Hi folks, I'm using kotlin with intellij and gradl...

# announcements

[jfburdet]

Hi folks,
I'm using kotlin with intellij and gradle, and have weird problem : I can access (build+run) java.io.InputStream.readAllBytes() in the IDE, but when running the project with gradle, i'm getting an "Unresolved reference: readAllBytes"
readAllBytes seems included in Java12 but not in Java1.8 ...
Any quick hint ?
I can provide a sample project to reproduce that ...

[Uzi Landsmann]

InputStream.readAllBytes() was added in java 9. Which java version are you using when running gradle?

[christophsturm]

just use the kotlin method https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/java.io.-file/read-bytes.html

[jfburdet]

@Uzi Landsmann
In not sure on to specify in gradle to use Java12 ?

[Uzi Landsmann]

Gradle uses whatever is defined in your JAVA_HOME.

[jfburdet]

@Uzi Landsmann It makes sense.
My environnement defaults to java-8-opensdk ...

I'll tweak that and it should be ok.

[jfburdet]

(confirmed : on archlinux, "sudo archlinux-java set java-12-openjdk" solved my problem. Thx !)

[christophsturm]

if you just use the kotlin method instead your code will also work with 1.8

[jfburdet]

@christophsturm
Yes, but my code was about to read all bytes of a DigestInputStream to calculate some sha-256 hash.

[jfburdet]

(and not a File)

[christophsturm]

I think there’s also a method for input stream