Hi Steve, Since we have issues with Javassist and Java 1.9, maybe it's the right time to consider switching to ByteBuddy. Vlad On Sat, Oct 1, 2016 at 6:22 PM, Rafael Winterhalter <rafael.wth(a)gmail.com&gt; wrote: > Hello everybody, > > I was wondering how big the chances are to get a Byte Buddy bytecode > provider into Hibernate? Byte Buddy has matured a lot over the last two > years and it aims a lot on performance what is something Hibernate could > benefit of. There are comparion charts posted on the Byte Buddy webpage. As > a bonus, Byte Buddy is already ready for Java 9 and gives a lot of features > for free, for example generic meta data retention and a possibility to > retain annotations on subclassed types and overridden methods. > > I have written a simple proof of concept here: > https://github.com/raphw/hibernate-bb without having tested it - I did not > implement the fast class providers as I have learned after a lot of > benchmarking that those do not improve performance on Java 8+ VMs anymore. > Using such fast-classing rather pollutes the code cache than bring any > benefit. The only advantage with code generation in this field comes when > avoiding boxing what is not the case. But of course, I can implement > something in Byte Buddy to apply such a fast-class mechanism. > > Let me know what you think. I am more then happy to help you with > implementing such a provider. Other frameworks such as Mockito already use > Byte Buddy on a large scale and made good experiences with it. > > Best regards, Rafael > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev > _______________________________________________ hibernate-dev mailing list hibernate-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev