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OpenIDE TreeView expandAll in NetBeans

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I spent many hours to find out how I could expand a project under 'Projects' tab in NetBeans.

Unfortunately, I couldn't manage it to expand to its maximum depth, instead, it expanded 1 level only (using TreeView::expandAll method).

It seems like it's because the project is not fully loaded, so when I expand one level, that level gets loaded into the memory, and until it's being processed, is considered as last level.

I did not find any solution to this problem, so you guys are my last hope. Do you have a solution I could fully expand a project with?

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