code: private void loadDriver(String driver) throws IOException {
          if (driver != null) {
              try {
                  Class.forName(driver);
              } catch (ClassNotFoundException e) {
                  throw new IOException(driver + " cannot be loaded, skipping scan of schema.", e);
              }
          }
      }
docs: Load a class, e.g. the JDBC driver.
  
  @param driver
  The class name.