As MarkT suggested earlier, there is no such "Cache". If you are using
Tag/Cotext Pooling - it's a separate issue and you need to check tomcat's
documentation to check what options you need/don't need.

"The “-XX:+DisableAttachMechanism” JVM option does not work with Tomcat" -
what do you mean? Did it work before, but doesn't work now? or it has
"Never" worked?  or "Ignored"? Please be precise.


On 6 March 2018 at 14:09, Kenneth Taylor <>

> More troubleshooting revealed that our root context xml had been copied
> from another installation and had a wrong path in it.  However, I don’t
> think this was the problem since it was only a path to a Log4J config.  We
> re-installed Tomcat from scratch and it seems to have resolved it, but this
> is not good.  Why is Tomcat caching webapps?
> Also determined that Tomcat was not shutting down properly.  Our
> installation is deployed as a Windows Service.  Stopping the service did
> not stop Tomcat.  But the Service Console thinks it did stop, so when you
> restart it, another instance of Tomcat starts.  We are using a Java Service
> Wrapper if that makes any difference.
> Also found another problem.  The “-XX:+DisableAttachMechanism” JVM option
> does not work with Tomcat.  This is a security flaw.
> Thanks.
> Ken
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