Kotlin via a Gradle build script isn't executing a WebDriver spek - gradle

Question

Repo with a tight reproduction of my problem: https://github.com/paul-hammant/kotlin-webdriver-snafu
The spec, that could not be simpler:
class WebDriverSpeks : Spek({
ChromeDriverManager.getInstance().setup()
val co = ChromeOptions()
val chromeDriver = ChromeDriver(co) as WebDriver
beforeGroup {
chromeDriver.get("https://yahoo.com/")
}
describe("yahoo") {
it("should have index.html") {
assertEquals(chromeDriver.title, "hello")
}
}
afterGroup {
chromeDriver.close()
}
})
There's no red lines denoting compile failures in Intellij, yet when the gradle build runs it complains about a transitive dep:
$ gradle build
Download https://jcenter.bintray.com/org/slf4j/slf4j-api/1.7.24/slf4j- api-1.7.24.jar
w: Runtime JAR files in the classpath should have the same version. These files were found in the classpath:
/Users/paul/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk8/1.2.30/f916048adc012c9342b796a5f84c0ac6205abcac/kotlin-stdlib-jdk8-1.2.30.jar (version 1.2)
/Users/paul/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.2.30/ca12c47fc1e3a7316067b2a51e2f214745ebf8c5/kotlin-stdlib-jdk7-1.2.30.jar (version 1.2)
/Users/paul/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.0.6/3d499d3b7768f88c4796e5a1e357933e11a8936d/kotlin-reflect-1.0.6.jar (version 1.0)
/Users/paul/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.2.30/2dfac33f8b4e92c9dd1422cd286834701a6f6d6/kotlin-stdlib-1.2.30.jar (version 1.2)
w: Consider providing an explicit dependency on kotlin-reflect 1.2 to prevent strange errors
w: Some runtime JAR files in the classpath have an incompatible version. Consider removing them from the classpath or use '-Xskip-runtime-version-check' to suppress this warning
e: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
class org.openqa.selenium.chrome.ChromeDriver, unresolved supertypes: org.openqa.selenium.remote.RemoteWebDriver
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileTestKotlin'.
> Compilation error. See log for more details
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 6s
5 actionable tasks: 5 executed
The allegedly unresolved supertype org.openqa.selenium.remote.RemoteWebDriver is in a selenium-remote-driver, and
If I delete ~/.gradle or ./build and try again it is the same.
If I inspect the pom.xml for selenium-java, I can see a dependency on selenium-remote-driver (which exists). See here - http://central.maven.org/maven2/org/seleniumhq/selenium/selenium-java/3.11.0/selenium-java-3.11.0.pom. The one in jcenter is the same.
I don't know why Gradle isn't finding selenium-remote-driver. I have an extra testCompile commented out in the Gradle script but nothing gets fixed if it is commented in.
I think this is a problem in Gradle, or some Gradleized treatment of Maven Central that I don't know much about but is online somewhere. I don't think it is a Kotlin problem. I've used Selenium since it started and am super familiar with it (I've made 100 Maven projects that use Selenium) so I don't think that is it. Of course, I could be wrong with where the root cause is.

Answer 1

Well, this did the trick:
rm -rf ~/.m2/repository/org/seleniumhq/
I didn't know Gradle used the local Maven repo cache. It must have been corrupt somehow.
Hopefully this helps someone another day.