Groovy Method pointer operator

Hello，
I use IntelliJ IDEA 2020.3.2 (Ultimate Edition) Build #IU-203.7148.57, built on January 26, 2021

When I write a groovy script lisk following:

class Creature {
    String type

    String getType() {
        return "From getter, ${type}"
    }

    String getTypeWithArg(String arg) {
        return "${type}&${arg}"
    }
}

def cat = new Creature(type: 'cat')
def aMethod = Creature.&getTypeWithArg
println(aMethod (cat,"arges"))

I got a hit：

but I can run it as expected and get the answer : cat&arges.

Am i missing some configuration for groovy or it is something wrong in IDEA this version there?