Netbeans scanning symlinked directories

I have many projects open in netbeans that have a symlink to a library folder inside their source code root.

Does netbeans scan the symlinked directory once, or once for each project?

I ask this because it takes a very long time for netbeans to scan my proj开发者_JAVA百科ects, and the biggest part of them is the library. Which in comparison is about 500% larger than any 1 project.

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I think it scans it once for each project (better: for each symlink pointing to it).

You can add symlinks manually under project preferences -> Run Configuration -> Advanced -> Path Mapping. But I didn't have fully tested if that's a solution for not scanning symlinked directories twice…