ArgumentMatchers support for @NonNull / Kotlin non-null

Hello folks,

There is an issue when using ArgumentsMatcher.eq() method with either:

• A Java @NonNull annotated param
• A Kotlin non-null param

Example (in kotlin):

• Let’s say you have a method: doSomething(test: String) {...}
• When trying to do: Mockito.verify(mock).doSomething(ArgumentMatchers.eq("toto"))

At runtime the test is going to fail with message: java.lang.IllegalStateException: ArgumentMatchers.eq("toto") must not be null

Is there a way to return NonNull objects from the eq method?

Thank you in advance 😃

[capezzbr]

How is this still an outstanding issue?

[lemartin]

The eq problem can be addressed quite easily. A different name was only chose to not get into import hell.

fun <T : Any> safeEq(value: T): T = eq(value) ?: value