OmniFaces Showcase

Collection of general utility methods with respect to working with exceptions. So far there's only an unwrapper and a type checker.

Usage

Some examples:

// Check if the caught exception has a ConstraintViolationException in its hierarchy.
catch (PersistenceException e) {
    if (Exceptions.is(e, ConstraintViolationException.class)) {
        // ...
    }
}

// Unwrap the caught FacesException until a non-FacesException is found.
catch (FacesException e) {
    Exception realRootCause = Exceptions.unwrap(e, FacesException.class);
    // ...
}