/** * Removes the query from protocol provider service presence listeners. * * @param pps the protocol provider service. */ public void removeQueryFromProviderPresenceListeners(ProtocolProviderService pps) { OperationSetMultiUserChat opSetMUC = pps.getOperationSet(OperationSetMultiUserChat.class); if (opSetMUC != null) { opSetMUC.removePresenceListener(this); } }