Hi everyone, can someone help me out with what this symbols !! means, please? 🙂 For instance:

private fun <T> buildBody(parameters: T) =
        jacksonObjectMapper()
            .convertValue<Map<String, String>>(parameters!!)
            .let {
                LinkedMultiValueMap<String, String>().apply {
                    setAll(it)
                }
            }

it is a not-null assertion operator: https://kotlinlang.org/docs/null-safety.html#the-operator

oh thank you Luke, will see there 🙂

If you know

parameters

cannot be null (it will throw when it is, using the

!!

) You can use

<T: Any>

to enforce it at compile time and avoid the need to use

!!

Ey Phil thanks it's interesting, I'm just did that change, thank so much!