Talking about facets I realize that I might have more than only the upper problem. I have never worked with jira before so you either have to wait until I have found out how it works or suggest another alternative. Meanwhile I can present the latter problem and another one which might or might not be related. First, here are the informations about my project facets with quite a lot warnings.
http://community.jboss.org/servlet/JiveServlet/downloadImage/105-5237-11162/450-473/project_facets.PNG
