nick bauman created JBRULES-3641: ------------------------------------ Summary: UnknownDescriptionException: Descr ( class org.drools.lang.descr.MVELExprDescr ) is unknown to drools verifier. Key: JBRULES-3641 URL: https://issues.jboss.org/browse/JBRULES-3641 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-verifier Affects Versions: 5.4.0.Final Environment: OSX 10.7.4 Apple Java 1.6.0_35 Reporter: nick bauman Assignee: Mark Proctor When the verifier encounters a rule such as: rule "Contrived Example" when $pitem : PresentedItem(sequenceNumber > 0) $receipt : Receipt(items contains $pitem.id) $item : ReceiptItem(plan == foo.Plan.NULL_PLAN) from $receipt.items then log.info("Contrived Example ran"); end It prints this exception to standard error and swallows the exception (as seen in VerifierImpl.java line 93): org.drools.verifier.visitor.UnknownDescriptionException: Descr ( class org.drools.lang.descr.MVELExprDescr ) is unknown to drools verifier. at org.drools.verifier.visitor.DeclarativeInvokerDescrVisitor.visit(DeclarativeInvokerDescrVisitor.java:58) at org.drools.verifier.visitor.PatternDescrVisitor.visit(PatternDescrVisitor.java:297) ... It seems to be choking on the token $receipt.items in the rule. Not sure if this is a bug or an accidental bit of debug code using stack traces that snuck into a release. I'd like to know which, at least. Thank you. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira