In Selenium 4, update the Opera plug-in to automate Opera via ChromeDriver

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Opera stopped releasing new builds of selenium-opera-driver back at version 4.4.0, recommending that people automate the Opera browser with selenium-chrome-driver instead. To make this work, the user will need to specify a couple of settings:

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;

public class OperaAutomation {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");

        ChromeOptions options = new ChromeOptions();
        options.setBinary("/path/to/opera");

        WebDriver driver = new ChromeDriver(options);

        driver.get("https://www.example.com");
        System.out.println("Title: " + driver.getTitle());

        driver.quit();
    }
}

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It may be possible to locate the browser binary by checking standard locations or searching the system file path. The standard locations vary by platform, which complicates this a bit.

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It may be possibly to eliminate the Opera plug-in entirely, revising the Chrome plug-in to add options that point ChromeDriver to the Opera browser instead. I'll need to figure out what the Capabilities JSON looks like to support this configuration.

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https://github.com/operasoftware/operachromiumdriver/blob/master/docs/desktop.md