Refactor with adding unit test for OpenstackNetworkingUtil

Change-Id: Ie116b9215fb53ecc6a06d75da6d29ef2f2cb1d6a
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/cli/OpenstackNetworkListCommand.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/cli/OpenstackNetworkListCommand.java
index 401dddc..9867f9c 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/cli/OpenstackNetworkListCommand.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/cli/OpenstackNetworkListCommand.java
@@ -31,7 +31,7 @@
 import java.util.stream.Collectors;
 
 import static com.fasterxml.jackson.databind.SerializationFeature.INDENT_OUTPUT;
-import static org.onosproject.openstacknetworking.util.OpenstackUtil.modelEntityToJson;
+import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.modelEntityToJson;
 
 /**
  * Lists OpenStack networks.