### Question:
OmitSpecimenRecursionHandler implements RecursionHandler { @Override public Object handleRecursiveRequest(Object request, List<Object> recordedRequests) { return null; }  @Override Object handleRecursiveRequest(Object request, List<Object> recordedRequests);  }### Answer:
@Test public void null_is_returned_when_request_is_handled() { OmitSpecimenRecursionHandler handler = new OmitSpecimenRecursionHandler(); Object result = handler.handleRecursiveRequest(null, null); assertNull(result); }