code: private final void alignBuffer(final int diff) throws IOException {
  		if (bufOutput.remaining() < diff) {
  			flushBuffer();
  		}
  		bufOutput.put(MAGIC_PADDING); // Magic for Padding
  		int i = 1;
  		for (; i + 8 <= diff; i += 8) {
  			bufOutput.putLong(0L);
  		}
  		for (; i + 4 <= diff; i += 4) {
  			bufOutput.putInt(0);
  		}
  		switch (diff - i) {
  			case 3:
  				bufOutput.put((byte) 0);
  			case 2:
  				bufOutput.putShort((short) 0);
  				break;
  			case 1:
  				bufOutput.put((byte) 0);
  		}
  	}
docs: Pad output buffer with NULL to complete alignment
  
  @param diff bytes
  @throws IOException