JRockIt Deleting JAR files - Error loading class

Hi there,
Customer is facing a very weird issue. Their application has an application that contains some EJBs and Web applications that, apparently for no reason, it starts to unload classes and delete JAR files and WAR files from the Weblogic's "extract" directory. If I bounce the application, everything starts working fine until a moment where the issues starts again.
I thought this was any kind of memory issue that was not allowing the JVM to free enough resource for loading the classes again after unloading it. But we gave enough memory for the JVM and it stills happening.
Thoughts? Any idea that might help us on troubleshooting is very welcome at this time.
Thanks in advance,
Davi

e-blade wrote:
Manifest-Version: 1.0
Class-Path: lib/tools.jar
Created-By: 1.6.0_18 (Sun Microsystems Inc.)
Main-Class: MainThe line in bold means: when app.jar will be run, it will look for additional classes in <same OS directory as itself>/lib/tools.jar.
It does not mean that it will look inside itself in the JAR directory /lib/tools.jar.

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