jpountz commented on PR #13969:
URL: https://github.com/apache/lucene/pull/13969#issuecomment-2450030846

   I wrote the javadocs this way on purpose, so that it would still work to 
create an IntVector/LongVector that starts before `from` and count the number 
of values that are less than the target. E.g. something like this:
   
   ```java
   if (length >= LONG_SPECIES.length() && length - from < 
LONG_SPECIES.length()) {
     // less than LONG_SPECIES.length() doc IDs
     LongVector vector = LongVector.fromArray(LONG_SPECIES, values, length - 
LONG_SPECIES.length());
     VectorMask<Long> mask = vector.compare(VectorOperators.LT, target);
     return length - LONG_SPECIES.length() + mask.trueCount();
   } else {
     // other cases
   }
   ```
   
   The current implementation doesn't take advantage of it, so I don't mind 
removing it, we could add it back later on if we want to take advantatge of it 
since it's an internal API.


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