4.0.0 UTF-8 sample akka-sample-persistence-java8 jar 2.4-SNAPSHOT com.typesafe.akka akka-actor_2.11 2.4-SNAPSHOT com.typesafe.akka akka-persistence-experimental_2.11 2.4-SNAPSHOT com.typesafe.akka akka-testkit_2.11 2.4-SNAPSHOT junit junit 4.12 test org.apache.maven.plugins maven-compiler-plugin 3.1 1.8 1.8 true -Xlint