How to use getExceptionType method of org.openqa.selenium.remote.ErrorCodes class

Given you already found your element and you want to check for a certain class inside the class-attribute:

public boolean hasClass(WebElement element) {
    String classes = element.getAttribute("class");
    for (String c : classes.split(" ")) {
        if (c.equals(theClassYouAreSearching)) {
            return true;
        }
    }
    
    return false;
}

#EDIT As @aurelius rightly pointed out, there is an even simpler way (that doesn't work very well):

public boolean elementHasClass(WebElement element, String active) {
    return element.getAttribute("class").contains(active);
}

This approach looks simpler but has one big caveat:

As pointed out by @JuanMendes you will run into problems if the class-name you're searching for is a substring of other class-names:

for example class="test-a test-b", searching for class.contains("test") will return true but it should be false

#EDIT 2 Try combining the two code snippets:

public boolean elementHasClass(WebElement element, String active) {
    return Arrays.asList(element.getAttribute("class").split(" ")).contains(active);
}

That should fix your caveat.

This error message...

2018-08-31 09:16:26,570 ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /crawlerClass/myCrawler/5922: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.openqa.selenium.WebDriverException: Timed out waiting for driver server to start.

...implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session.

Your base exception is the org.openqa.selenium.WebDriverException as your program Timed out waiting for driver server to start because of the following reason:

• Your JDK version is 1.8.0_92 which is pretty ancient.

So there is a clear mismatch between the JDK v8u92 and current Selenium Client v3.14.0.

Solution

• Upgrade JDK to recent levels JDK 8u181.
• Upgrade Selenium to current levels Version 3.14.0.
• Upgrade ChromeDriver to current ChromeDriver v2.41 level.
• Keep Chrome version between Chrome v66-68 levels. (as per ChromeDriver v2.41 release notes)
• Take a System Reboot.
• Execute your @Test.

The server:

import org.openqa.selenium.server.SeleniumServer;
public class SeleniumServerControl {
  private static final SeleniumServerControl instance = new SeleniumServerControl();
  public static SeleniumServerControl getInstance() {
    return instance;
  }
  private SeleniumServer server = null;
  protected SeleniumServerControl() {
  }
  public void startSeleniumServer() {
    if (server == null) {
      try {
        server = new SeleniumServer(SeleniumServer.DEFAULT_PORT);
        System.out.println(" selenium server " + server.toString());
      } catch (Exception e) {
        System.err.println("Could not create Selenium Server because of: "
            + e.getMessage());
        e.printStackTrace();
      }
    }
    try {
      server.start();
    } catch (Exception e) {
      System.err.println("Could not start Selenium Server because of: "
          + e.getMessage());
      e.printStackTrace();
    }
  }
  public void stopSeleniumServer() {
    if (server != null) {
      try {
        server.stop();
        server = null;
      } catch (Exception e) {
        System.err.println("Could not stop Selenium Server because of: "
            + e.getMessage());
        e.printStackTrace();
      }
    }
  }
}

The client:

browser = new DefaultSelenium("localhost", 4444, "*firefox", "http://www.google.com");
browser.start();

I am using chromedriver with selenium and python. I encountered same problem and following code worked for me-

driver.execute_script("window.confirm = function(msg) { return true; }")

prefs = {"protocol_handler.excluded_schemes":{"afp":True,"data":True,"disk":True,"disks":True,"file":True,"hcp":True,"intent":True, "itms-appss":True, "itms-apps":True,"itms":True,"market":True,"javascript":True,"mailto":True,"ms-help":True,"news":True,"nntp":True,"shell":True,"sip":True,"snews":False,"vbscript":True,"view-source":True,"vnd":{"ms":{"radio":True}}}}    

chrome_options.add_experimental_option("prefs",prefs)

Let's say you want to suppress protocol handler popup for links starting with "sip://"
Just add an extra entry as "sip":True in "protocol_handler.excluded_schemes"

Passing a Capabilities object to the ChromeDriver() constructor is deprecated. One way to use a proxy is this:

String proxy = "127.0.0.1:5000";
ChromeOptions options = new ChromeOptions().addArguments("--proxy-server=http://" + proxy);
WebDriver webDriver = new ChromeDriver(options);

See if this answer helps:
http://code.google.com/p/selenium/issues/detail?id=27#c6

Overall, the thread raises a similar concern as yours. You are trying to handle this as an alert, see if you can handle this as a js confirmation dialog.

You can enable JavaScript by doing either

• new HtmlUnitDriver(true);
• driver.setJavascriptEnabled(true);

What you need to do is to wait until the JavaScript is executed after get(url).

You can use Thread.sleep() method for adding some delay.

HtmlUnitDriver driver = new HtmlUnitDriver(BrowserVersion.FIREFOX_3_6);
driver.setJavascriptEnabled(true);
driver.get(url);

Thread.sleep(100);

runTest();

Update

As @Corey indicated in the comments, it could be nicer to use Explicit and Implicit Waits instead of Thread.sleep(). As I don't use them these days, I cannot confirm, though. It would be great if someone test them and update this answer.

You can use //p[@class='artdeco-toast-message']/text() xpath to locate the Invitation sent to xxxxx text but selenium doesn't support text() method in xpath to locate a text node.

Either if you try to locate the element using below xpath to exclude the button text by using not() function of xpath :

//p[@class='artdeco-toast-message']/node()[not(self::button)]

Again it locating the element using text node so Selenium doesn't allow this

Here one solution available to execute same xpath i.e. JavascriptExecutor

Use evaluate() method of JavaScript and evaluate your xpath using JavascriptExecutor

JavascriptExecutor js = (JavascriptExecutor)driver;
Object message = js.executeScript("var value = document.evaluate(\"//p[@class='artdeco-toast-message']/text()\",document, null, XPathResult.STRING_TYPE, null ); return value.stringValue;");
System.out.println(message.toString().trim());

OR

JavascriptExecutor js = (JavascriptExecutor)driver;
Object message = js.executeScript("var value = document.evaluate(\"//p[@class='artdeco-toast-message']/node()[not(self::button)]\",document, null, XPathResult.STRING_TYPE, null ); return value.stringValue;");
System.out.println(message.toString().trim());

It will give you the expected result. No need to get all data and then formatting using String functions.

You can explore evaluate() in detail from here

Use findElements instead of findElement.

findElements will return an empty list if no matching elements are found instead of an exception.

To check that an element is present, you could try this

Boolean isPresent = driver.findElements(By.yourLocator).size() > 0

This will return true if at least one element is found and false if it does not exist.

The official documentation recommends this method:

findElement should not be used to look for non-present elements, use findElements(By) and assert zero length response instead.