JabRef version 3.8dev on Windows 10

Steps to reproduce:

1. Open connection to a shared database (e.g., one hosted using ElephantSQL).
2. Be sure not to use autosave
3. close jabref
4. open jabref
5. JabRef shows an IO exception instead of reconnection

23:52:55.139 [AWT-EventQueue-0] ERROR net.sf.jabref.logic.importer.OpenDatabase - Problem opening .bib-file
java.io.FileNotFoundException: C:\git-repositories\jabref\jabref (Zugriff verweigert)