Do you mean Jackson?

no

jankson is a library written by my friend

i think it almost completely conforms to JSON5 already

Suppose some java dependency declares an interface:

public interface JavaIFace {
    void f(String s);
}

A kotlin usage (seperate module) is unsure of nullability, so the clever developer assumes it’s nullable

class KotlinImpl : JavaIFace {
    override fun f(s: String?) {}
}

If the library now adds

@NotNull

to the argument,

KotlinImpl::f

overrides nothing and fails to compile now. Correct? This change breaks source compatibility for library author

Correct, it’s quite common problem

Android even introduced special RecentlyNullable/RecentlyNonNullable annotation to mitigate this problem (to have transition period and give time to migrate existing code) https://android.googlesource.com/platform/tools/metalava/+/fcb3d99ad3fe17a266d066b28ceb6c526f7aa415/stub-annotations/src/main/java/android/support/annotation/RecentlyNullable.java

man, i miss this language. i've had a job for 7 months now that has me coding in .net. c# is a pretty nice language (it even has a handful of syntactic sugars that even kotlin doesn't), but on the whole, it's just not nearly as enjoyable to code in as my favorite one... this one! coding in your day job kills your desire to code in your free time 😕

Is there a way to apply an extension function only to data classes?

to avoid X-Y problem, this isn't my primary goal, I'm looking to generate changesets on data classes, like Ecto does in Elixir.

Is there a manager like

sdkman

to automatically install and upgrade Kotlin preview versions (like

1.4-M2

)? Or is there any tweak we can apply on

sdkman

to achieve it?

Hello all Is there a way to cache in the url with all its content even videos and reuse it offline ?

hi, where can i find '.kotlin_metadata's format?

Hey, just wondering if I can get a `KFunction<*>`'s owner class (/ owner class name) and name Crucially I can't evaluate the method's parameters, as in this case that causes a

ClassCircularityException

, and so

func.javaMethod

is unfortunately not viable

Hi @jeggy I assume you tried googling it? 🙂

https://twitter.com/kotlin/status/1278712617792679936 Comparing two strings irrespective of their capitalization? Don’t create new strings with toLower() to compare them. Instead, use equals(), which has an option to ignore case when comparing two strings. This way you won’t have to allocate any extra strings to do the comparison. https://t.co/QketYGVz5a Twitter

Hello has anyone worked with Google Places API?

I added an onclick listener to and edit text field but when the user selects the text field the Google's Place intent isn't loaded. I have to select the textfield again for the intent to load. I'm not sure why this is. can someone help... I've looked on Stackoverflow and google but can't find any solutions

Hi - can't seem to figure out what the term is for a type such as Table.(UpdateStatement)->Unit (I understand the Unit part, but no idea how the two other classes relate to each other, and can't find the documentation).

Never mind, figured it out right after posting of course

Any one knows if kotlin-JVM can load a dll file that depends on windows methods and use them on Linux?

Kotlin 1.4-M3 is Out: Standard Library Changes Today we’re glad to present the last milestone preview of Kotlin 1.4 – 1.4-M3. In this post, we’ll guide you through the changes this preview brings to the Kotlin standard library. Other components are also getting updates in M3; we’ll cover them soon in another blog post with the release candidate version (1.4-RC), which will […]

https://twitter.com/kotlin/status/1280239525466378241 We've released Kotlin 1.4-M3! Check out the blog post, where we guide you through the updates to the standard library. We look forward to your feedback. https://t.co/LgA3bRQEb5 https://t.co/2uDQtMBC2P Twitter

https://twitter.com/kotlin/status/1280433924632698881 Did you know there are a number of convenient extension functions for working with files? useLines, for example, uses a sequence and closes the reader once the processing is completed. Read more about all Reader extensions at https://t.co/IVVAMvWFsY https://t.co/pA8fkAGSoH Twitter

Or is there another way?

https://twitter.com/kotlin/status/1280858302675640320 Were you planning to use Kotlin for server-side or mobile multiplatform development but ultimately decided not to go through with it? We’d love to know why. If you’d like to participate in a brief interview, please fill out this form and we’ll get in touch https://t.co/6T0xcU77CP Twitter

Does anyone know if there's a way to get the kotlin (stdlib) classpath path from within a maven pom.xml? I'm trying to enable type resolution for detekt, which needs a classpath. I can use

${java.class.path}

, which gives me the jaca classpath, but how can I get this for kotlin? (I get complaints about the kotlin stdlib missing)

Does anyone know if there is a nifty way to tell how many days in a given week are part of the month? The input would be a ZonedDateTime. ie. First week of july started on a Wednesday so the answer would be 5 (Java DayOfWeek gives Monday a value of 1). Same thing for the last week of the month (ends on a Friday) so we would get back 5 again. A date like the 9th would return 7