java util UUID vs Hornetq UUID

Question

I am trying to use duplication detection feature in hornetq, to generate UUID, which is the better option, should I choose Java based UUID or UUID generator which comes with hornetq. what would be the difference

Answer 1

FYI, The HornetQ UUID code is based on an old version of Java UUID Generator project http://wiki.fasterxml.com/JugHome https://github.com/cowtowncoder/java-uuid-generator/

It has been optimized for high performance (as opposed to optimized to avoid collisions). As you can see in the bug case below, some UUID choices may give you a very slow start-up time (which may or may not be a problem to you).

See more information here https://issues.jboss.org/browse/HORNETQ-854