public void start() { logger.finest( "We are asked to start and completelyShutdown is " + String.valueOf(completelyShutdown)); if (completelyShutdown) return; nodeEngine.start(); connectionManager.start(); if (config.getNetworkConfig().getJoin().getMulticastConfig().isEnabled()) { final Thread multicastServiceThread = new Thread( hazelcastInstance.threadGroup, multicastService, getThreadNamePrefix("MulticastThread")); multicastServiceThread.start(); } setActive(true); if (!completelyShutdown) { logger.finest("Adding ShutdownHook"); Runtime.getRuntime().addShutdownHook(shutdownHookThread); } logger.finest("finished starting threads, calling join"); join(); int clusterSize = clusterService.getSize(); if (config.getNetworkConfig().isPortAutoIncrement() && address.getPort() >= config.getNetworkConfig().getPort() + clusterSize) { StringBuilder sb = new StringBuilder("Config seed port is "); sb.append(config.getNetworkConfig().getPort()); sb.append(" and cluster size is "); sb.append(clusterSize); sb.append(". Some of the ports seem occupied!"); logger.warning(sb.toString()); } try { managementCenterService = new ManagementCenterService(hazelcastInstance); } catch (Exception e) { logger.warning("ManagementCenterService could not be constructed!", e); } initializer.afterInitialize(this); }