docs: public void becomeCloneOf(ManagedObject other)
      {
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.entry(this, cclass,
                          "becomeCloneOf",
                          "Other="
                                          + other);
  
          super.becomeCloneOf(other);
  
          concurrentListToken = ((ConcurrentSubList) other).concurrentListToken;
  
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.exit(this, cclass,
                         "becomeCloneOf");
      }