!747
!x721 // thread {

m {
  static String helloString;
  static S programID; // filled by JavaX
  static int port; // use random port
  
  p {
    helloString = "Hello. This is #" + programID; // my hello string
    port = installHelloMessage(helloString);
    print("Hello world. Sleeping. Port=" + port);
    sleep();
  }
}