From: Robert Varga <rovarga@cisco.com>
Date: Fri, 7 Nov 2014 19:50:32 +0000 (+0100)
Subject: Add serialVersionUID to Serializable classes
X-Git-Tag: release/lithium~896^2
X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=commitdiff_plain;h=b131db5779e46e9555aa3358c5b6aa13109ef8f5

Add serialVersionUID to Serializable classes

Each serializable class withouth serialVersionUID produces an eclipse
warning. It also means that the class has undefined versioning and
cannot be be upgraded -- this patch fixes all such classes.

Change-Id: I57696f47b312517acd44799e10850f4887dab2e5
Signed-off-by: Robert Varga <rovarga@cisco.com>
---

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ClientActor.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ClientActor.java
index 2560f16588..59bec91511 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ClientActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ClientActor.java
@@ -29,6 +29,7 @@ public class ClientActor extends UntypedActor {
 
     public static Props props(final ActorRef target){
         return Props.create(new Creator<ClientActor>(){
+            private static final long serialVersionUID = 1L;
 
             @Override public ClientActor create() throws Exception {
                 return new ClientActor(target);
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
index cb375c2490..8e4a44cf20 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
@@ -52,6 +52,7 @@ public class ExampleActor extends RaftActor {
     public static Props props(final String id, final Map<String, String> peerAddresses,
         final Optional<ConfigParams> configParams){
         return Props.create(new Creator<ExampleActor>(){
+            private static final long serialVersionUID = 1L;
 
             @Override public ExampleActor create() throws Exception {
                 return new ExampleActor(id, peerAddresses, configParams);
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValue.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValue.java
index db3e683130..e0873cc7ba 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValue.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValue.java
@@ -18,6 +18,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class KeyValue extends Payload implements Serializable {
+    private static final long serialVersionUID = 1L;
     private String key;
     private String value;
 
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValueSaved.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValueSaved.java
index 9b2a2e9e3b..63c48ba703 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValueSaved.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/KeyValueSaved.java
@@ -11,4 +11,5 @@ package org.opendaylight.controller.cluster.example.messages;
 import java.io.Serializable;
 
 public class KeyValueSaved implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintRole.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintRole.java
index a5105f041a..c888d3f996 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintRole.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintRole.java
@@ -11,4 +11,5 @@ package org.opendaylight.controller.cluster.example.messages;
 import java.io.Serializable;
 
 public class PrintRole implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintState.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintState.java
index 20ed142d76..540f3768a6 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintState.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/messages/PrintState.java
@@ -11,4 +11,5 @@ package org.opendaylight.controller.cluster.example.messages;
 import java.io.Serializable;
 
 public class PrintState implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActor.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActor.java
index 617bb7e534..042b9fb569 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActor.java
@@ -739,9 +739,9 @@ public abstract class RaftActor extends AbstractUntypedPersistentActor {
     }
 
     static class DeleteEntries implements Serializable {
+        private static final long serialVersionUID = 1L;
         private final int fromIndex;
 
-
         public DeleteEntries(int fromIndex) {
             this.fromIndex = fromIndex;
         }
@@ -792,6 +792,7 @@ public abstract class RaftActor extends AbstractUntypedPersistentActor {
     }
 
     static class UpdateElectionTerm implements Serializable {
+        private static final long serialVersionUID = 1L;
         private final long currentTerm;
         private final String votedFor;
 
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/ReplicatedLogImplEntry.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/ReplicatedLogImplEntry.java
index fc2ec5cff9..ceb5633d4d 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/ReplicatedLogImplEntry.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/ReplicatedLogImplEntry.java
@@ -14,6 +14,7 @@ import java.io.Serializable;
 
 public class ReplicatedLogImplEntry implements ReplicatedLogEntry,
     Serializable {
+    private static final long serialVersionUID = 1L;
 
     private final long index;
     private final long term;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/Snapshot.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/Snapshot.java
index 8e0fcca9f7..77bf103701 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/Snapshot.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/Snapshot.java
@@ -12,6 +12,7 @@ import java.util.List;
 
 
 public class Snapshot implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final byte[] state;
     private final List<ReplicatedLogEntry> unAppliedEntries;
     private final long lastIndex;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyLogEntries.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyLogEntries.java
index af3c4fd87d..c395915a0f 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyLogEntries.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyLogEntries.java
@@ -20,6 +20,7 @@ import java.io.Serializable;
  *
  */
 public class ApplyLogEntries implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final int toIndex;
 
