exception handling for filter in spring

Question

I am handling exceptions in spring using @ExceptionHandler. Any exception thrown by controller is caught using method annotated with @ExceptionHandler and action is taken accordingly. To avoid writing @exceptionHandler for every controller i am using @ControllerAdvice annotation.

Everything works fine as expected.

Now i have a filter(Yes, not interceptor, to handle certain requirement) which is implemented using DelegatingFilterProxy and ContextLoaderListener.

When i am throwing the same exception from above filter, its not caught the way it was done in controller case. It is directly thrown to user.

What's wrong in here?

Answer 1

Filters happens before controllers are even resolved so exceptions thrown from filters can't be caught by a Controller Advice.

Filters are a part of the servlet and not really the MVC stack.