ProviderManager providerMgr = ProviderManager.getInstance();
providerMgr.addIQProvider("query", UserCreate.NAMESPACE, new UserCreate.Provider());
providerMgr.addIQProvider("query", UserDelete.NAMESPACE, new UserCreate.Provider());
providerMgr.addIQProvider("query", GroupCreate.NAMESPACE, new GroupCreate.Provider());
providerMgr.addIQProvider("query", GroupDelete.NAMESPACE, new GroupDelete.Provider());
providerMgr.addIQProvider("query", AddUserToGroup.NAMESPACE, new AddUserToGroup.Provider());
providerMgr.addIQProvider("query", RemoveUserFromGroup.NAMESPACE, new RemoveUserFromGroup.Provider());
providerMgr.addIQProvider("query", SessionCount.NAMESPACE, new SessionCount.Provider());