gistfile1.java

import com.opera.core.systems.*;
import org.openqa.selenium.WebElement;

class Example {

  public static void main(String[] args) {
    OperaDriverSettings settings = new OperaDriverSettings();
    settings.setAutostart(false)
    OperaDriver driver = new OperaDriver(settings);

    // Start Opera manually

    // trigger error here

    driver.quit();
  }

}