Github user clebertsuconic commented on the issue:
https://github.com/apache/activemq-artemis/pull/2396
about previously from 2.0.0 I can only think that we have made improvements
that probably allowed more load. I ran the same test against 2.0.0 and it fails
as well.
Prior to 2.0.0 we would always copy the buffer during send and duplicate
it. I tried to create a single buffer upon receiving and call saveToBuffer
using the read-only-buffer.
During the process I missed this race. Even though I tested it quite a lot.
Regarding validBuffer, The application is single threaded upon receiving a
message. We only need to validate it later during encode, which I added the
synchronize. So i think it's ok?
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