(Update)

As user I might a directory of files, for which there is no repesentation in my local library. I can use "Search for unlinked local files"

A documentation is available at https://docs.jabref.org/collect/findunlinkedfiles#link-the-pdfs-to-your-bib-library

When I run the tool and import entries, the full absolute path is written:

    file      = {:C\:/Users/koppor/git-repositories/paper/bib/pdfs/Adapting BDDs for Visualizing Product Configuration Data.pdf:PDF},

expected:

    file      = {:Adapting BDDs for Visualizing Product Configuration Data.pdf:PDF},

because of

    @Comment{jabref-meta: fileDirectory:pdfs;}

The .bib file is located in C\:/Users/koppor/git-repositories/paper/bib. Therefore, the configuration of the path pdf works.

How to reproduce

1. Put test PDF files in c:\jabref-test\pdfs
2. Create test.bib in c:\jabref-test
3. Configure c:\jabref-test\pdfs as PDF path int he library:
   
4. Execute the "Search for unlinked local files"

Implementation Hints

The functionality to call is the same as in the cleanup entries dialog