Should not move to next AgendaGroup even if current is empty ------------------------------------------------------------ Key: DROOLS-3282 URL: https://issues.jboss.org/browse/DROOLS-3282 Project: Drools Issue Type: Bug Reporter: Edoardo Vacchi Assignee: Edoardo Vacchi Priority: Major Labels: drools-core Current implementation moves to next agend group if current agenda group is empty. This is unexpected, and in part detrimental in the impl of units: it is not possible to suspend execution of rules by switching to an empty group, because the engine will move to the next group anyway: {code} return nextRule != null && (!ruleAgendaItem.getAgendaGroup().equals( nextRule.getAgendaGroup() ) || !isHigherSalience(nextRule)); {code} because the change in behavior is potentially backwards incompatible we add a flag {{keepWhenEmpty}} that must be set to {{true}} when we want to enable this new behavior