     public ApplyLogEntries(int toIndex) {
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplySnapshot.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplySnapshot.java
index c356804223..54ee02a057 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplySnapshot.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplySnapshot.java
@@ -16,6 +16,7 @@ import java.io.Serializable;
  * Internal message, issued by follower to its actor
  */
 public class ApplySnapshot implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final Snapshot snapshot;
 
     public ApplySnapshot(Snapshot snapshot) {
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyState.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyState.java
index b904335be3..0a7a632880 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyState.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ApplyState.java
@@ -14,6 +14,7 @@ import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
 import java.io.Serializable;
 
 public class ApplyState implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final ActorRef clientActor;
     private final String identifier;
     private final ReplicatedLogEntry replicatedLogEntry;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/CommitEntry.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/CommitEntry.java
index 07e376fca3..6335e3272e 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/CommitEntry.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/CommitEntry.java
@@ -14,4 +14,5 @@ import java.io.Serializable;
  * Message sent to commit an entry to the log
  */
 public class CommitEntry implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ElectionTimeout.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ElectionTimeout.java
index a844849f15..84fa8b7590 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ElectionTimeout.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/ElectionTimeout.java
@@ -11,4 +11,5 @@ package org.opendaylight.controller.cluster.raft.base.messages;
 import java.io.Serializable;
 
 public class ElectionTimeout implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/PersistEntry.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/PersistEntry.java
index 6a62817e90..68ecc1289b 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/PersistEntry.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/PersistEntry.java
@@ -14,4 +14,5 @@ import java.io.Serializable;
  * Message sent to Persist an entry into the transaction journal
  */
 public class PersistEntry implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/Replicate.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/Replicate.java
index 9bc737a0e3..611c6eaf1f 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/Replicate.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/Replicate.java
@@ -14,6 +14,7 @@ import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
 import java.io.Serializable;
 
 public class Replicate implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final ActorRef clientActor;
     private final String identifier;
     private final ReplicatedLogEntry replicatedLogEntry;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SaveSnapshot.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SaveSnapshot.java
index 861f5ee715..7b7f085856 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SaveSnapshot.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SaveSnapshot.java
@@ -15,4 +15,5 @@ import java.io.Serializable;
  * it and use it to save it's state
  */
 public class SaveSnapshot implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SendHeartBeat.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SendHeartBeat.java
index 3c8c845f5d..7eb7522b85 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SendHeartBeat.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/base/messages/SendHeartBeat.java
@@ -17,4 +17,5 @@ import java.io.Serializable;
  * Typically the Leader to itself on a schedule
  */
 public class SendHeartBeat implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeader.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeader.java
index 98dd0d4653..eebbde3393 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeader.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeader.java
@@ -11,5 +11,6 @@ package org.opendaylight.controller.cluster.raft.client.messages;
 import java.io.Serializable;
 
 public class FindLeader implements Serializable{
+    private static final long serialVersionUID = 1L;
 
 }
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeaderReply.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeaderReply.java
index 64c7350896..8b2e45aa06 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeaderReply.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/client/messages/FindLeaderReply.java
@@ -11,6 +11,7 @@ package org.opendaylight.controller.cluster.raft.client.messages;
 import java.io.Serializable;
 
 public class FindLeaderReply implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final String leaderActor;
 
     public FindLeaderReply(String leaderActor) {
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AbstractRaftRPC.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AbstractRaftRPC.java
index 33d8a68686..0122d45c30 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AbstractRaftRPC.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AbstractRaftRPC.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.raft.messages;
 
 public class AbstractRaftRPC implements RaftRPC {
+    private static final long serialVersionUID = 1L;
     // term
     protected long term;
 
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntries.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntries.java
index 14eb8a4b77..e5aebaa6be 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntries.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntries.java
@@ -24,10 +24,10 @@ import java.util.Map;
  * heartbeat (§5.2).
  */
 public class AppendEntries extends AbstractRaftRPC {
-
     public static final Class<AppendEntriesMessages.AppendEntries> SERIALIZABLE_CLASS = AppendEntriesMessages.AppendEntries.class;
 
     private static final org.slf4j.Logger LOG = org.slf4j.LoggerFactory.getLogger(AppendEntries.class);
+    private static final long serialVersionUID = 1L;
 
