ejb moudle error and suggestion

The j2ee design is very cool! :)
I put ejb-jar.xml the the output path,just as classes/META-INF/ejb-jar.xml,but the module compile has the error: duplicate entry: META-INF/ejb-jar.xml
Suggestion :)
could you give j2ee code file template some xdoclet tag,and I think it't very helpful!