Problem solved.
I should have added the property additivity to category in xml file - now it works fine.
<category name="some.package" additivity="false">
View the original post :
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4257807#...
Reply to the post :
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...