I’m trying to add a nullable `@RequestParam` of type `Int`, but get ``` "Optional int parameter 'p'...

# spring

[oskarh]

I’m trying to add a nullable @RequestParam of type Int, but get

"Optional int parameter 'p' is present but cannot be translated into a null value due to being declared as a primitive type. Consider declaring it as object wrapper for the corresponding primitive type."

Any way I can force Kotlin to use the wrapper class Integer instead of the primitive type?

[Czar]

if it's optional it should be Int?

[oskarh]

Yeah, that works. I tried having a default value for it

[oskarh]

But changed to elvis operator now

[oskarh]

Thanks!

[Czar]

here problem is that if you mark @RequestParam as optional Spring will pass null, so default value is ignored. You can have it as Int to avoid elvis, but instead of Kotlin default value you have to use @RequestParam(name="blabla", required=false, defaultValue="yourDefault")

[oskarh]

Cool, thanks 🙂