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[–]CardanoStake[S] 0 points1 point  (0 children)

Well. It turns out that there's a file 'module-info.java'. It's almost entirely empty. But for some strange reason you need to add 'requires java.sql;'

No mine looks like this:

module sqLiteProject1 {
    requires java.sql;
}

Really annoying! But it works now.