Trait proxy classes are not restored on persistent session deserialization -------------------------------------------------------------------------- Key: DROOLS-904 URL: https://issues.jboss.org/browse/DROOLS-904 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 5.5.0.Final, 5.6.0.Final, 6.0.0.Final, 6.0.1.Final, 6.1.0.Final, 6.2.0.Final, 6.3.0.CR1, 6.3.0.CR2 Reporter: Davide Sottara Assignee: Mario Fusco Priority: Blocker Fix For: 6.3.0.Final Trait proxy classes are created lazily at runtime when a trait is instantiated for the first time. Deserializing a previously persisted session containing a proxy instance requires the proxy class to be available to the KieBase's project class loader by the time the session is restored. However, a freshly recreated KieBase for the purpose of restoring a session will not have the proper classes loaded. Note: to date, existing serialization tests reuse the same KieBase, thus not showing the issue.