al jar = ToolProvider.findFirst("jar").orElseThrow()
jar.run(null, null, "--create", "file=foo.jar", "--main-class=foo.bar", "-C", "baz", ".")

I get an overload ambiguity error. I am unsure how to resolve this, as the two methods are in the class (interface) one is an unimplemented method, and the other is a default method

any ideas?

Can you show us the code that defines these methods?

Or maybe create a small example.

val jar = ToolProvider.findFirst("jar").orElseThrow()
        jar.run(null, null, "--create", "file=strat-game.jar", "--main-class=view.StratGame", "-C", outputDirectoryName, ".")

and the JRE has the

java.util.spi.ToolProvider

interface. In this interface it has

int run(PrintWriter out, PrintWriter err, String... args);

and

default int run(PrintStream out, PrintStream err, String... args) {
   // some implementation code
    }

in the same file

so they have the same signature, and are in the same file.

Java would call the implemented method before the default

and avoid the ambiguity

and I am not sure how to resolve this in kotlin because the ambiguity is in the same file

They don't have the same signature,

PrintWriter

!=

PrintStream

. Use

null as PrintStream?

or

null as PrintWriter?

to select the one you want.

that did it! thanks!

question; why

@kagomez uploaded a file: Untitled

is returning false even when the values are the same?

where are the constants coming from?

a companion object

@kagomez uploaded a file: Untitled

mmm yeah that should work

i'm coming from Java background and started to develop/learn Kotlin.. question: if we do not use any Java classes/imports in our code, do we still need a JDK to build just Kotlin files/projects? i was in the impression that all w need is just a JRE to execute Kotlin files? While building/testing kotlin-examples on intellij, i was asked to hookup "JDK" for the project to build

I don’t know much about computers, but I’d be willing to bet the Kotlin compiler and

kotlin-stdlib

rely on JDK-specific things

you don’t need the JDK to run the finished JAR, but to turn Kotlin into JVM bytecode you might

so, can i say this? 1. for building your kotlin project's we will need a JDK 2. to execute JAR/WAR a JRE

I would think so, much like how Java itself works

You can compile Kotlin code to Bytecode, this will then run on a JVM, like Java code or Scala code. BUT you can also compile Kotlin to JavaScript or to native executables. This of course is only possible if you don't have any dependencies to JVM classes. In my opinion the FAQ is a good overview of this: https://kotlinlang.org/docs/reference/faq.html

thanks @elexx and @Shawn

Hello guys

I'm getting this error :

Exception in thread "main" java.lang.NoClassDefFoundError: HiKt (wrong name: Code/HiKt)

My code compiled successfully with kotlinc

But when I run it with kotlin <className> I get the above error