private Subtopic testProducerSubtopic(String subtopicSeparator, String subtopicString) { Subtopic subtopic = new Subtopic(subtopicString, subtopicSeparator); if (subtopic.containsSubtopicWildcard()) { ServiceException se = new ServiceException(); se.setMessage(10556, new Object[] {subtopicString}); throw se; } return subtopic; }