@Override public void run() { final Address endpoint = getCallerAddress(); if (endpoint == null) { return; } final ClusterServiceImpl clusterService = getService(); final ILogger logger = getLogger(); final MemberImpl member = clusterService.getMember(endpoint); if (member == null) { logger.warning( "MasterConfirmation has been received from " + endpoint + ", but it is not a member of this cluster!"); OperationService operationService = getNodeEngine().getOperationService(); operationService.send(new MemberRemoveOperation(clusterService.getThisAddress()), endpoint); } else { if (clusterService.isMaster()) { clusterService.getClusterHeartbeatManager().acceptMasterConfirmation(member, timestamp); } else { logger.warning(endpoint + " has sent MasterConfirmation, but this node is not master!"); } } }