To use the https-based repository you will also have to import
https://dev.schibstedsok.no/schibstedsok-ca.pem in your Java keystore. It can be
done after downloading the pem-file using this command:

$ $JAVA_HOME/bin/keytool -import -alias schibstedsokca -file schibstedsok-ca.pem \
-keystore $JAVA_HOME/jre/lib/security/cacerts -storepass changeit