到未捕获异常停止执行”的选项。只要不勾选该项就可以解决该问题了。

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final void runWorker(Worker w) {     Runnable task = w.firstTask;     w.firstTask =null;     booleancompletedAbruptly = true;     try{         while(task != null || (task = getTask()) != null) {             w.lock();             clearInterruptsForTaskRun();             try{                 beforeExecute(w.thread, task);                 Throwable thrown =null;                 try{                     task.run();                 }catch (RuntimeException x) {                     thrown = x;throw x;                 }catch (Error x) {                     thrown = x;throw x;                 }catch (Throwable x) {                     thrown = x;throw newError(x);                 }finally {                     afterExecute(task, thrown);                 }             }finally {                 task =null;                 w.completedTasks++;                 w.unlock();             }         }         completedAbruptly =false;     }finally {         processWorkerExit(w, completedAbruptly);     } }

　3、解决方案

           去掉java->debug->suspend execution on uncaught exceptions 选项钱的对勾就行了。如下图所示：