protected final void batchUpdate(@NonNull List<String> sqls) {
        this.connection = connect();

        if (sqls.size() == 0)
            return;
        try {
            // Prevent automatically sending db instructions
            this.connection.setAutoCommit(false);

            final Statement batchStatement = this.connection.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
            final int processedCount = sqls.size();

            // Prevent automatically sending db instructions
            //this.connection.setAutoCommit(false);


            for (final String sql : sqls)
                batchStatement.addBatch(sql);
            if (processedCount > 10_000)
                Common.log("Updating your database (" + processedCount + " entries)... PLEASE BE PATIENT THIS WILL TAKE "
                        + (processedCount > 50_000 ? "10-20 MINUTES" : "5-10 MINUTES") + " - If server will print a crash report, ignore it, update will proceed.");

            // Set the flag to start time notifications timer
            batchUpdateGoingOn = true;

            // Notify console that progress still is being made
            new Timer().scheduleAtFixedRate(new TimerTask() {

                @Override
                public void run() {
                    if (batchUpdateGoingOn)
                        Common.log("Still executing, DO NOT SHUTDOWN YOUR SERVER.");
                    else
                        cancel();
                }
            }, 1000 * 30, 1000 * 30);

            // Execute
            batchStatement.executeBatch();

            // This will block the thread
            this.connection.commit();

            //Common.log("Updated " + processedCount + " database entries.");

        } catch (final Throwable t) {
            t.printStackTrace();

        } finally {
            try {
                this.connection.setAutoCommit(true);

            } catch (final SQLException ex) {
                ex.printStackTrace();
            }

            // Even in case of failure, cancel
            batchUpdateGoingOn = false;
        }
    }