ty

hello everyone, for those in need of java interop and better null checks, you probably make use of JSR305's

@Nonnull

annotation. I’d appreciate if you take 1 minute to fill out this survey https://docs.google.com/forms/d/e/1FAIpQLScf0CqaECFs-1VbwxAwX9MSgk5DmpXM6ifj5B3g-i2j17YamQ/viewform

@aalmiray survey requires a google account?

Using Gradle build cache with Kotlin This is a guest blog post from Eric Wendelin software engineer for Gradle   A build cache allows Gradle to reuse task output from any previous invocation, including those from other machines. Kotlin 1.2.21 allows Kotlin projects to make use … Continue reading →

@pniederw yes, in order to ensure single response by the same person

personal data is not collected

Hi, I am interested in how people manage system properties in kotlin. Do you use some libs, or use imbedded approache?

I try Konfig, but I found it a bit weird with gradle.properties

@mike_shysh https://github.com/Kotlin/kotlinx.serialization/blob/master/formats/README.md seem slike Hocon is going to be supported in

kotlinx.serialization

Where can I report bugs related to kapt?

Do you by any chance know if I should fire a bug that kapt can't find a class marked with annotation if it's package ends with .import( foo.bar.anotherpackage.import.MyClass)? It compiles fine in kotiln, IDE doesn't give out any errors. So what gives?

shouldn't the

?: listOf()

drop in an empty list so it's not null?

if the param type is

List<Item>

, doesn’t the IDE say anything about using safe navigation on it?

it kind of looks like you might want to make it

List<Item>?

so you can pass null in

maybe I’m missing some context though

I don't want to pass it null, thats why i'm passing it

input?.map {} ?: listOf()

, so it has a default empty list

but somehow it's still getting null

I mean, if you’re getting null in (from Java, I’m assuming), and that’s a case you have to handle, you should make the parameter nullable, but make the field non-null

it's a data class, the parameter is the property.

he didn't say anything about Java, he's passing it

metadata?.map { ... } ?: listOf()

metadata

comes from parsing XML, which is why it might be null, I just want to pass an empty list if it's null

but is something wrong with that syntax? It seems straightforward to me

I see nothing wrong with it personally

the

test3

fun won't compile

is there any way to be able to chose over the extension functions like this?

Is this right? Even though

C

already derives from

B

, so I'm "redeclaring"

A

? Or is there a better way?

That looks fine to me, it means that

C

will delegate all methods for

A

to

aImpl

, you'll then need to implement `B`'s methods "normally".