docs: public void setEmptyForRestart(int outputDepId) {
          m_emptyForRestart = true;
          ParameterSet blank = ParameterSet.emptyParameterSet();
          ByteBuffer mt = ByteBuffer.allocate(blank.getSerializedSize());
          try {
              blank.flattenToBuffer(mt);
          }
          catch (IOException ioe) {
              // Shouldn't ever happen, just bail out to not-obviously equivalent behavior
              mt = ByteBuffer.allocate(2);
              mt.putShort((short)0);
          }
          addFragment(EMPTY_HASH, outputDepId, mt);
      }