import akka.persistence.SaveSnapshotSuccess;
import akka.persistence.SnapshotMetadata;
import akka.persistence.SnapshotOffer;
+import akka.protobuf.ByteString;
import akka.testkit.TestActorRef;
import akka.testkit.javadsl.TestKit;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.Uninterruptibles;
-import com.google.protobuf.ByteString;
import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;