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Just in the preferences of NetBeans, one can find three different types of file choosers where one single (generic) type would (and should) be enough.
Created attachment 136819 [details] Filechooser to select JavaHL libraries
Created attachment 136820 [details] Filechooser to select Android directory
Created attachment 136821 [details] Filechooser to select SASS file
Created attachment 136822 [details] Filechooser to select Snaphot file
Only Android dir chooser is actually different. Other file chooser use the same API. They differ because they have different properties/functionality enabled/disabled, e.g. creation of new directories is (not) allowed, file must exist etc. Reassigning to J. Becicka to evaluate the dir chooser for SDK folder in Options window.