Binding makes parser accept non-boolean constraint -------------------------------------------------- Key: DROOLS-43 URL: https://issues.jboss.org/browse/DROOLS-43 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Reporter: Mario Fusco Assignee: Mario Fusco Fix For: 5.5.1.Final, 6.0.0.Final Below is a self-contained DRL which should not compile because the sum isn't a boolean expression. (Note that omitting "$x:" results in the correct diagnostic "predicate ... must be a boolean".) {code} declare Foo a: double b: double end rule what when $c: Foo( $x: a + b ) then System.out.println( "foo: " + $c ); end {code}