Invalid result with collect, mvel and ForceEagerActivationOption.YES -------------------------------------------------------------------- Key: DROOLS-4468 URL: https://issues.jboss.org/browse/DROOLS-4468 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.25.0.Final Reporter: Martin Weiler Assignee: Mario Fusco Priority: Major Attachments: case02445433-testcase.zip A rule updates a list in a fact: {noformat} rule "Init" dialect "mvel" when $fl: FactWithList(items.size()==0) then $fl.getItems().add("A"); $fl.getItems().add("B"); update($fl); end {noformat} A second rule verifies if other facts exist, matching the items in the updated list: {noformat} rule "Expected Outcome" dialect "mvel" when $fl: FactWithList($itemList : items != null) $l: java.util.ArrayList(size > 0) from collect(FactWithString($itemList contains stringValue)); then System.out.println("--> Rule: " + kcontext.getRule().getName() + " fired, " + $fl + ", collect list: " + $l.size()); end {noformat} This rule is *not* fired if * mvel dialect is used *and* * Drools is executed with {{ForceEagerActivationOption.YES}} (jBPM use case) Note: This worked in 7.17 and earlier!