無法停止工作線程，可能會造成內存泄漏。

我正在使用實現ServletContextListener的servlet來啓動quartz scheduler實例@starup。在contextDestroyed（）方法中，調度程序實例已停止。無法停止工作線程，可能會造成內存泄漏。

@Override 
public void contextDestroyed(ServletContextEvent sce) { 
    try { 
     Scheduler scheduler = QuartzSchedulerUtil.getCurrentScheduler(); 
     scheduler.shutdown(true); 
     // Sleep for a bit so that we don't get any errors 
     Thread.sleep(1000); 
     Driver mySqlDriver = DriverManager.getDriver(hibernateConnectionUrl); 
     DriverManager.deregisterDriver(mySqlDriver); 
    } catch (SchedulerException ex) { 
     Logger.getLogger(QuartzServlet.class.getName()).log(Level.SEVERE, null, ex); 
    } catch (InterruptedException ex) { 
     Logger.getLogger(QuartzServlet.class.getName()).log(Level.SEVERE, null, ex); 
    } catch (SQLException ex) { 
     Logger.getLogger(QuartzServlet.class.getName()).log(Level.SEVERE, null, ex); 
    }   
    System.out.println("THE QUARTZ APP STOPPED"); 
}

但是，當部署應用程序時，我得到內存泄漏警告，指定該woker線程不停止。

Jul 10, 2012 3:46:12 PM org.apache.catalina.loader.WebappClassLoader 
clearReferencesThreads SEVERE: The web application [/latest-raisin] 
appears to have started a thread named [Timer-0] but has failed to 
stop it. This is very likely to create a memory leak. 

Jul 10, 2012 3:46:12 PM org.apache.catalina.loader.WebappClassLoader 
clearReferencesThreads SEVERE: The web application [/latest-raisin] 
appears to have started a thread named 
[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0] but 
has failed to stop it. This is very likely to create a memory leak. 

Jul 10, 2012 3:46:12 PM org.apache.catalina.loader.WebappClassLoader 
clearReferencesThreads SEVERE: The web application [/latest-raisin] 
appears to have started a thread named 
[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1] but 
has failed to stop it. This is very likely to create a memory leak. 

Jul 10, 2012 3:46:12 PM org.apache.catalina.loader.WebappClassLoader 
clearReferencesThreads SEVERE: The web application [/latest-raisin] 
appears to have started a thread named 
[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2] but 
has failed to stop it. This is very likely to create a memory leak.

我試着在帖子中提到的解決方案 - http://forums.terracotta.org/forums/posts/list/15/4341.page 但仍然得到嚴重的內存泄漏的警告時，器件的應用被卸載。

來源

2012-07-10 Sangram Anand

你確定'scheduler.shutdown（true）;'夠了嗎？也許不是石英問題，而是c3p0問題？在那裏也創建了一個計時器我也想：http://grepcode.com/file/repo1.maven.org/maven2/c3p0/c3p0/0.9.1/com/mchange/v2/async/ThreadPoolAsynchronousRunner.java – 2012-10-15 10:57:52

您可以設置org.quartz.scheduler.interruptJobsOnShutdown中的屬性來中斷作業，如果它們在您要關閉時仍在執行中。

來源

2013-10-13 14:43:17 bram

無法停止工作線程，可能會造成內存泄漏。

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