Exception

If any handler throws an exception within the handler chain, that exception will bubble up to the undertow server and eventually a 500 response will be sent to the consumer. In order to change the behaviour, an exception handler is provided to handle ApiException and other uncaught exceptions.

Runtime Exception

Any runtime exception will be captured and return a standard 500 error with error code ERR10010.

Uncaught Exception

Any checked exception that is not handled by handlers in the handler chain is captured and return a 400 error with error code ERR10011

ApiException

ApiException has a status object and it will return to consume the data defined in the status object.

Logging

Exception handler will log the exception with stacktrace.