[rules-users] Null safe MVEL expressions

[Ingomar Otter]

Folks,
it seems that since 2.0 MVEL supports null-safe MVEL expressions, ie.
fact.?property.subproperty == foo will evaluate to false (instead of  
failing) if property is null.
I tried this some time ago and  it seems that the drools parser does  
not like the "?".
Is anybody using this?

Cheers,
   Ingomar