On a fresh reboot of JBoss works perfectly. My servlet can access a session bean fine.

I'm redeploying my exploded project by touching my.ear/META-INF/application.xml. The problem happens even when nothing has changed.

When I redeploy I get this error when my servlet is trying to access a session bean home interface:

java.lang.ClassCastException
at com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:293)
at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134)
...

The same thing happens with my junit tests, and even the CMP example which comes with the paid for JBoss Documentation.

What is the problem? I see reports of a similar nature in lots of postings but nothing I try helps.