/**
     * Detach from the target VM
     */

    public void detach() throws IOException {

  {- -------------------------------------------
  (1) path フィールドを null にするだけ.
      (See: sun.tools.attach.LinuxVirtualMachine.execute())
      ---------------------------------------- -}

            synchronized (this) {
                if (this.path != null) {
                    this.path = null;
                }
            }
        }