Github user franz1981 commented on the issue:
https://github.com/apache/activemq-artemis/pull/2274
@gemmellr It is a good precisation indeed: it is more an improvement, but
if have just allocated fixed size ByteBuf it will fail throwing an exception
even if the space is enough, that's why I have marked it as a minor bug, but I
can change it on the JIRA...---
