Latest version of com.typesafe.akka:akka-stream-testkit-experimental_2.11
https://javadoc.io/doc/com.typesafe.akka/akka-stream-testkit-experimental_2.11
Current version 1.0-RC4
https://javadoc.io/doc/com.typesafe.akka/akka-stream-testkit-experimental_2.11/1.0-RC4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.typesafe.akka/akka-stream-testkit-experimental_2.11/1.0-RC4/package-list