JDBC drivers: fix 'Unsupported URL' – drivers might be called witrh wrong URLs and then they should (according to the JavaDoc) return null instead of throwing an exception.
This problem occurred when --test-connection was testing multiple connections in parallel.
6 java/sql-dk/data/info/globalcode/sql/dk/version.txt
7 java/sql-dk/data/info/globalcode/sql/dk/help.txt
13 ^java/[^/]+/nbproject/private/
17 ^c\+\+/[^/]+/nbproject/private/
19 ^distributions/debian/.*\.deb$
20 ^distributions/src/.*\.tar\.gz$
22 ^distributions/fedora/TMP/
23 ^distributions/fedora/.*\.rpm$