Why don't I have the `AutoCloseable.use(...)` fun...

# announcements

[Chilli]

Why don't I have the AutoCloseable.use(...) function? It should be there, according to the stdlib documentation...

Untitled

[Chilli]

https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/use.html

[Chilli]

Now that's really weird:
I'm trying to make my own short implementation with try-finally. Then, it shows me an inspection to change it to use. If I click I want to change it to use, it starts erroring.

[ephemient]

what java are you targeting / what stdlib are you using

[ephemient]

AutoCloseable.use() is in kotlin-stdlib-jdk7 as the interface isn't in java 6 (which is what the base kotlin-stdlib targets)

[Chilli]

I've got this little thing only

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
    kotlinOptions.jvmTarget = "1.8"
}

in build.gradle

[Chilli]

I don't have stdlib set as a dependency, so I guess I have the base one?

[ephemient]

hmm it should be picking the right one... what does gradle dependencies say?

[Chilli]

runtimeClasspath - Runtime classpath of compilation 'main' (target  (jvm)).
+--- org.jetbrains.kotlin:kotlin-stdlib:1.4.20
|    +--- org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20
|    \--- org.jetbrains:annotations:13.0 -> 16.0.1
...

[Chilli]

Here are my plugins:

plugins {
    id "application"
    id "org.jetbrains.kotlin.jvm" version "1.4.20"
    id "com.github.johnrengelman.shadow" version "6.1.0"
}

Don't know if it's needed, but here you go

[ephemient]

adding/removing kotlinOptions.jvmTarget = "1.8" changes the stdlib dependency for me, not sure what's different for you…

[Chilli]

Maybe that tasks.withType thing doesn't work?

[ephemient]

you aren't explicitly mentioning stdlib in the dependencies block, are you?

[Chilli]

No, I am not

[Chilli]

Wait

[ephemient]

because that will skip the automatic stdlib dependency

[Chilli]

I must be blind, I would've sworn it's not there yet it apparently is

[Chilli]

Well, that did indeed fix the problem, thanks a lot

[Chilli]

Just in case you know something more than I do about Gradle or rather IntelliJ Idea:

//noinspection GroovyAssignabilityCheck
tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
    kotlinOptions.jvmTarget = "1.8"
}

Without the comment, Idea shows me a warning Cannot infer argument types, but Gradle builds everything without problems. Any way to fix it?

[ephemient]

no clue, I use the Gradle Kotlin DSL 🙂

[Chilli]

Okay then, thanks for the help anyway