[ONOS-3116] PortPairGroupId

Change-Id: I213b6638bacfe716b87393a447b0f4634f6a4c5b
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortChainCodec.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortChainCodec.java
index 77706b5..8c43058 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortChainCodec.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortChainCodec.java
@@ -76,7 +76,7 @@
         ArrayNode arrayNode = (ArrayNode) json.path(PORT_PAIR_GROUPS);
         if (arrayNode != null) {
             List<PortPairGroupId> list = Lists.newArrayList();
-            arrayNode.forEach(i -> list.add(PortPairGroupId.portPairGroupId(i.asText())));
+            arrayNode.forEach(i -> list.add(PortPairGroupId.of(i.asText())));
             resultBuilder.setPortPairGroups(list);
         }
 
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortPairGroupCodec.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortPairGroupCodec.java
index af827a8..b5ae266 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortPairGroupCodec.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/PortPairGroupCodec.java
@@ -59,7 +59,7 @@
 
         String id = nullIsIllegal(json.get(ID),
                                   ID + MISSING_MEMBER_MESSAGE).asText();
-        resultBuilder.setId(PortPairGroupId.portPairGroupId(id));
+        resultBuilder.setId(PortPairGroupId.of(id));
 
         String tenantId = nullIsIllegal(json.get(TENANT_ID),
                                         TENANT_ID + MISSING_MEMBER_MESSAGE).asText();