Extraneous parentheses generated by Guided Rule editor ------------------------------------------------------ Key: DROOLS-2643 URL: https://issues.jboss.org/browse/DROOLS-2643 Project: Drools Issue Type: Bug Components: Guided Rule Editor Affects Versions: 7.8.0.Final Environment: RHDM 7.0.0.GA on Oracle JDK 1.8.0_172 on Mac OSX 10.13.5 Reporter: Jozef Marko Assignee: Michael Anstis Priority: Minor Labels: Central, Decision, RHDM The Guided Rule editor inserts extraneous parentheses in the generated DRL around the phrase "(OrderLine : quantity > 0) from $o.orderlines)" as shown below: package com.redhat.rhdm.demo; import java.lang.Number; rule "SpecialHandlingGuidedRule" dialect "mvel" when $o : Order( orderlines.size() > 0 ) Number( intValue() > 100 ) from accumulate ( (OrderLine( $q : quantity > 0 ) from $o.orderlines) , sum($q)) then end This above DRL will fail to validate. If the extraneous parentheses are removed, as shown below, then the DRL is valid. package com.redhat.rhdm.demo; import java.lang.Number; rule "Assign Special Handling for Large Orders" dialect "mvel" when $o : Order( orderlines.size() > 0 ) Number( intValue() > 100 ) from accumulate (OrderLine( $q : quantity > 0 ) from $o.orderlines, sum($q)) then $o.setIsSpecial( true ) end