package org.opendaylight.controller.cluster.raft.behaviors;
import akka.actor.ActorRef;
-import javax.annotation.Nullable;
+import org.eclipse.jdt.annotation.Nullable;
import org.opendaylight.controller.cluster.raft.RaftActorContext;
import org.opendaylight.controller.cluster.raft.RaftState;
import org.opendaylight.controller.cluster.raft.messages.AppendEntriesReply;