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From Martin Gainty <mgai...@hotmail.com>
Subject RE: ClassCastException org.apache.jasper.runtime.ELContextImpl cannot be cast to org.apache.jasper.el.ELContextImpl
Date Tue, 21 Aug 2012 22:55:51 GMT

If you implement a VM Profiler such as 
http://visualvm.java.net/eclipse-launcher.html#installation

and send the profiler output to app1.output 
then stop app1 and stop tomcat
restart tomcat then reference app2 and send the profiler output to app2.output

then diff the 2..

can you confirm from the output that app1 is pulling classes from app2/WEB-INF/classes
can you confirm from the output that app2 is pulling classes from app1/WEB-INF/classes
?
Martin Gainty 
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> Subject: RE: ClassCastException org.apache.jasper.runtime.ELContextImpl cannot be cast
to org.apache.jasper.el.ELContextImpl
> Date: Wed, 22 Aug 2012 10:35:10 +1200
> From: Dale_Ogilvie@trimble.com
> To: users@tomcat.apache.org
> 
> >-----Original Message-----
> >From: Pid * [mailto:pid@pidster.com] 
> >
> >Where is that dependency JSP jar from?
> >It should not be in WEB-INF/lib if it's providing JSP functionality.
> >
> >
> >p
> 
> The manifest for the jar says "JSP 2.1 Jasper implementation from Glassfish", and yeah
it was bad practice for maven to include that in our app2 for us.
> 
> Regardless of where the jar is coming from, it still seems bad to me that Tomcat will
respond to my request of app1 by loading a class from app2/WEB-INF/lib/jsp-2.1-6.1.14.jar.
> 
> I think Mark Thomas was saying that Tomcat was preventing loading of classes outside
of Tomcat and app1, the vm classloading output seems to suggest otherwise.
> 
> Dale
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