FixedHostDiscovery implements HostDiscovery { @Override public void removeListener(EndPointListener listener) { } FixedHostDiscovery(ServiceEndPoint... endPoints);  FixedHostDiscovery(Iterable<ServiceEndPoint> endPoints); @Override Iterable<ServiceEndPoint> getHosts(); @Override void addListener(EndPointListener listener); @Override void removeListener(EndPointListener listener); @Override void close();  }
@Test public void testRemoveListener() { _discovery.removeListener(null); }