DIServerInfoArray servers = MWSProxy.getAllDIServers(null);
if (servers.getDIServerInfo() != null) {
   for(int i=0; i < servers.getDIServerInfo().length ; i++) {
      System.out.println("("+(i+1)+") "+servers.getDIServerInfo(i).getName());
      }
   }

DIServiceInfo diInfo = new DIServiceInfo();
diInfo.setDomainName(DI_DOMAIN_NAME);
diInfo.setServiceName(SERVICE_NAME);
PingDIServerRequest pingReq = new PingDIServerRequest();
pingReq.setDIServiceInfo(diInfo);
pingReq.setTimeOut(100);
EPingState eps = DIWSProxy.pingDIServer(pingReq);