[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1083) Brackets are not always optional for non-existential quantifier "not"

Brackets are not always optional for non-existential quantifier "not" ---------------------------------------------------------------------- Key: JBRULES-1083 URL: http://jira.jboss.com/jira/browse/JBRULES-1083 Project: JBoss Rules Issue Type: Bug Security Level: Public(Everyone can see) Components: Drl Parser/Builder Affects Versions: 4.0.0.GA Reporter: Markus Reitz Assigned To: Michael Neale Priority: Minor Fix For: 4.0.1 According to the documentation, brackets are optional as illustrated by Example 6.37. No Busses not Bus() In case of the rule (class SpecialString in http://jira.jboss.com/jira/browse/JBRULES-1079) package test rule "Brackets" when not exists(x : SpecialString() and forall(y : SpecialString(this!=x) SpecialString(this==y, text=="Universe"))) then System.out.println("Condition satisfied"); end this is not true. Trying to load this rule leads to org.drools.rule.InvalidRulePackage: [8,8]: unknown:8:8 Unexpected token 'exists' at org.drools.rule.Package.checkValidity(Package.java:408) at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:288) at DroolsTest.<init>(Unknown Source) at DroolsTest.main(Unknown Source) When brackets are added: package test rule "Brackets" when not(exists(x : SpecialString() and forall(y : SpecialString(this!=x) SpecialString(this==y, text=="Universe")))) then System.out.println("Condition satisfied"); end rule loading works without any exceptions.