code: void startLookup(int hashCode) {
  		final int posHashCode = findBucket(hashCode);
  
  		// get the bucket for the given hash code
  		final int bucketArrayPos = posHashCode >> table.bucketsPerSegmentBits;
  		final int bucketInSegmentOffset = (posHashCode & table.bucketsPerSegmentMask) << BUCKET_SIZE_BITS;
  		final MemorySegment bucket = this.buckets[bucketArrayPos];
  		table.bucketIterator.set(bucket, overflowSegments, partition, hashCode, bucketInSegmentOffset);
  	}
docs: Probe start lookup joined build rows.