[ https://issues.jboss.org/browse/DROOLS-904?page=com.atlassian.jira.plugin... ] Davide Sottara updated DROOLS-904: ---------------------------------- Description: 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. was: 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. The proxy class bytecode is deserialized correctly (in JavaDialectRuntimeData), but not loaded by the PCL in a timely fashion. Note: to date, existing serialization tests reuse the same KieBase, thus not showing the issue. -- This message was sent by Atlassian JIRA (v6.4.11#64026)