Nirav,
Derby (also known as JavaDB) is supported in DbVisualizer. Read more about the database specific support here:
http://www.dbvis.com/products/dbvis/doc/main/doc/ug/databaseSpecific/derby.html
Unfortunately I don't have any experience with Artifactory.
I recommend you check with the JFrog people where to find the database file(s) and what
JDBC URL to use while connecting in DbVisualizer (or any JDBC based interface).
Once you know the location of the database files (full path), then launch DbVisualizer and start the Tools->Connection Wizard to setup the connection. The Derby JDBC driver is bundled with DbVisualizer.
Regards
Roger