So, this had everything to do with:
kb.addKnowledgePackages(kbBuilder.getKnowledgePackages());
If I remove this line, all is fine.
Fortunately, in my project I do not actually need to state specific packages
(I am using a ruleflow to control the flow instead).
However, this should be noted as a possible bug, if you do not see anything
readily wrong with my set up.
--
View this message in context:
http://drools.46999.n3.nabble.com/Issue-with-From-Clause-Class-Cast-Error...
Sent from the Drools: User forum mailing list archive at
Nabble.com.