How to use setCommandExecutor method of org.openqa.selenium.remote.RemoteWebDriver class

To not see the logs in the console you can use the following:

System.setProperty("webdriver.gecko.driver","src/main/resources/drivers/geckodriver.exe");
System.setProperty(FirefoxDriver.SystemProperty.DRIVER_USE_MARIONETTE,"true");
System.setProperty(FirefoxDriver.SystemProperty.BROWSER_LOGFILE,"/dev/null");

return new FirefoxDriver();

You need to print the result of the getText(). You're currently printing the object TxtBoxContent.

getText() will only get the inner text of an element. To get the value, you need to use getAttribute().

WebElement TxtBoxContent = driver.findElement(By.id(WebelementID));
System.out.println("Printing " + TxtBoxContent.getAttribute("value"));

You could execute some javascript to interrogate the DOM. Specifically, the complete property of an HTMLImageElement.

public static void waitUntilVisible(WebDriver webDriver, By locator) {
    WebDriverWait driverWait = new WebDriverWait(webDriver, TIMEOUT);
    WebElement el = webDriver.findElement(locator);
    driverWait.until(
        new Predicate<WebDriver>() {
            public boolean apply(WebDriver driver) {
                return ((JavascriptExecutor)driver).executeScript("return arguments[0].complete", el);
            }
        }
    );
}

But note that complete:

Returns a Boolean that is true if the browser has finished fetching the image, whether successful or not. It also shows true, if the image has no src value.

You don't need to convert the whole array. Just call File's getAbsolutePath() method:

driver.findElement(By.id(id1)).sendKeys(listOfFiles[1].getAbsolutePath());

But if you do want to convert the whole array, here is the Java 8 way to do this (simplified by @RemigiusStalder):

String listOfPaths[] = Arrays.stream(listOfFiles).map(File::getAbsolutePath)
        .toArray(String[]::new);

Yes, as what Richard says, this is a duplicate of How to input text into tinceMCE editior using selenium/webdriver.

For your specific code, I'd suggest

• Try different locator for mceContentBody, e.g use By.cssSelector(".mceContentBody"), By.cssSelector("body"), etc.

• Click the body first before sending keys.

driver.findElement(By.tagName("body")).click().sendKeys("YOOOO");

• Set innerHTML

inputWebDriver.switchTo().frame("input-data_ifr");
WebElement element = inputWebDriver.findElement(By.cssSelector("body"));
(JavascriptExecutor)driver.executeScript("arguments[0].innerHTML = '<h1>Set text using innerHTML</h1>'", element);

• Use TinyMCE's native API

// no need to switch iframe
(JavascriptExecutor)driver.executeScript("tinyMCE.activeEditor.setContent('<h1>Native API text</h1> TinyMCE')");

Further reading: Test WYSIWYG editors using Selenium WebDriver

Your variable represents something you want to do with a web element (in this case, click on it).

The appropriate type for that is not String. Use a Consumer<WebElement> instead (or whatever the type of what driver.findElement() returns is):

Consumer<WebElement> command = e -> e.click();

// ...

command.accept(driver.findElement(By.id("id1")));

This is type-safe, efficient, refactorable, and much more flexible than reflection (since your consumer can do whatever it wants with the element, not limited to a single method call without any argument. Like for example, enter some text in a text field)

String userAgent = (String) ((JavascriptExecutor) driver).executeScript("return navigator.userAgent;");

I found the work around as below

1. Open terminal
2. Navigate to path where your chromedriver file is located
3. Execute any one of the below commands

Command1: xattr -d com.apple.quarantine <name-of-executable>

Example

/usr/local/Caskroom/chromedriver 
$ xattr -d com.apple.quarantine chromedriver 

(or)

Command2: spctl --add --label 'Approved' <name-of-executable>

Source: https://docwhat.org/upgrading-to-catalina

Note: This will work only with the file(s) where the above command is executed. If a new chromedriver is downloaded then the command has to be executed again on the newly downloaded file

Try giving the Firefox binary absolute path as a parameter in your code and when invoking from win7 provide this as in input to your JSP and then it could solve the problem. From your above stack trace it says firefox binary cannot be found in /usr/bin/firefox but you are trying to invoke the webdriver in win7 where the path is different.

Receiving org.openqa.selenium.WebDriverException: Cannot find firefox binary in PATH running tests in Selenium IDE with Webdriver playback