Classloading Exception after redeploy

SourceForge Submitter: tjiiii .
I created an EJB-Entity Bean and a Stateless Session
Bean using the Entity Bean. This works fine.
Then I created a web-service.xml and deployed it in a
differnt archive (.wsr). This too works fine when using it
within a simple java application.
When I try to invoke the webservice from within a JSP
or Servlet it only works after starting JBoss or first time
deployment. After redeploying the webmodule which
contains the JSPs I get error:

java.lang.NullPointerException
at org.jboss.mx.loading.UnifiedClassLoader

See my files for further details.