Author: rareddy Date: 2009-03-30 15:46:21 -0400 (Mon, 30 Mar 2009) New Revision: 662 Modified: trunk/server/src/main/java/com/metamatrix/server/JGroupsProvider.java Log: TEIID-101 Modified: trunk/server/src/main/java/com/metamatrix/server/JGroupsProvider.java =================================================================== --- trunk/server/src/main/java/com/metamatrix/server/JGroupsProvider.java 2009-03-30 17:54:19 UTC (rev 661) +++ trunk/server/src/main/java/com/metamatrix/server/JGroupsProvider.java 2009-03-30 19:46:21 UTC (rev 662) @@ -141,9 +141,14 @@ String udpMulticastAddress = configProps.getProperty(UDP_MCAST_ADDR_PROPERTY); if (udpMulticastAddress == null || udpMulticastAddress.length() == 0) { - String currentAddr = VMNaming.getBindAddress(); - String lastNode = currentAddr.substring(0, currentAddr.indexOf('.')); - udpMulticastAddress = DEFAULT_UDP_MCAST_ADDR_PREFIX + lastNode; + String currentAddr = VMNaming.getBindAddress(); + if (currentAddr.indexOf('.') != -1) { + String lastNode = currentAddr.substring(currentAddr.indexOf('.')+1); + udpMulticastAddress = DEFAULT_UDP_MCAST_ADDR_PREFIX + lastNode; + } + else { + throw new ConfigurationException("Failed to set default multicast address"); //$NON-NLS-1$ + } } if (udpMulticastSupported.equalsIgnoreCase("true")) { //$NON-NLS-1$