This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
Similar like issue 130431: If you have project with dedicated lib folder, and you want to add dependency on some library defined in global libraries, library resources are copied into dedicated lib folder. Some progress bar (or modal dialog showing progress bar, or....ask HIE?!) is needed here (Jfreechart + sources + javadoc = ~1-2min)
are you having javadoc/sources as folders rather than jars/zips? what the the actual size of the library bits? I can't see how a few megs of should take minutes to copy.
the point is that copying of sources folder is slow - 6.8MB, 600 files takes ~1-2 minutes (import in IDE), but takes ~10 seconds outside of IDE.
Reassigning to default owner.
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue. Thanks for your cooperation, NetBeans IDE 8.2 Release Boss