Expose JGroups JChannel JMX monitoring

protected void startJGroupsChannelIfNeeded() {
        if (startChannel) {
            try {
                channel.connect(configuration.getClusterName());
                // my first contribution M Lachance
                ArrayList servers = MBeanServerFactory.findMBeanServer(null);
 
                if (servers == null || servers.size() == 0) {
                    log.log(Logger.Level.WARN, "No Available MBean Servers");
                    //throw new Exception("No MBeanServers found;" +
                    //        "\nJmxTest needs to be run with an MBeanServer present, or inside JDK 5");
                } else {
 
                    MBeanServer server = (MBeanServer) servers.get(0);
                    try {
                        if (server != null) {
                            JmxConfigurator.registerChannel((JChannel) channel, server, "JChannel=" + channel.getChannelName(), "", true);
                        }
                    } catch (Exception e) {
 
                        log.log(Logger.Level.WARN, "Could not resgister with JMX",e);
                    }
                }
            } catch (ChannelException e) {
                throw new CacheException("Unable to start JGroups Channel", e);
            }
        }
        address = new JGroupsAddress(channel.getAddress());
        if (log.isInfoEnabled())
            log.localAndPhysicalAddress(getAddress(), getPhysicalAddresses());
    }