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。            final void runWorker(Worker w) {         Runnable task = w.firstTask;        w.firstTask = null;        boolean completedAbruptly = 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 new Error(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：