// JUnit 5's APIs need java.util.function.Function and java.util.Optional from API 24.
      signature(rootProject.libs.signature.android.apilevel24) { artifact { type = "signature" } }
    } else {
      // Everything else requires Android API 21+.
      signature(rootProject.libs.signature.android.apilevel21) { artifact { type = "signature" } }
    }

    // OkHttp requires Java 8+.

plugins {
  kotlin("jvm")
}

val platform = System.getProperty("okhttp.platform", "jdk9")
val testJavaVersion = System.getProperty("test.java.version", "21").toInt()

tasks.withType<Test> {
  useJUnitPlatform()
  onlyIf("By default not in CI") {
    System.getenv("CI") == null
      || (project.hasProperty("containerTests") && project.property("containerTests").toString().toBoolean())
  }

  jvmArgs(
    "-Dokhttp.platform=$platform",