This fixed it in jboss-classloading.xml
<classloading xmlns="urn:jboss:classloading:1.0"
parent-first="false"
domain="DefaultDomain"
top-level-classloader="true"
parent-domain="Ignored"
export-all="NON_EMPTY"
import-all="true">
</classloading>
thanks to
http://thoughts.inphina.com/2010/09/02/classloading-isolation-issues-with-jboss-5-1/