mbien commented on code in PR #8171:
URL: https://github.com/apache/netbeans/pull/8171#discussion_r1921733821
##########
ide/projectui/src/org/netbeans/modules/project/ui/groups/Group.java:
##########
@@ -562,7 +562,15 @@ static void open(final Group g, String oldGroupName,
boolean isNewGroup, Prefere
h.start(200);
ProjectUtilities.WaitCursor.show();
final OpenProjectList opl = OpenProjectList.getDefault();
- Set<Project> oldOpen = new
HashSet<Project>(Arrays.asList(opl.getOpenProjects()));
+
+ Set<Project> oldOpen = new HashSet<>();
+ for (Project open : Arrays.asList(opl.getOpenProjects())) {
+ // TODO fix this properly
+ // unbox potential fod.FeatureNonProject wrapper since it
breaks Sets/Maps due to incompatible hashcode impls
+ Project real = open.getLookup().lookup(Project.class);
+ oldOpen.add(real != null ? real : open);
+ }
+
Review Comment:
this is the workaround
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