mbien commented on issue #7720:
URL: https://github.com/apache/netbeans/issues/7720#issuecomment-2325105211

   
https://github.com/apache/netbeans/blob/33d11303269b338a95e47681e3a1f66d704fd09d/ide/projectui/src/org/netbeans/modules/project/ui/actions/OpenSubprojects.java#L159-L164
   
   this would be the entry point for the lazy init logic. I checked and all UI 
calls are made on EDT. A few fields like `initialized` should be changed to 
`volatile` there, since the `subProjects` Set is initialized in the background, 
but worst what could happen is that this gets initialized multiple times - this 
would not explain why item selection is not working.


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