     // So that follower can redirect clients
     private final String leaderId;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntriesReply.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntriesReply.java
index b923baa716..a782eda565 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntriesReply.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/AppendEntriesReply.java
@@ -12,6 +12,7 @@ package org.opendaylight.controller.cluster.raft.messages;
  * Reply for the AppendEntriesRpc message
  */
 public class AppendEntriesReply extends AbstractRaftRPC {
+    private static final long serialVersionUID = 1L;
 
     // true if follower contained entry matching
     // prevLogIndex and prevLogTerm
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshot.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshot.java
index 5a0cc95c21..3c4e8117c7 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshot.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshot.java
@@ -14,6 +14,7 @@ import org.opendaylight.controller.protobuff.messages.cluster.raft.InstallSnapsh
 public class InstallSnapshot extends AbstractRaftRPC {
 
     public static final Class<InstallSnapshotMessages.InstallSnapshot> SERIALIZABLE_CLASS = InstallSnapshotMessages.InstallSnapshot.class;
+    private static final long serialVersionUID = 1L;
 
     private final String leaderId;
     private final long lastIncludedIndex;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshotReply.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshotReply.java
index d293a47c8e..71e7ecc189 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshotReply.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/InstallSnapshotReply.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.raft.messages;
 
 public class InstallSnapshotReply extends AbstractRaftRPC {
+    private static final long serialVersionUID = 1L;
 
     // The followerId - this will be used to figure out which follower is
     // responding
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVote.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVote.java
index 6ef2a06285..8321d0c25b 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVote.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVote.java
@@ -12,6 +12,7 @@ package org.opendaylight.controller.cluster.raft.messages;
  * Invoked by candidates to gather votes (§5.2).
  */
 public class RequestVote extends AbstractRaftRPC {
+    private static final long serialVersionUID = 1L;
 
     // candidate requesting vote
     private String candidateId;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
index df80b4e5e2..da3ba5c39f 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/messages/RequestVoteReply.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.raft.messages;
 
 public class RequestVoteReply extends AbstractRaftRPC {
+    private static final long serialVersionUID = 1L;
 
     // true means candidate received vot
     private final boolean voteGranted;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/MockRaftActorContext.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/MockRaftActorContext.java
index a1088aa7f2..562ca213a9 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/MockRaftActorContext.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/MockRaftActorContext.java
@@ -198,6 +198,7 @@ public class MockRaftActorContext implements RaftActorContext {
     }
 
     public static class MockPayload extends Payload implements Serializable {
+        private static final long serialVersionUID = 1L;
         private String value = "";
 
         public MockPayload(){
@@ -231,6 +232,7 @@ public class MockRaftActorContext implements RaftActorContext {
     }
 
     public static class MockReplicatedLogEntry implements ReplicatedLogEntry, Serializable {
+        private static final long serialVersionUID = 1L;
 
         private final long term;
         private final long index;
diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTest.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTest.java
index 8244604552..90827fcc81 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTest.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTest.java
@@ -85,6 +85,7 @@ public class RaftActorTest extends AbstractActorTest {
         private final RaftActor delegate;
 
         public static final class MockRaftActorCreator implements Creator<MockRaftActor> {
+            private static final long serialVersionUID = 1L;
             private final Map<String, String> peerAddresses;
             private final String id;
             private final Optional<ConfigParams> config;
diff --git a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailbox.java b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailbox.java
index 458f379f84..2a6735abd0 100644
--- a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailbox.java
+++ b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailbox.java
@@ -66,6 +66,7 @@ public class MeteredBoundedMailbox implements MailboxType, ProducesMessageQueue<
 
 
     public static class MeteredMessageQueue extends BoundedDequeBasedMailbox.MessageQueue {
+        private static final long serialVersionUID = 1L;
 
         public MeteredMessageQueue(int capacity, FiniteDuration pushTimeOut) {
             super(capacity, pushTimeOut);
diff --git a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/Monitor.java b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/Monitor.java
index 88ce791f02..f81b34aad8 100644
--- a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/Monitor.java
+++ b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/common/actor/Monitor.java
@@ -13,6 +13,7 @@ import akka.actor.ActorRef;
 import java.io.Serializable;
 
 public class Monitor implements Serializable {
+    private static final long serialVersionUID = 1L;
     private final ActorRef actorRef;
 
