IOException thrown when trying to close already closed stream

Hello,

When running performance test towards Undertow (using "h2load" as a client) I have noticed that all exchanges ends with an exception:

If I understand correctly the problem is caused by the method  HttpServerExchange.DefaultBlockingHttpExchange.getInputStream() which tries to create a new UndertowInputStream even for an exchange which has already completed:

I can workaround the problem by adding null checks in the HttpServerExchange.DefaultBlockingHttpExchange.close() method:

Maybe there is a better way to do this?

Thanks, Gunnar