docs: public void bind () throws DcerpcException, IOException {
          synchronized ( this ) {
              try {
                  this.state = 1;
                  DcerpcMessage bind = new DcerpcBind(this.binding, this);
                  sendrecv(bind);
              }
              catch ( IOException ioe ) {
                  this.state = 0;
                  throw ioe;
              }
          }
      }