code: @Override
  	protected void submitRedoMeta(final int futureUse) {
  		if (!useRedo) {
  			return;
  		}
  		createRedoThread();
  		final ByteBuffer buf = bufstack.pop();
  		buf.putInt(0x0C0C0C0C); // META HEADER/FOOTER
  		buf.flip();
  		if (useRedoThread) {
  			try {
  				redoQueue.put(buf);
  			} catch (InterruptedException e) {
  				log.error("InterruptedException in submitRedoMeta(" + futureUse + ")", e);
  			}
  		} else {
  			redoStore.write(buf);
  			bufstack.push(buf);
  		}
  	}
docs: submit metadata to redo
  
  @param futureUse ignored (byte in the range of 0-0x7F)