FEEL String marshaller fails on list of null -------------------------------------------- Key: DROOLS-1651 URL: https://issues.jboss.org/browse/DROOLS-1651 Project: Drools Issue Type: Bug Components: dmn engine Reporter: Mélanie Gauthier Assignee: Fedor Gavrilov Attachments: Invalid function.dmn For example, if you execute the invalid attached file (kind attribute of the function isn't right - it is set to undefined) it produces an array of null. When calling FEELStringMarshaller.INSTANCE.marshall(decisionResult.getResult()) you get a NPE.