cinsttool commented on code in PR #13254:
URL: https://github.com/apache/lucene/pull/13254#discussion_r1547605381
##########
lucene/core/src/java/org/apache/lucene/index/FieldInfos.java:
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@@ -165,8 +164,7 @@ public FieldInfos(FieldInfo[] infos) {
valuesTemp.add(byNumberTemp[i]);
}
}
- values =
-
Collections.unmodifiableCollection(Arrays.asList(valuesTemp.toArray(new
FieldInfo[0])));
+ values = Collections.unmodifiableCollection(valuesTemp);
Review Comment:
> If we pre-size `valuesTemp` correctly, it looks like it would work indeed.
We observe that the `info` will never be null since the if statements
already visit `info.number` here at line 87. Therefore, we pre-size
`valuesTemp` to `infos.length`.
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