Latest version of com.typesafe.akka:akka-testkit_2.12
https://javadoc.io/doc/com.typesafe.akka/akka-testkit_2.12
Current version 2.5.11
https://javadoc.io/doc/com.typesafe.akka/akka-testkit_2.12/2.5.11
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.typesafe.akka/akka-testkit_2.12/2.5.11/package-list