[rules-users] Jboss rules: or with binding issue?

I am using Jboss Rules 4.0.2 version. I am trying to using or with binding. However the following doesn't work rule "RulesTest" # the if part activation-group "ActivationGroup1" salience 50 when $eventType: EventType(id == Constants.EVENT_DEVCOM_ID) $result : Result() $param : Parameter($thresh:threshold) # difference exceeds threshold value and it is still day time context: (or DevContext(difference > $thresh, dayTime == true) DevContext(difference > $thresh, sleepy == false, dayTime == false) ) then # do something here end I get rule compilation errors: SEVERE: CheckedDroolsException org.drools.CheckedDroolsException: There were errors in the rule source: [320,18]: unknown:320:18 mismatched token: [@1949,12142:12143='or',<34>,320:18]; expecting type ID[321,15]: unknown:321:15 mismatched token: [@1967,12215:12227='DevContext',<7>,321:15]; expecting type RIGHT_PAREN[321,86]: unknown:321:86 mismatched token: [@1990,12286:12286=')',<12>,321:86]; expecting type THEN at org.drools.compiler.RuleBaseLoader.makeRuleBase(RuleBaseLoader.java:6 Is this a known bug ? I can work around by using the alternate syntax suggested in the documentation which is: or $context : DevContext(difference > $thresh, dayTime == true) $context : DevComContext(difference > $thresh, sleepy == false, dayTime == false) ) Rahul.