title: Drools and Multithreading
body: <p>I am executing Drools in a multi-threaded application. Often times, I am seeing this warning in the console:</p>
  
  <p><strong>2018-01-24 09:17:16.223 AM [drools-worker-4] WARN  o.d.c.rule.constraint.MvelConstraint - Exception jitting</strong>: driveable == 'Y' This is NOT an error and NOT prevent the correct execution since the constraint will be evaluated in intrepreted mode.</p>
  
  <p>Does it mean the constraint order for evaluation needs to be changed? Any insights on this will be helpful.
  I am using Drools 6.5.0.Final.
  Application: Spring Boot with Thread pool task executor.</p>