!7

set flag collectionMutex_debug.

p {
  autoRestart(5);
  
  L l = ll();
  assertSame("ArrayList", collectionMutex(l), l);
  
  new HashMap hmap;
  assertSame("HashMap", collectionMutex(keySet(hmap)), hmap);
  
  NavigableMap map = caseInsensitiveMap();
  assertSameVerbose("keySet/caseInsensitiveMap", collectionMutex(keySet(map)), map);
  assertSameVerbose("navigableKeys/caseInsensitiveMap", collectionMutex(navigableKeys(map)), map);
  
  map.put("bla", "");
  assertSameVerbose("prefixSubSet/navigableKeys/caseInsensitiveMap", collectionMutex(printClassName(prefixSubSet(navigableKeys(map), "bla"))), map);
  
  new WeakHashSet whs;
  assertSame(collectionMutex(keys(whs)), whs);
  
  print("OK!");
}