code: private java.sql.Driver getRealDriver(SimonConnectionConfiguration configuration, Properties info) throws SQLException {
  		java.sql.Driver drv = null;
  		try {
  			drv = DriverManager.getDriver(configuration.getRealUrl());
  		} catch (SQLException e) {
  			// nothing, not an error
  		}
  
  		if (drv == null && info != null && info.keySet().contains(SimonConnectionConfiguration.REAL_DRIVER)) {
  			drv = registerDriver(info.getProperty(SimonConnectionConfiguration.REAL_DRIVER));
  		}
  
  		if (drv == null && configuration.getRealDriver() != null) {
  			drv = registerDriver(configuration.getRealDriver());
  		}
  
  		if (drv == null) {
  			if (configuration.getRealDriver() != null) {
  				drv = registerDriver(configuration.getRealDriver());
  			}
  		}
  
  		if (drv == null) {
  			throw new SQLException("Real driver is not registered and can't determine real driver class name for registration.");
  		}
  		return drv;
  	}
docs: Tries to determine driver class, instantiate it and register if already not registered.
  For more detail look at {@link Driver} class javadoc.
  
  @param configuration instance of url object that represents url
  @param info parameters from {@link #connect(String, java.util.Properties)} method
  @return instance of real driver
  @throws java.sql.SQLException if real driver can't be determined or is not registerd