On Sat, 1 Oct 2022 16:53:17 GMT, Andrey Turbanov <[email protected]> wrote:
> Hashtable was used only from single thread. And only non-null key/values
> added to it. We can safely replace it with HashSet.
src/java.desktop/share/classes/javax/swing/text/html/StyleSheet.java line 1364:
> 1362: HashSet<SelectorMapping> alreadyChecked) {
> 1363: // Avoid descending the same mapping twice.
> 1364: if (!alreadyChecked.add(parentMapping)) {
Clever!
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PR: https://git.openjdk.org/jdk/pull/10522
