svoid test_structure_synchroList() {
  L l = synchroList();
  testStructureFunction(l);
  assertEqualsVerbose(_getClass(l), _getClass(restruct(l)));
  
  // legacy format
  L l2 = cast unstructure("syncLL[1, 2]");
  assertEquals(synchronizedList().getClass(), l2.getClass());
  assertTrue(unwrapSynchronizedList(l2) instanceof LinkedList);
  assertEquals(ll(1, 2), l2);
  
  print("OK");
}