Cluster scaling enchancements
	- Updated ConfigFileBasedClusterMetadataProvider to handle both file and http protocols.
	- Server open logic updated to handle joining an existing cluster.

Change-Id: Idbaa39733c7bf814510c94c4b21e3714b3f97f8f
diff --git a/cli/src/main/java/org/onosproject/cli/net/PartitionsListCommand.java b/cli/src/main/java/org/onosproject/cli/net/PartitionsListCommand.java
index 74375dd..dfcc1f3 100644
--- a/cli/src/main/java/org/onosproject/cli/net/PartitionsListCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/PartitionsListCommand.java
@@ -43,6 +43,9 @@
      * @param partitionInfo partition descriptions
      */
     private void displayPartitions(List<PartitionInfo> partitionInfo) {
+        if (partitionInfo.isEmpty()) {
+            return;
+        }
         print("----------------------------------------------------------");
         print(FMT, "Name", "Term", "Members", "");
         print("----------------------------------------------------------");