public synchronized void stopEntityGroupServer(final String hostnamePort)
throws IOException {
String hostname = Addressing.parseHostname(hostnamePort);
int port = Addressing.parsePort(hostnamePort);
AdminProtocol admin = this.connection.getAdmin(hostname, port);
StopServerRequest request = RequestConverter
.buildStopServerRequest("Called by admin client "
+ this.connection.toString());
try {
admin.stopServer(null, request);
} catch (ServiceException se) {