Hey guys, I couldn’t find the JDK9, can I put JDK10's path instead of JDK9's path? (I mean I already did it and it works. I want to send PR to README.md)

I’m trying to debug a code generator issue, wonderin if it is possible to step through the kapt gradle plugin without recompiling? When I try it with

-Dorg.gradle.debug=true

I can’t see the kapt source

I'm having trouble building, and I believe I've followed all of the instructions right, but every time I try to run

coreLibsTest

I get this:

> Could not target platform: 'Java SE 10' using tool chain: 'JDK 8 (1.8)'.

I set all of the environment variables:

JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/bin
JDK_16=/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin
JDK_17=/Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home/bin
JDK_18=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/bin
JDK_9=/Library/Java/JavaVirtualMachines/jdk-9.0.4.jdk/Contents/Home/bin

Anyone have a hunch at what I might be doing wrong that it's trying to target Java 10?

I've asked if I can just go on with working on a new feature, why has no one answered? It may be a silly question, but I can't start and then watch my work thrown away!

@Andrew Albert You can look for the issues with

#{Up For Grabs}

tag, these usually do not require to be discussed.

In general when submitting a PR, is there anyone we should be assigning them too, or does the JB team go through them and do the assigning themselves?

The Slack badge in the ReadMe.md file seems to be broken. How can I fix this? https://github.com/JetBrains/kotlin

Hey guys 🙂 I am starting to write an IDEA plugin, which adds an action on some files. I get to a point where I have a string which is the fully qualified name of a Java or Kotlin class (e.g. "android.widget.TextView") and I need some kind of descriptor (e.g. PsiJavaElement/KtElement or similar). All I have access to is the com.intellij.openapi.actionSystem.AnActionEvent event (hence the Project and everything available in the event) and I suppose the class is in the classpath of the project. Can anyone give me some pointers on how to achieve that ? Thanks a lot !

question about kontributing to tests of STD-lib: I saw the file jvm-minimal-for-tests. I have two questions about it: - Does it do what i want: setup for kontributing to standard tests? - If it does, the built crashes on my machine telling "pill-configurable" not found, can this be fixed?

I'm trying to clone the kotlin project to contribute but I'm not quite sure if I'm doing that part right. Tried to read the README for hints but there was really nothing on cloning. Cloning it takes forever in intellij git, and when I download the project as a zip and I try to open it, it crashed my file explorer. What reason would there be for that? Am I missing something? I know the project is huge but what exactly am I supposed to do? I've cloned it before but it's like I can't for some reason my computer just doesn't like it.

do i really need jdk9 installed to build kotlin? or can i point jdk9 to a jdk10?

Is it possible to get a LexicalScope for Java class descriptors ? Or is this concept only tied to Kotlin classes ? I'd like to get the descriptor of an extension method of a Java class but I don't know how to achieve that..

Hi everyone, trying myself on my first PR on Kotlin…i’m having trouble testing my code where the idea triggers some errors running a generated test class (IntentionTestGenerated) .….as it seems i guess i shouldn’t fiddle around in the module settings…anyone ran into a similar problem?

/Users/timoobereder/Documents/Projects/kotlin/libraries/stdlib/src/kotlin/collections/Arrays.kt
Error:(66, 72) Kotlin: [kotlin-stdlib_main] Type parameter cannot have any other bounds if it's bounded by another type parameter
Error:(74, 12) Kotlin: [kotlin-stdlib_main] Declaration annotated with '@OptionalExpectation' can only be used in common module sources
Error:(115, 12) Kotlin: [kotlin-stdlib_main] Declaration annotated with '@OptionalExpectation' can only be used in common module sources
/Users/timoobereder/Documents/Projects/kotlin/libraries/stdlib/src/kotlin/collections/Collections.kt
Error:(206, 72) Kotlin: [kotlin-stdlib_main] Type parameter cannot have any other bounds if it's bounded by another type parameter
/Users/timoobereder/Documents/Projects/kotlin/libraries/stdlib/src/kotlin/collections/Maps.kt
Error:(175, 72) Kotlin: [kotlin-stdlib_main] Type parameter cannot have any other bounds if it's bounded by another type parameter
/Users/timoobereder/Documents/Projects/kotlin/libraries/stdlib/src/kotlin/text/Strings.kt
Error:(283, 72) Kotlin: [kotlin-stdlib_main] Type parameter cannot have any other bounds if it's bounded by another type parameter
Error:(294, 72) Kotlin: [kotlin-stdlib_main] Type parameter cannot have any other bounds if it's bounded by another type parameter

i’m on mac osx

Hello! I tried convincing my team to start using some Kotlin in our Java projects. We decided on using Kotlin data classes but ran directly into a problem: our classes contain many fields, and in order to instantiate them (from Java) we had to use monstrous constructors, wheres before that we used Lombok builders. I investigated some time on trying to find a way to create builders for data classes but couldn't find any. So now I wonder: wouldn't it be great if data classes contained builders by default? That would certainly increase interoperability with Java. Oh and I'm posting it here because I thought maybe I'd try to implement it myself.

