WSMessageToClientManager extends MessageToClientManager<Session> { @Override public Map<String, Object> getSessionBeans(Session session) { return new HashMap<>(); }  @Override Map<String, Object> getSessionBeans(Session session);  }
@Test public void testGetSessionBeans() { System.out.println("getSessionBeans"); Session session = mock(Session.class); Map<String, Object> result = instance.getSessionBeans(session); assertThat(result).isNotNull(); assertThat(result).isEmpty(); }