Resource ID Null exception fix

Change-Id: Ic6dd3c9202b7f9623d5503ce622abce30237ebb3
diff --git a/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java b/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
index bb909bd..6dee677 100644
--- a/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
+++ b/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
@@ -232,7 +232,7 @@
     }
 
     public static String[] getService(ResourceId path) {
-        String[] res = null;
+        String[] res = new String[2];
         if (path == null) {
             return res;
         }