!752

p {
  L l = synchroList(litlist("hello"));
  
  synchronized(get(l, "mutex")) {
    print("This is the safe clone: " + structure(new ArrayList(l)));
  }
  
  // Test getOpt("mutex")
  
  O mutex = getOpt(l, "mutex");
  print("Mutex: " + mutex);
  assertTrue(l == mutex);
}