Unexpected "Illegal method call. This session was previously disposed." in Drools v10.1.0

[jarlesat]

I can't see that this has been reported. When running a process defined in a bpmn file, and that file includes a node of type reusable subprocess, that in turn run another process in another bpmn file, it fails immediately with a java.lang.IllegalStateException: Illegal method call. This session was previously disposed.

This is introduced in v10.1.0, and does not happen in v10.0.0 (nor in earlier version neither). As far as I can tell this is introduced in a commit, 5810447b0cbb20e036a9a6f3fec07faa929f2231, that has one single change in the code that disposes the kieSession as the last activity in RuleFlowGroupRuleTypeEngineImpl::evaluate. The comment says "Dispose KieSession after rules execution when using ruleFlowGroup (#3678)", but that can seems to not be a intended behaviour? But I may of cource have missed something :-)

I have included a minimal maven project as a zip file that demonstrates it.

sample.zip

[jarlesat]

Right after the submission of this issue I realized that I had probably been in the wrong, but closely related, place. I have therefore registered this issue as incubator-kie-kogito-runtimes#4181 as well.