@Override
    public void shutdown() throws Exception {
        if (this.connection != null) {
            this.connection.shutdown();
        }
    }
Creates a connection to the database.

@param file the database file
@return the connection
@throws SQLException if any error occurs
common/src/main/java/me/lucko/luckperms/common/storage/implementation/sql/connection/file/FlatfileConnectionFactory.java