Another thing to add: it seems like variations of

measureTimeMillisWithResult

already exist in the codebase (

core/util.runtime/src/org/jetbrains/kotlin/utils/addToStdlib.kt

and

plugins/kapt3/kapt3-base/src/org/jetbrains/kotlin/kapt3/base/util/misc.kt

) which could be replaced by the fixed version proposed.

This message was deleted.

Is there an easy way to find out block statements of the same type in a kt file? so far i only played around with the

KtExpression

method

nextStatement()

, using it more than once on one expression (especially when referenced) can result in null and behaviour i don’t want. e.g.: i want to iterate through a bunch of reoccurring types and save them in a list.

Hi guys. I am learning Kotlin and at the same time blogging about it (currently only Turkish). I would like to contribute to the project. I think I can start with the documentation. How can I start?

Hi everyone! I found that in Kotlin there is no inspection for empty parentheses in annotation usages. I checked that there was no issue related to that specific thing in the YouTrack and created a new one [1]. Would it be a good place for me to make a first contribution? If so I would gladly grab this issue. [1] https://youtrack.jetbrains.com/issue/KT-28118

Recently stumbled upon this issue: https://youtrack.jetbrains.com/issue/KT-11253 Seems pretty straightforward to implement, plus there is a precedent I'd like to work on this, even though it's not "up-for-grabs", what do I do here?

Is there a general Youtrack issue for fixing minor technical debt issues? How is this done?

Anyone? I’m happy to have the response be “nope, don’t want it” - although a dialogue on why/why not would be great, so I and others can understand how to better kontribute!

Hi, I am an undergrad computer science student looking to contribute to the language. I would like to do some bug fixes that have been reported at YouTrack Kotlin. Are there any members willing to help me get started? Thanks a lot!

Hi, i have a question regarding the

plugin-common.xml

files. Is it a responsibility of a contributor to fix those by either merge or rebase master onto the feature branch or should we just ignore those files until the feature is as its supposed to be and the reviewers will fix those before merging into master?

Also regarding the

IntentionBasedInspection

class. Some Inspections, that are contained in the intentions folder, use this class, but at the same time it’s deprecated.

"Please do not use for new inspections. Use AbstractKotlinInspection as base class for them"

…so i did use the

AbstractKotlinInspection

class and wondering if that is the right way… https://github.com/JetBrains/kotlin/pull/2082

i have JDK 6-12 installed with 11 being my default. When trying to build, I set

JAVA_HOME

to 8 yet multiple parts of the build seem to be selecting 12 (the latest) no matter what I do

> Configure project :kotlin-reflect
Cannot find file by paths: [jre/lib/rt.jar, ../Classes/classes.jar] in /Library/Java/JavaVirtualMachines/jdk-12.jdk/Contents/Home

> Task :kotlin-annotations-jvm:compileJava FAILED
warning: [options] bootstrap class path not set in conjunction with -source 6
error: Source option 6 is no longer supported. Use 7 or later.
error: Target option 6 is no longer supported. Use 7 or later.

> Task :kotlin-runtime:compileJava FAILED
warning: [options] bootstrap class path not set in conjunction with -source 6
error: Source option 6 is no longer supported. Use 7 or later.
error: Target option 6 is no longer supported. Use 7 or later.

Can anyone tell me where is the test code generation logic in the repo?

Out of professional curiosity, does anyone know why the Kotlin team went with val/var as opposed to const/let naming conventions? I know the difference between the two, but someone asked me if I happened to know the reason behind the naming and I didn't. Nor am I sure there was an explicit reason but I thought I'd ask.

i'm trying to add a bytecode text test and getting really weird values for some instructions. For example, the bytecode dump contains 3 LDC instructions each for different strings. When I add 1 separate LDC assertions for each of the strings i get a failure saying that there were actually 22(!) of the first string, 1 of the second, and 5 of the third. Is the format of these assertion comments documented anywhere? It works when I remove the string part and just test for 3 LDCs... they're a regex? i added escapes for

|

and now things work

I am wondering why in Kotlin JS reflection qualifiedName is not available. It is easy to parse kjsm files and get whatever meta information is needed, but you are not able to match it to objects because only simpleName is available in KClass. I am trying to leverage meta information to make https://mockk.io work for JS platform. Are there any objections to add qualifiedName now? I will do PR