public static void main()

in doc/PoolingDataSourceExample.java [77:142]
49 lines of code
11 McCabe index (conditional complexity)

    public static void main(String[] args) {
        //
        // First we load the underlying JDBC driver.
        // You need this if you don't use the jdbc.drivers
        // system property.
        //
        System.out.println("Loading underlying JDBC driver.");
        try {
            Class.forName("org.h2.Driver");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        System.out.println("Done.");

        //
        // Then, we set up the PoolingDataSource.
        // Normally this would be handled auto-magically by
        // an external configuration, but in this example we'll
        // do it manually.
        //
        System.out.println("Setting up data source.");
        DataSource dataSource = setupDataSource(args[0]);
        System.out.println("Done.");

        //
        // Now, we can use JDBC DataSource as we normally would.
        //
        Connection conn = null;
        Statement stmt = null;
        ResultSet rset = null;

        try {
            System.out.println("Creating connection.");
            conn = dataSource.getConnection();
            System.out.println("Creating statement.");
            stmt = conn.createStatement();
            System.out.println("Executing statement.");
            rset = stmt.executeQuery(args[1]);
            System.out.println("Results:");
            int numcols = rset.getMetaData().getColumnCount();
            while(rset.next()) {
                for(int i=1;i<=numcols;i++) {
                    System.out.print("\t" + rset.getString(i));
                }
                System.out.println("");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            try {
                if (rset != null)
                    rset.close();
            } catch (Exception e) {
            }
            try {
                if (stmt != null)
                    stmt.close();
            } catch (Exception e) {
            }
            try {
                if (conn != null)
                    conn.close();
            } catch (Exception e) {
            }
        }
    }