- Collections.<String, String>emptyMap(), Optional.fromNullable(builder.config), PAYLOAD_VERSION);
- state = new ArrayList<>();
- this.actorDelegate = mock(RaftActor.class);
- this.recoveryCohortDelegate = mock(RaftActorRecoveryCohort.class);
+ Collections.emptyMap(), Optional.ofNullable(builder.config), PAYLOAD_VERSION);
+ state = Collections.synchronizedList(new ArrayList<>());
+ actorDelegate = mock(RaftActor.class);
+ recoveryCohortDelegate = mock(RaftActorRecoveryCohort.class);