JERSEY-2137: Unable to throw WAE from a @Transactional JAX-RS resource.
  -- added reproducible test that uses JPA to check rollback occurrence
  -- fixed in JAX-RS/CDI integration layer

Signed-off-by: Jakub Podlesak <jakub.podlesak@oracle.com>

Change-Id: If497de472e8e50db1c5df86f21411a666abc9d27