I try to shutdown tomcat,
it can shutdown the tomcat but there are still some process running that cannot be killed.
Then if i run tomcat again tehre will be two process of tomcat(catalina).
I do some debugging
- i delete the webchat from webapps -> all is normal , i can shutdown tomcat without any zombie process
and i found out that the file in WEB-INF/lib/webclient.jar is causing it