     public Monitor(ActorRef actorRef){
diff --git a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/raft/protobuff/client/messages/CompositeModificationPayload.java b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/raft/protobuff/client/messages/CompositeModificationPayload.java
index 8822ac83a6..aadc3625cc 100644
--- a/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/raft/protobuff/client/messages/CompositeModificationPayload.java
+++ b/opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/raft/protobuff/client/messages/CompositeModificationPayload.java
@@ -21,6 +21,7 @@ import java.util.Map;
 
 public class CompositeModificationPayload extends Payload implements
     Serializable {
+    private static final long serialVersionUID = 1L;
 
     private final PersistentMessages.CompositeModification modification;
 
diff --git a/opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailboxTest.java b/opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailboxTest.java
index d33e79f533..60efb9d7ca 100644
--- a/opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailboxTest.java
+++ b/opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/common/actor/MeteredBoundedMailboxTest.java
@@ -81,6 +81,7 @@ public class MeteredBoundedMailboxTest {
 
         public static Props props(final ReentrantLock lock){
             return Props.create(new Creator<PingPongActor>(){
+                private static final long serialVersionUID = 1L;
                 @Override
                 public PingPongActor create() throws Exception {
                     return new PingPongActor(lock);
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistration.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistration.java
index 342611298c..a8d7d22105 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistration.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataChangeListenerRegistration.java
@@ -53,6 +53,7 @@ public class DataChangeListenerRegistration extends AbstractUntypedActor {
 
     private static class DataChangeListenerRegistrationCreator
                                             implements Creator<DataChangeListenerRegistration> {
+        private static final long serialVersionUID = 1L;
         final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
                                                            NormalizedNode<?, ?>>> registration;
 
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardManager.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardManager.java
index c7213e6012..88f818f0fa 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardManager.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardManager.java
@@ -556,6 +556,7 @@ public class ShardManager extends AbstractUntypedPersistentActorWithMetering {
     }
 
     static class SchemaContextModules implements Serializable {
+        private static final long serialVersionUID = 1L;
         private final Set<String> modules;
 
         SchemaContextModules(Set<String> modules){
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/NotInitializedException.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/NotInitializedException.java
index 302d684322..839cce63e5 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/NotInitializedException.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/NotInitializedException.java
@@ -8,6 +8,7 @@
 package org.opendaylight.controller.cluster.datastore.exceptions;
 
 public class NotInitializedException extends RuntimeException {
+    private static final long serialVersionUID = 1L;
     public NotInitializedException(String message) {
         super(message);
     }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/PrimaryNotFoundException.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/PrimaryNotFoundException.java
index 7b07053fd9..c98e2bd384 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/PrimaryNotFoundException.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/PrimaryNotFoundException.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.datastore.exceptions;
 
 public class PrimaryNotFoundException extends RuntimeException {
+    private static final long serialVersionUID = 1L;
     public PrimaryNotFoundException(String message){
         super(message);
     }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/TimeoutException.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/TimeoutException.java
index 472cd38734..5590877aa7 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/TimeoutException.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/TimeoutException.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.datastore.exceptions;
 
 public class TimeoutException extends RuntimeException {
+    private static final long serialVersionUID = 1L;
     public TimeoutException(String message, Exception e){
         super(message, e);
     }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/UnknownMessageException.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/UnknownMessageException.java
index f4f2524a8d..bd804b8dde 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/UnknownMessageException.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/exceptions/UnknownMessageException.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.datastore.exceptions;
 
 public class UnknownMessageException extends Exception {
+    private static final long serialVersionUID = 1L;
     private final Object message;
 
     public UnknownMessageException(Object message) {
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorInitialized.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorInitialized.java
index b034f87d1c..71d5a48291 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorInitialized.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorInitialized.java
@@ -10,4 +10,5 @@ package org.opendaylight.controller.cluster.datastore.messages;
 import java.io.Serializable;
 
 public class ActorInitialized implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorNotInitialized.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorNotInitialized.java
index de25ef9ecc..576010f916 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorNotInitialized.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/ActorNotInitialized.java
@@ -10,4 +10,5 @@ package org.opendaylight.controller.cluster.datastore.messages;
 import java.io.Serializable;
 
