Latest version of com.lightbend.akka:akka-persistence-spanner_2.12
https://javadoc.io/doc/com.lightbend.akka/akka-persistence-spanner_2.12
Current version 1.0.0-RC6
https://javadoc.io/doc/com.lightbend.akka/akka-persistence-spanner_2.12/1.0.0-RC6
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.lightbend.akka/akka-persistence-spanner_2.12/1.0.0-RC6/package-list