/**
     * Allocates a new {@code Thread} object. This constructor has the same
     * effect as {@linkplain #Thread(ThreadGroup,Runnable,String) Thread}
     * {@code (null, target, name)}.
     *
     * @param  target
     *         the object whose {@code run} method is invoked when this thread
     *         is started. If {@code null}, this thread's run method is invoked.
     *
     * @param  name
     *         the name of the new thread
     */

    public Thread(Runnable target, String name) {

  {- -------------------------------------------
  (1) java.lang.Thread.init() を呼び出すだけ.
      ---------------------------------------- -}

            init(null, target, name, 0);
        }