org.openqa.selenium.UnhandledAlertException: unexpected alert open

I had this problem too. It was due to the default behaviour of the driver when it encounters an alert. The default behaviour was set to “ACCEPT”, thus the alert was closed automatically, and the switchTo().alert() couldn’t find it. The solution is to modify the default behaviour of the driver (“IGNORE”), so that it doesn’t … Read more

How do I create a directory, and any missing parent directories?

On Python ≥ 3.5, use pathlib.Path.mkdir: from pathlib import Path Path(“/my/directory”).mkdir(parents=True, exist_ok=True) For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it: Try os.path.exists, and consider os.makedirs for the creation. import os if not os.path.exists(directory): os.makedirs(directory) As noted in comments … Read more

Java – When is it a compiler error and when is it a runtime exception?

Compile time error – the java compiler can’t compile the code, often because of syntax errors. Typical candidates: missing brackets missing semicolons access to private fields in other classes missing classes on the classpath (at compile time) Runtime error – the code did compile, can be executed but crashes at some point, like you have … Read more

Where to handle Exceptions in Spring Applications

This is a good way to start your Exception handling in Spring: Step 1 – Create a specific DefaultExceptionHandler class, and annotate it using the @ControllerAdvice annotation. In this handler class, you have different methods, catching both expected and unexpected exceptions, which are annotated using the @ExceptionHandler annotation: @ControllerAdvice(“com.stackoverflow.example”) @SuppressWarnings(“WeakerAccess”) public class DefaultExceptionHandler extends ResponseEntityExceptionHandler … Read more

What are the causes and solutions of exception code c0000005 in mscorwks.dll?

Fatal Engine Execution Error and an access violation are both symptoms of the same problem. FEEE is raised when the .NET garbage collector detects that the internal structure of the garbage collected heap is destroyed. An access violation is a hardware exception, raised by the processor when it is asked to access memory with an … Read more