How to `List::clas.java` in kotlin

Question

I want to use ArgumentCaptor in kotlin.

What I've done :

val c := ArgumentCaptor<List<MyClass>, 
List<MyClass>>.forClass(List<MyClass>::class.java)

but it says

Only classes are allowed on the left hand side of a class literal

"Type Erasure". Take a look at this [SO answer](https://stackoverflow.com/questions/39679180/kotlin-call-java-method-with-classt-argument) for a very good explanation. — Les, Nov 09 '17 at 13:09

score 10 · Accepted Answer · answered Nov 09 '17 at 19:22

ArgumentCaptor<List<MyClass>> c = ArgumentCaptor.forClass(List<MyClass>.class);

doesn't compile in Java either, because at runtime <MyClass> isn't part of the type due to erasure.

Instead, consider using com.nhaarman:mockito-kotlin which wraps Mockito with an API more suitable for use from Kotlin.

val c = argumentCaptor<List<MyClass>>()

1 Answers1