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Asked: 2026-05-15T17:04:38+00:00

for my webapp I use Quartz. When I deploy the app all is ok.

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for my webapp I use Quartz. When I deploy the app all is ok. When I undeploy the app, the Quartz thread is not destroyed.

Log is:

INFO: Stopping service Catalina

SEVERE: The web application
[/example] appears to have started a
thread named
[DefaultQuartzScheduler_Worker-1] but
has failed to stop it. This is very
likely to create a memory leak. Jul
12, 2010 6:30:40 PM
org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads

Anyone can tell me how I can force the destroy action for those threads?

Thanks,

Tommaso

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1 Answer

  1. Editorial Team

    How are you starting Quartz?

    Assuming you are not using a convenient wrapper like Spring, you probably want to be using a <listener> in your application’s web.xml so that Quartz can be notified of the application start and shutdown.

    See QuartzInitializerListener or QuartzInitializerServlet for instance.

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