Github user michaelandrepearce commented on the issue:
https://github.com/apache/activemq-artemis/pull/1263
@franz1981 As noted above, i wanted to look at the collections that
bookkeeper uses, the benefit here with these seems to be much reduced outside
tlab allocation of long[] when it has to resize/rehash. Whilst also bringing
the benefit of much reduced tlab allocating of Long due to autoboxing.
https://github.com/apache/bookkeeper/tree/master/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections
downside is these collections are not in a nice dependency we can just
bring in, as such I've got to do a copy paste job (hopefully not a big deal)
I think I'm happier with these because of the much reduced outside tab
allocation.
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