[CORD-2903] Improve SR/Multicast APIs

Change-Id: Id44af87569e0a83129c96504b21c69e1d455f785
(cherry picked from commit a2858a34a26e02e9d2dd66dc562d0f6fb2c4bdd1)
diff --git a/apps/segmentrouting/web/src/main/java/org/onosproject/segmentrouting/web/SegmentRoutingWebApplication.java b/apps/segmentrouting/web/src/main/java/org/onosproject/segmentrouting/web/SegmentRoutingWebApplication.java
index 4aa1a71..75646d1 100644
--- a/apps/segmentrouting/web/src/main/java/org/onosproject/segmentrouting/web/SegmentRoutingWebApplication.java
+++ b/apps/segmentrouting/web/src/main/java/org/onosproject/segmentrouting/web/SegmentRoutingWebApplication.java
@@ -26,6 +26,6 @@
 public class SegmentRoutingWebApplication extends AbstractWebApplication {
     @Override
     public Set<Class<?>> getClasses() {
-        return getClasses(PseudowireWebResource.class);
+        return getClasses(PseudowireWebResource.class, McastWebResource.class);
     }
 }