code: public void play ()
      {
          if (_state == AL10.AL_PLAYING) {
              log.warning("Tried to play stream already playing.");
              return;
          }
          if (_state == AL10.AL_INITIAL) {
              _qidx = _qlen = 0;
              queueBuffers(_buffers.length);
          }
          _source.play();
          _state = AL10.AL_PLAYING;
      }
docs: Starts playing this stream.