java.*

testImplementation(kotlin("test-common"))
    testImplementation(kotlin("test-annotations-common"))
    testImplementation(kotlin("test"))
    testImplementation(kotlin("test-junit"))

kotlin.test.Test

expect interface A {
   fun doSomething()
}

actual interface A {
   actual fun doSomething() { /*do sth. */ }
}

maven-publish

publishing {
    publications {
        maven(MavenPublication) {
            pom {
                name = 'projectname'
                description = 'Whatever ...'
            }
            artifactId project.name
            groupId project.group
            version project.version

            // Without the following line, these gradle build scripts publish no jar to maven
            // We have not succeeded in finding out why (as of May 2019)
            from components.java
        }
    }
    repositories {
        maven {
            def releasesRepoUrl = "(url here)"
            def snapshotsRepoUrl = "(url here)"
            url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
            credentials {
                username mavenUser
                password mavenPassword
            }
        }
    }
}

unrecognized selector sent to instance

@ThreadLocal 
object ServiceLocator {
    val myObject = MyObject()
}

class MyPresenter(val myView: MyView, val myObject: MyObject) {
    ...
}

class ViewController: UIViewController, MyView {
    let presenter = MyPresenter.init(myView: self, myObject, ServiceLocator.init().myObject)
    ...
}

kotlin.mpp.enableGranularSourceSetsMetadata=true

gradle.properties

.h

KotlinNumber

KotlinUByte

Sqldelight_runtimeTransacter

public

At this point, test tasks for Kotlin/JS are created but do not run tests by default; they should be manually configured to run the tests with a JavaScript test framework.

Unresolved Reference

proj
  |_ commonMain
  |_ commonTest
  |_ jvmMain
      |_ kotlin
          |_ com.my.package.keys
              |_ KeyPairJ.java
  |_ jvmTest
      |_ kotlin
          |_ com.my.package
              |_ KeyPairTest

e: ../src/jvmTest/kotlin/com/my/package/KeyPairTest.kt: (13, 19): Unresolved reference: KeyPairJ

//ommitted some things

kotlin {
    jvm()
    js()

    sourceSets {
        //omitted some stuff
        val jvmMain by getting {
            dependencies {
                implementation(kotlin("stdlib-jdk8"))
                //other stuff- ktor, coroutines, etc.
            }
        }
        val jvmTest by getting {
            kotlin("test")
            kotlin("test-junit")
        }
    }
}

commonMain

jvmMain

linkFramework

Task :linkMobileSharedDebugFrameworkIos
e: Compilation failed: org.jetbrains.kotlin.backend.common.descriptors.WrappedPropertyDescriptor@21f27bb5 is not bound

 * Source files:
 * Compiler version info: Konan: 1.3.60 / Kotlin: 1.3.60
 * Output kind: FRAMEWORK

e: java.lang.IllegalStateException: org.jetbrains.kotlin.backend.common.descriptors.WrappedPropertyDescriptor@21f27bb5 is not bound
        at org.jetbrains.kotlin.backend.common.descriptors.WrappedDeclarationDescriptor.getOwner(WrappedDescriptors.kt:98)
        at org.jetbrains.kotlin.backend.common.descriptors.WrappedPropertyDescriptor.getReturnType(WrappedDescriptors.kt:816)
        ...

// My library
kotlin.sourcesets.named("jvmMain") {
  dependencies {
     runtimeOnly("$lwjglGroup:$lwjglName:$lwjglVersion:natives-$os")
  }
}