Using mutiple resoucebundle files does not seem to work.
I've used the following configuration in struts-config.xml
<message-resources
factory="com.oroad.stxx.util.PropertyMessageResourcesF
actory" parameter="resources.useradmin" />
<message-resources
factory="com.oroad.stxx.util.PropertyMessageResourcesF
actory" parameter="resources.code" key="testing"/>
Only properties from the first bundle apears in the xml
output.