docs: public static int murmurhash3x8632(byte[] data, int offset, int len, int seed) {
  
          int c1 = 0xcc9e2d51;
          int c2 = 0x1b873593;
  
          int h1 = seed;
          int roundedEnd = offset + (len & 0xfffffffc);  // round down to 4 byte block
  
          for (int i = offset; i < roundedEnd; i += 4) {
              // little endian load order
              int k1 = (data[i] & 0xff) | ((data[i + 1] & 0xff) << 8) | ((data[i + 2] & 0xff) << 16) | (data[i + 3] << 24);
              k1 *= c1;
              k1 = (k1 << 15) | (k1 >>> 17);  // ROTL32(k1,15);
              k1 *= c2;
  
              h1 ^= k1;
              h1 = (h1 << 13) | (h1 >>> 19);  // ROTL32(h1,13);
              h1 = h1 * 5 + 0xe6546b64;
          }
  
          // tail
          int k1 = 0;
  
          switch(len & 0x03) {
              case 3:
                  k1 = (data[roundedEnd + 2] & 0xff) << 16;
                  // fallthrough
              case 2:
                  k1 |= (data[roundedEnd + 1] & 0xff) << 8;
                  // fallthrough
              case 1:
                  k1 |= data[roundedEnd] & 0xff;
                  k1 *= c1;
                  k1 = (k1 << 15) | (k1 >>> 17);  // ROTL32(k1,15);
                  k1 *= c2;
                  h1 ^= k1;
              default:
          }
  
          // finalization
          h1 ^= len;
  
          // fmix(h1);
          h1 ^= h1 >>> 16;
          h1 *= 0x85ebca6b;
          h1 ^= h1 >>> 13;
          h1 *= 0xc2b2ae35;
          h1 ^= h1 >>> 16;
  
          return h1;
      }