docs: public synchronized void merge(BloomFilter filter) {
          if (!this.matchesAll() && !filter.matchesAll()) {
              checkArgument(filter.data.length == this.data.length &&
                            filter.hashFuncs == this.hashFuncs &&
                            filter.nTweak == this.nTweak);
              for (int i = 0; i < data.length; i++)
                  this.data[i] |= filter.data[i];
          } else {
              this.data = new byte[] {(byte) 0xff};
          }
      }