ONOS-885: Group store interface definition and in-memory store implementation

Change-Id: I1125fbc23f1e58bcb8aaf5f67c02da610fa7ef25

ONOS-885: Group store interface definition and in-memory store implementation

Change-Id: Id3794bed63785e10ed86c0b5d90bf875d127224c
diff --git a/core/api/src/main/java/org/onosproject/net/group/GroupKey.java b/core/api/src/main/java/org/onosproject/net/group/GroupKey.java
index 17cb560..da8d449 100644
--- a/core/api/src/main/java/org/onosproject/net/group/GroupKey.java
+++ b/core/api/src/main/java/org/onosproject/net/group/GroupKey.java
@@ -15,8 +15,9 @@
  */
 package org.onosproject.net.group;
 
-/* Representation of generalized Key that would be used to store
- * groups in <Key, Value> store. Implementation of this interface
+/**
+ * Representation of generalized Key that would be used to store
+ * groups in &lt; Key, Value &gt; store. Implementation of this interface
  * MUST override "equals()" and "hashcode()" methods.
  */
 public interface GroupKey  {