Investigate modify parsing bug in executable model -------------------------------------------------- Key: DROOLS-4916 URL: https://issues.redhat.com/browse/DROOLS-4916 Project: Drools Issue Type: Bug Components: executable model Reporter: Luca Molteni Assignee: Luca Molteni Priority: Major Labels: good-first-issue declare Application categories : Set = new HashSet() Then I had a modify statement scattered about: modify ($a) { $a.getCategories().add("hello"); } The ExecutableModel did not seem to like any of those. I changed it to: $a.getCategories().add("hello"); update($a);