Hello,
first sorry for my bad english.
I want to declare a variable of type List

rule "userrole"

when
$user1: User (userid1: userId)
$user2: User (userId == userid1)
then
    List L = new ArrayList();
        if (L.contains($user1.getname())== false)
        {
            L.add($user1.getname());
            System.out.println("hello");
        }
    end

the problem is everytime the List don't save all element every execution the variable list is intialised as empty is there other place to declare List?
(I try after when but error of parsing)

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