Hi, is there any min versions requirement of jvm/a...

# ktor

[Jiri Bruchanov]

Hi,
is there any min versions requirement of jvm/android for ktor-server ?
I'm having some issues with running latest version 1.3.0-beta-2 on android 4.4 and 5 and probably any other with jvm1.6, because of

java.lang.NoSuchMethodError: No virtual method toPath()Ljava/nio/file/Path; in class Ljava/io/File; or its super classes (declaration of '<http://java.io|java.io>.File' appears in /system/framework/core-libart.jar)

also with 1.3.0-beta-1 I'm getting following
ktor-server-netty

java.lang.NoClassDefFoundError: io.ktor.application.ApplicationEvents$subscribe$1
        at io.ktor.application.ApplicationEvents.subscribe(ApplicationEvents.kt:22)
        at io.ktor.server.engine.BaseApplicationEngine.<init>(BaseApplicationEngine.kt:31)
        at io.ktor.server.engine.BaseApplicationEngine.<init>(BaseApplicationEngine.kt:21)
        at io.ktor.server.netty.NettyApplicationEngine.<init>(NettyApplicationEngine.kt:27)
        at io.ktor.server.netty.Netty.create(Embedded.kt:14)
        at io.ktor.server.netty.Netty.create(Embedded.kt:12)
        at io.ktor.server.engine.EmbeddedServerKt.embeddedServer(EmbeddedServer.kt:79)
        at io.ktor.server.engine.EmbeddedServerKt.embeddedServer(EmbeddedServer.kt:67)
        at io.ktor.server.engine.EmbeddedServerKt.embeddedServer(EmbeddedServer.kt:36)
        at io.ktor.server.engine.EmbeddedServerKt.embeddedServer$default(EmbeddedServer.kt:34)
        at com.scurab.android.anuitor.service.KtorServer.start(KtorServer.kt:50)
        ....

ktor-server-jetty

MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)

[Jiri Bruchanov]

looks like if I avoid using anything what depends on Path in routing it works fine, which was just

static { files(File(root)) }

in my case...

[cy]

Is Path available from the beginning?

[Jiri Bruchanov]

beginning of what ?

[cy]

Android 😁

[cy]

Perhaps we need to support Paths as well. This is my bad: we simply didn't try to make it work on Android at all

[cy]

File should work

[Jiri Bruchanov]

iirc java's Path is java1.7, so not really...
Android Studio supports just most of syntax features, but not the API...
this needs to be API26+ if I'm not mistaken to have full 1.7jvm

[Jiri Bruchanov]

@cy
is there some simple way to have ^^ static in my case ?
I wrote this

fun Route.supportFiles(folder: File) {
    fun File?.combine(file: File) = when {
        this == null -> file
        else -> resolve(file)
    }
    val pathParameterName = "static-content-path-parameter"

    val dir = staticRootFolder.combine(folder)
    get("{$pathParameterName...}") {
        val relativePath = call.parameters.getAll(pathParameterName)?.joinToString(File.separator) ?: return@get
        val file = dir.combineSafe(relativePath)
        if (file.isFile) {
            call.respond(file.readBytes())
        }
    }
}

and then

static { supportFiles(File(root)) }

which works fine, but it's just quick copy&paste of the ktor
code with explicit file reading