Avoid loading metadata using Postgres JDBC driver and Apache BasicDataSource

Question

Does anybody know how to avoid the Postgres driver from loading all metadata when connecting to a database?

It takes about a minute to connect with the driver, and from the console it takes like 1ms.

I found this answer but for JPA, I need something like this for JDBC: Hibernate Slow to Acquire Postgres Connection

This are my connection manager methods related to the question. I use a HashMap which holds a BasicDataSource per Database, a method to initialise the BasicDataSource for each DB, and another to get a connection from the corresponding DB datasource.

The delay of over a minute occurs on 'dataSource.getConnection()'

private HashMap<Database, BasicDataSource> dataSources = new HashMap<Database, BasicDataSource>();

private void initializeConnectionPools() throws FileNotFoundException, ReaderException, InterruptedException
    {
        if (dataSources.isEmpty())
        {
            Reader data = ReaderFactory.getReader(Constants.DATA_FILE);
            DatabaseConnectionData connectionData = data.getDatabaseConnectionData();

            String url = Constants.POSTGRESQL_JDBC_PREFIX + connectionData.getHost();

            logger.info("INITIALIZING CONNECTIONS POOL [@" + connectionData.getHost() + "]");

            BasicDataSource dataSource = null;

            for (Database database : Database.values())
            {
                dataSource = new BasicDataSource();
                dataSource.setDriverClassName(Constants.POSTGRESQL_DRIVER_CLASS);
                dataSource.setUrl(url + database.toString().toLowerCase());
                dataSource.setUsername(connectionData.getUser());
                dataSource.setPassword(connectionData.getPassword());
                // Initial size is:
                // The number of browsers multiplied per number of instances
                // allowed for each browser on GRID nodes
                dataSource.setInitialSize(AppnameStation.values().length * 5);
                dataSource.setMaxTotal(-1);

                dataSources.put(database, dataSource);
            }

            logger.info("CONNECTIONS POOL INITIALIZED [@" + connectionData.getHost() + "]");
        }
    }

public Connection getConnection(Database database)
        throws SQLException, FileNotFoundException, ReaderException, ClassNotFoundException
{
    Connection connection = null;
    BasicDataSource dataSource = dataSources.get(database);

    logger.info("Getting " + database + " database connection");

    connection = dataSource.getConnection();

    logger.info("Connected to " + database + " database");

    return connection;
}

Thanks!