uschindler commented on PR #13076:
URL: https://github.com/apache/lucene/pull/13076#issuecomment-1928027541
This my final code:
```java
@Override
public int binaryHammingDistance(byte[] a, byte[] b) {
int distance = 0, i = 0;
for (final int upperBound = a.length & ~(Long.BYTES - 1); i <
upperBound; i += Long.BYTES) {
distance += Long.bitCount((long) BitUtil.VH_NATIVE_LONG.get(a, i) ^
(long) BitUtil.VH_NATIVE_LONG.get(b, i));
}
// tail:
for (; i < a.length; i++) {
distance += Integer.bitCount((a[i] ^ b[i]) & 0xFF);
}
return distance;
}
```
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