Re: [rules-users] Migrating from 4.0.7 to 5.4.0.Final

Yes, of course it will be possible, even if my suggestion is to avoid this in production otherwise you will have ALL the constraints running in interpreted mode. Actually you could already achieve this if you can rebuild drools from the sources (you already did it, so I assume it won't be a problem). If you want to try open the class MvelConstraint and modify the constant JIT_THRESOLD. That constant defines after how many times a constraint can be evaluated in interpreted mode before to get JITted, so if you set it to a very high value (e.g. Integer.MAX_VALUE) you should be able to completely avoid any JITting. Let me know if this works. I hope this helps, Mario