Improve Follower's Snapshot

Use List.of() to communicate empty lists.

Change-Id: I5cebcde9e92b11a82be0bddf3645eeb8bc909895
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit 703c260bebba0a8f7efa85edef4ad4d359c59cda)

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
index fa28cbf718748e5800da017d5eed69726fcbd1c9..4f7a47314f70cfba8cf05933812fddd6ac427eeb 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
@@ -18,7 +18,6 @@ import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Stopwatch;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Optional;
@@ -641,7 +640,7 @@ public class Follower extends AbstractRaftActorBehavior {
 
                 Snapshot snapshot = Snapshot.create(
                         context.getSnapshotManager().convertSnapshot(snapshotTracker.getSnapshotBytes()),
-                        new ArrayList<>(),
+                        List.of(),
                         installSnapshot.getLastIncludedIndex(),
                         installSnapshot.getLastIncludedTerm(),
                         installSnapshot.getLastIncludedIndex(),