Inconsistent behavior of "contains" operator -------------------------------------------- Key: DROOLS-388 URL: https://issues.jboss.org/browse/DROOLS-388 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 5.5.1.Final, 6.0.0.Final Reporter: Davide Sottara Assignee: Mario Fusco Priority: Minor The compiler accepts constraints such as {code} Person( fullName contains 'Jr' ) // should be fullName.contains('Jr') {code} Interestingly, MVEL evaluates it as the string operation "contains", but once the constraint is jitted it is again evaluated as a collection operator. That is, a rule such as: {code} when $s : String( this contains "foo" ) then {code} with inputs "foo1" .. "fooN" effectively fires an unpredictable number of times before starting to fail silently