org.jboss.seam.security.ruleBasedPermissionResolver exception

[atamhank]

Errors when deploying seam-gen generated application with add identity management option on Jboss server on unix platform
Jboss 5.1.0.GA + Seam 2.2.0.GA + Postgresql database.

The EAR file worked in windows environment but when moved to jboss on Unix gave this error

Session event listener threw exception
org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.security.ruleBasedPermissionResolver
...

java.lang.NoClassDefFoundError: org/drools/rule/builder/dialect/java/parser/JavaParser

Solution: that worked after a lot or research is move the mvel2.jar from EAR library directory to Jboss5/lib directory.

Hope some one finds it useful and saves a lot of head banging...
Aaditi.