JBIDE-15304 - NullPointerExceptions in JAX-RS doesn't report what project is affected

Printing the current java element name and parent project in the existing call to the logger
if the element is known.
JBIDE-15508 - Incorrect problem marker when refactoring a custom Qualifier

Initial problem was that *any* annotation would be taken as a JAX-RS HTTP Method,
which was über wrong.
Added tests cases to verify.