 public class ActorNotInitialized implements Serializable {
+    private static final long serialVersionUID = 1L;
 }
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java
index f6eb6d7fbe..e70d79c61a 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java
@@ -387,6 +387,7 @@ public class ShardManagerTest extends AbstractActorTest {
             throws Exception {
         final CountDownLatch persistLatch = new CountDownLatch(1);
         final Creator<ShardManager> creator = new Creator<ShardManager>() {
+            private static final long serialVersionUID = 1L;
             @Override
             public ShardManager create() throws Exception {
                 return new ShardManager(shardMrgIDSuffix, new MockClusterWrapper(), new MockConfiguration(), DatastoreContext.newBuilder().build()) {
@@ -466,6 +467,7 @@ public class ShardManagerTest extends AbstractActorTest {
     }
 
     private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
+        private static final long serialVersionUID = 1L;
         private Creator<ShardManager> delegate;
 
         public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
diff --git a/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/XSQLColumn.java b/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/XSQLColumn.java
index dd8b8788af..c1404d58e6 100644
--- a/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/XSQLColumn.java
+++ b/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/XSQLColumn.java
@@ -3,6 +3,8 @@ package org.opendaylight.controller.md.sal.dom.xsql;
 import java.io.Serializable;
 
 public class XSQLColumn implements Serializable, Comparable<Object> {
+    private static final long serialVersionUID = 4854919735031714751L;
+
     private String name = null;
     private String tableName = null;
     private int charWidth = -1;
diff --git a/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/jdbc/JDBCCommand.java b/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/jdbc/JDBCCommand.java
index 019711157c..ba0626fdfe 100644
--- a/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/jdbc/JDBCCommand.java
+++ b/opendaylight/md-sal/sal-dom-xsql/src/main/java/org/opendaylight/controller/md/sal/dom/xsql/jdbc/JDBCCommand.java
@@ -6,6 +6,8 @@ import java.util.Map;
 import org.opendaylight.controller.md.sal.dom.xsql.XSQLBluePrint;
 
 public class JDBCCommand implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     public int type = 0;
     public static final int TYPE_EXECUTE_QUERY = 1;
     public static final int TYPE_QUERY_REPLY = 2;
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RpcManager.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RpcManager.java
index 4ae9c2e4d0..a840712999 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RpcManager.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RpcManager.java
@@ -65,6 +65,7 @@ public class RpcManager extends AbstractUntypedActor {
                             final Broker.ProviderSession brokerSession,
                             final RpcProvisionRegistry rpcProvisionRegistry) {
     return Props.create(new Creator<RpcManager>() {
+      private static final long serialVersionUID = 1L;
       @Override
       public RpcManager create() throws Exception {
         return new RpcManager(schemaContext, brokerSession, rpcProvisionRegistry);
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/ExecuteRpc.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/ExecuteRpc.java
index 522dd44f5b..4bb5258b40 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/ExecuteRpc.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/ExecuteRpc.java
@@ -14,6 +14,7 @@ import org.opendaylight.yangtools.yang.common.QName;
 import java.io.Serializable;
 
 public class ExecuteRpc implements Serializable {
+  private static final long serialVersionUID = 1L;
 
   private final String inputCompositeNode;
   private final QName rpc;
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/InvokeRpc.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/InvokeRpc.java
index 59d09fc41b..652569b7ba 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/InvokeRpc.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/InvokeRpc.java
@@ -15,6 +15,7 @@ import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import java.io.Serializable;
 
 public class InvokeRpc implements Serializable {
+  private static final long serialVersionUID = 1L;
 
   private final QName rpc;
   private final YangInstanceIdentifier identifier;
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/RpcResponse.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/RpcResponse.java
index 17766f15b9..387cb90112 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/RpcResponse.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/messages/RpcResponse.java
@@ -7,11 +7,10 @@
  */
 package org.opendaylight.controller.remote.rpc.messages;
 
-
-
 import java.io.Serializable;
 
 public class RpcResponse implements Serializable {
+  private static final long serialVersionUID = 1L;
   private final String resultCompositeNode;
 
   public RpcResponse(final String resultCompositeNode) {
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/RoutingTable.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/RoutingTable.java
index d21d05d7fe..fe8c463d2e 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/RoutingTable.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/RoutingTable.java
@@ -18,6 +18,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class RoutingTable implements Copier<RoutingTable>, Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Map<RpcRouter.RouteIdentifier<?, ?, ?>, Long> table = new HashMap<>();
     private ActorRef router;
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/BucketImpl.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/BucketImpl.java
index 4dac456dc4..01c77f1f08 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/BucketImpl.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/BucketImpl.java
@@ -10,6 +10,7 @@ package org.opendaylight.controller.remote.rpc.registry.gossip;
 import java.io.Serializable;
 
