public long getThreadUserTime(long id) {

  {- -------------------------------------------
  (1) sun.management.ThreadImpl.getThreadUserTime(long[] ids) を呼び出すだけ.
      ---------------------------------------- -}

            long[] ids = new long[1];
            ids[0] = id;
            final long[] times = getThreadUserTime(ids);
            return times[0];
        }