FEEL list filter returns empty collection when there are errors evaluating filter --------------------------------------------------------------------------------- Key: DROOLS-1679 URL: https://issues.jboss.org/browse/DROOLS-1679 Project: Drools Issue Type: Bug Components: dmn engine Affects Versions: 7.1.0.Final Reporter: Tibor Zimányi Assignee: Fedor Gavrilov Priority: Minor Fix For: 7.4.0.Final When having this FEEL list with filter which is incorrect: {code:java} ["a", "b", "c"][a] {code} the evaluation returns an empty list instead of null. Output of this test is here: https://gist.github.com/baldimir/18232741fdf1b425ba84d00d83edb939 I will provide PR with a reproducer today.