/**
     * Allocates a new {@code Thread} object. This constructor has the same
     * effect as {@linkplain #Thread(ThreadGroup,Runnable,String) Thread}
     * {@code (null, null, gname)}, where {@code gname} is a newly generated
     * name. Automatically generated names are of the form
     * {@code "Thread-"+}<i>n</i>, where <i>n</i> is an integer.
     */

    public Thread() {

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

            init(null, null, "Thread-" + nextThreadNum(), 0);
        }