stefanvodita commented on code in PR #13028:
URL: https://github.com/apache/lucene/pull/13028#discussion_r1464835176
##########
lucene/facet/src/java/org/apache/lucene/facet/taxonomy/directory/TaxonomyIndexArrays.java:
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@@ -95,7 +97,8 @@ public TaxonomyIndexArrays(IndexReader reader,
TaxonomyIndexArrays copyFrom) thr
// NRT reader was obtained, even though nothing was changed. this is not
very likely
// to happen.
int[][] parentArray = allocateChunkedArray(reader.maxDoc(),
copyFrom.parents.values.length - 1);
- if (parentArray.length > 0) {
+ assert parentArray.length > 0;
+ if (parentArray[parentArray.length - 1].length > 0) {
Review Comment:
In this constructor we can't use `parentArray[0].length > 0` because
`parentArray[0]` could be `null` if we had already filled up the first chunk,
but I actually think we don't need this if statement at all - what are we
guarding against?
##########
lucene/facet/src/java/org/apache/lucene/facet/taxonomy/directory/TaxonomyIndexArrays.java:
##########
@@ -80,7 +81,8 @@ public int length() {
public TaxonomyIndexArrays(IndexReader reader) throws IOException {
int[][] parentArray = allocateChunkedArray(reader.maxDoc(), 0);
- if (parentArray.length > 0) {
+ assert parentArray.length > 0;
+ if (parentArray[parentArray.length - 1].length > 0) {
Review Comment:
You're right that this condition is not correct. I'll revert back to
`parentArray[0].length > 0`.
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