This is related to the issue #212616.
JAXB library should be updated along with JAX-WS.
Integrated into 'main-golden', will be available in build *201205220903* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Denis Anisimov <firstname.lastname@example.org>
Log: Fixes for BZ#212616 - Update JAX-WS library with recent version and BZ#212617 - Update JAXB library