Drools decision table: $param is in a list under CONDITION column
I have to check in the `CONDITION` column if the `$para`m is contained in the list object of the class. The list is already filled with some elements from a `ruleTable` above, so it should not be empty when considering this second `ruleTable` I'm talking about and the condition should be satisfied.
I tried with `listaAmbiti.contains($param)`, but it doesn't work. It is executed and doesn't give me any error, but it is like this condition wasn't satisfied at all.
