Please log an enhancement request [1] and we'll address it.
[1]
https://github.com/javaee/grizzly/issues
> Henning Verbeek <mailto:hankipanky_at_gmail.com>
> May 4, 2017 at 03:08
> Hi everyone,
>
> When an incoming request exceeds the configured maxPostSize, grizzly
> aborts the request with HTTP 400.
> Would it make sense to report this as HTTP 413 Payload Too Large?
>
> Thanks,
> Henning