mbien commented on code in PR #4555:
URL: https://github.com/apache/netbeans/pull/4555#discussion_r960117646
##########
ide/xml.catalog.ui/src/org/netbeans/modules/xml/catalog/CatalogRootNode.java:
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@@ -172,7 +172,7 @@ public HelpCtx getHelpCtx() {
private static class RootChildren extends Children.Keys implements
Comparator, PropertyChangeListener {
/** Contains CatalogReader instances. */
- private final TreeSet keys = new TreeSet(this);
+ private final Set keys = new TreeSet<>(this);
Review Comment:
I think this can be `Set<CatalogReader>` as the comment states if the item
is cast to `CatalogReader` further down in `createKeys(..)`.
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