@Override
  public JAXBContext getContext(Class<?> objectType) {
    return (types.contains(objectType)) ? context : null;
  }
Plumbing for hooking up Jersey's JSON entity body encoding and decoding support to JAXB. Modify
how the context is created (by using e.g. a different configuration builder) to control how JSON
is processed and created.
hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/provider/JAXBContextResolver.java