 public class BucketImpl<T extends Copier<T>> implements Bucket<T>, Serializable {
+    private static final long serialVersionUID = 1L;
 
     private Long version = System.currentTimeMillis();
 
diff --git a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/Messages.java b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/Messages.java
index bf8b20213b..4e8f2c61c9 100644
--- a/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/Messages.java
+++ b/opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/registry/gossip/Messages.java
@@ -29,9 +29,12 @@ public class Messages {
 
     public static class BucketStoreMessages{
 
-        public static class GetLocalBucket implements Serializable{}
+        public static class GetLocalBucket implements Serializable {
+            private static final long serialVersionUID = 1L;
+        }
 
         public static class ContainsBucket implements Serializable {
+            private static final long serialVersionUID = 1L;
             final private Bucket bucket;
 
             public ContainsBucket(Bucket bucket){
@@ -46,20 +49,25 @@ public class Messages {
         }
 
         public static class UpdateBucket extends ContainsBucket implements Serializable {
+            private static final long serialVersionUID = 1L;
             public UpdateBucket(Bucket bucket){
                 super(bucket);
             }
         }
 
         public static class GetLocalBucketReply extends ContainsBucket implements Serializable {
+            private static final long serialVersionUID = 1L;
             public GetLocalBucketReply(Bucket bucket){
                 super(bucket);
             }
         }
 
-        public static class GetAllBuckets implements Serializable{}
+        public static class GetAllBuckets implements Serializable {
+            private static final long serialVersionUID = 1L;
+        }
 
         public static class GetBucketsByMembers implements Serializable{
+            private static final long serialVersionUID = 1L;
             private Set<Address> members;
 
             public GetBucketsByMembers(Set<Address> members){
@@ -73,6 +81,7 @@ public class Messages {
         }
 
         public static class ContainsBuckets implements Serializable{
+            private static final long serialVersionUID = 1L;
             private Map<Address, Bucket> buckets;
 
             public ContainsBuckets(Map<Address, Bucket> buckets){
@@ -94,20 +103,25 @@ public class Messages {
         }
 
         public static class GetAllBucketsReply extends ContainsBuckets implements Serializable{
+            private static final long serialVersionUID = 1L;
             public GetAllBucketsReply(Map<Address, Bucket> buckets) {
                 super(buckets);
             }
         }
 
         public static class GetBucketsByMembersReply extends ContainsBuckets implements Serializable{
+            private static final long serialVersionUID = 1L;
             public GetBucketsByMembersReply(Map<Address, Bucket> buckets) {
                 super(buckets);
             }
         }
 
-        public static class GetBucketVersions implements Serializable{}
+        public static class GetBucketVersions implements Serializable {
+            private static final long serialVersionUID = 1L;
+        }
 
         public static class ContainsBucketVersions implements Serializable{
+            private static final long serialVersionUID = 1L;
             Map<Address, Long> versions;
 
             public ContainsBucketVersions(Map<Address, Long> versions) {
@@ -123,12 +137,14 @@ public class Messages {
         }
 
         public static class GetBucketVersionsReply extends ContainsBucketVersions implements Serializable{
+            private static final long serialVersionUID = 1L;
             public GetBucketVersionsReply(Map<Address, Long> versions) {
                 super(versions);
             }
         }
 
         public static class UpdateRemoteBuckets extends ContainsBuckets implements Serializable{
+            private static final long serialVersionUID = 1L;
             public UpdateRemoteBuckets(Map<Address, Bucket> buckets) {
                 super(buckets);
             }
@@ -136,11 +152,16 @@ public class Messages {
     }
 
     public static class GossiperMessages{
-        public static class Tick implements Serializable {}
+        public static class Tick implements Serializable {
+            private static final long serialVersionUID = 1L;
+        }
 
-        public static final class GossipTick extends Tick {}
+        public static final class GossipTick extends Tick {
+            private static final long serialVersionUID = 1L;
+        }
 
         public static final class GossipStatus extends ContainsBucketVersions implements Serializable{
+            private static final long serialVersionUID = 1L;
             private Address from;
 
             public GossipStatus(Address from, Map<Address, Long> versions) {
@@ -154,6 +175,7 @@ public class Messages {
         }
 
         public static final class GossipEnvelope extends ContainsBuckets implements Serializable {
+            private static final long serialVersionUID = 1L;
             private final Address from;
             private final Address to;