code: public static EWAHCompressedBitmap bufferedxor(final int bufSize,
                                                     final EWAHCompressedBitmap... bitmaps) {
          EWAHCompressedBitmap answer = new EWAHCompressedBitmap();
          bufferedxorWithContainer(answer, bufSize, bitmaps);
          return answer;
      }
docs: Compute the xor aggregate using a temporary uncompressed bitmap.
  
  @param bitmaps the source bitmaps
  @param bufSize buffer size used during the computation in 64-bit
  words
  @return the xor aggregate.