Fix a problem of generating stuff that shouldn't be generated

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1543070 13f79535-47bb-0310-9956-ffa450edef68
[CXF-5375] Use the javadoc plugin to help with better javadoc

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1543071 13f79535-47bb-0310-9956-ffa450edef68