Automatic handling of CompletionException

Currently in order to handle a CompletionException one needs to do something like this:

app.exception(CompletionException.class, (ex, context) -> {
            HaltException cause = (HaltException) ex.getCause();
            context.status(cause.getStatusCode())
                        .result(cause.getBody());
        });

Which basically does what Javalin automatically does for HaltException. In which case it should be the case that the framework automatically handles CompletionExceptions when the underlying exception is a HaltException. Otherwise, it’s passed over to another exception handler.

Although HaltExeptions were removed the same should apply to their replacement.

[kmehrunes]

I think that pretty much covers it. Thanks.

[tipsy]

Added in https://github.com/tipsy/javalin/commit/fe1b1016f7da1ff112d953cd0b6eb8f5cf71a35f @kmehrunes, please have a look and see if it’ll cover your use case.