Distributed group store using eventual consistent map abstraction

Change-Id: I618a0f6fa80e0e25285d7a2026032f09ba90aa70
diff --git a/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java b/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
index 385a5d6..3ffb2c2 100644
--- a/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
+++ b/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
@@ -41,7 +41,8 @@
      * @param deviceId device identifier
      * @param type type of the group
      * @param buckets immutable list of group bucket
-     * @param appCookie immutable application cookie to be associated with the group
+     * @param appCookie immutable application cookie of type DefaultGroupKey
+     * to be associated with the group
      * @param appId application id
      */
     public DefaultGroupDescription(DeviceId deviceId,