vy commented on code in PR #3868:
URL: https://github.com/apache/logging-log4j2/pull/3868#discussion_r2269301265
##########
log4j-api/src/main/java/org/apache/logging/log4j/CloseableThreadContext.java:
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@@ -206,7 +207,7 @@ public void close() {
}
private void closeMap() {
- final Map<String, String> valuesToReplace = new
HashMap<>(originalValues.size());
+ final Map<String, String> valuesToReplace =
Maps.newHashMap(originalValues.size());
Review Comment:
Since Log4j 2 supports Java 8, we don’t really have the concept of internal
packages — everything is effectively available for use. Once we introduce a
public class, it’s unlikely we’ll be able to remove it later (see [Hyrum’s
Law](https://www.hyrumslaw.com/)).
I’m generally not in favor of optimizing `HashMap` resizing unless there’s a
clear benefit, with the exception of `CloseableThreadContext`, where a simple
inline math operation achieves the goal cleanly.
In short, I’m leaning `-0` on the PR in its current state. Your perspective
is just as important as mine, so I’m happy to leave the final call to you.
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