Configure dokka and work around Kotlin/dokka#294

build.gradle.kts

@@ -1,4 +1,5 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.jetbrains.dokka.gradle.DokkaTask
 
 plugins {
     `maven-publish`
@@ -88,6 +89,12 @@ tasks.withType<Jar> {
     }
 }
 
+tasks.withType<DokkaTask> {
+    // Workaround for https://github.com/Kotlin/dokka/issues/294
+    outputFormat = if(JavaVersion.current().isJava10Compatible) "html" else "javadoc"
+    outputDirectory = "$buildDir/javadoc"
+}
+
 val githubToken: String? by project
 val ghActualToken = githubToken ?: System.getenv("GITHUB_TOKEN")
 if (ghActualToken != null) {