I really need to call a Kotlin method with reified type parameter from Java. Is there no workaround?...

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[poohbar]

I really need to call a Kotlin method with reified type parameter from Java. Is there no workaround? I am willing to add utilities or even use reflection if needed.

[Dominaezzz]

You can make a helper method with the specific type. (Maybe a compiler plugin)

[Roukanken]

if it's your reified method, you could probably refactor it to call a non-reified overload, but with extra Class<T> parameter

if not, it might have that overload anyways

[poohbar]

Good idea, to just make a type-specific helper method to call.

[poohbar]

@Roukanken unfortunately it’s not my method

[ephemient]

an inline fun (which is the only way <reified T> is allowed) is not callable on JVM. it is compiled to a chunk of bytecode which stored in the @kotlin.Metadata of the containing class. when a Kotlin caller calls it, the Kotlin compiler copy-pastes that bytecode at the callsite. there is no way to do that in Java, so you'd have to replicate the function in Java instead.

[ephemient]

if all the inline fun <reified T> function does is call T::class.java then pass it on to another (non-inline) function, then it is easy to replicate the function in Java

[ephemient]

if it is not, then it is not