SONAR suggestion - generic exceptions

Replace uses of generic RuntimeException
with more appropriate unchecked exceptions

Change-Id: If283743c2cf7252b8d280bdb788708ebbe57da9d
diff --git a/core/store/dist/src/main/java/org/onosproject/store/cluster/messaging/impl/NettyMessagingManager.java b/core/store/dist/src/main/java/org/onosproject/store/cluster/messaging/impl/NettyMessagingManager.java
index a5c5f3b..d7e478b 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/cluster/messaging/impl/NettyMessagingManager.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/cluster/messaging/impl/NettyMessagingManager.java
@@ -158,7 +158,7 @@
     protected ClusterMetadataService clusterMetadataService;
 
     @Activate
-    public void activate() throws Exception {
+    public void activate() throws InterruptedException {
         ControllerNode localNode = clusterMetadataService.getLocalNode();
         getTlsParameters();
 
@@ -179,7 +179,7 @@
     }
 
     @Deactivate
-    public void deactivate() throws Exception {
+    public void deactivate() {
         if (started.get()) {
             serverGroup.shutdownGracefully();
             clientGroup.shutdownGracefully();