diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java
index f0a31a9..b5b8252 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java
@@ -82,11 +82,11 @@
     @Produces(MediaType.APPLICATION_JSON)
     public Response getFlowClassifier(@PathParam("flow_id") String id) {
 
-        if (!service.hasFlowClassifier(FlowClassifierId.flowClassifierId(UUID.fromString(id)))) {
+        if (!service.hasFlowClassifier(FlowClassifierId.of(UUID.fromString(id)))) {
             return Response.status(NOT_FOUND).entity(FLOW_CLASSIFIER_NOT_FOUND).build();
         }
         FlowClassifier flowClassifier = nullIsNotFound(
-                service.getFlowClassifier(FlowClassifierId.flowClassifierId(UUID.fromString(id))),
+                service.getFlowClassifier(FlowClassifierId.of(UUID.fromString(id))),
                 FLOW_CLASSIFIER_NOT_FOUND);
 
         ObjectNode result = new ObjectMapper().createObjectNode();
@@ -182,7 +182,7 @@
     @DELETE
     public Response deleteFlowClassifier(@PathParam("flow_id") String id) throws IOException {
         try {
-            FlowClassifierId flowClassifierId = FlowClassifierId.flowClassifierId(UUID.fromString(id));
+            FlowClassifierId flowClassifierId = FlowClassifierId.of(UUID.fromString(id));
             service.removeFlowClassifier(flowClassifierId);
             return Response.status(201).entity("SUCCESS").build();
         } catch (Exception e) {
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/FlowClassifierCodec.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/FlowClassifierCodec.java
index 7460d2e..4c17633 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/FlowClassifierCodec.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/FlowClassifierCodec.java
@@ -62,7 +62,7 @@
 
         String flowClassifierId = nullIsIllegal(json.get(FLOW_CLASSIFIER_ID),
                 FLOW_CLASSIFIER_ID + MISSING_MEMBER_MESSAGE).asText();
-        resultBuilder.setFlowClassifierId(FlowClassifierId.flowClassifierId(UUID.fromString(flowClassifierId)));
+        resultBuilder.setFlowClassifierId(FlowClassifierId.of(UUID.fromString(flowClassifierId)));
 
         String tenantId = nullIsIllegal(json.get(TENANT_ID), TENANT_ID + MISSING_MEMBER_MESSAGE).asText();
         resultBuilder.setTenantId(TenantId.tenantId(tenantId));
@@ -131,4 +131,4 @@
                 .put("DST_PORT", flowClassifier.dstPort().toString());
         return result;
     }
-}
\ No newline at end of file
+}
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 28da5cd..77706b5 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
@@ -83,7 +83,7 @@
         arrayNode = (ArrayNode) json.path(FLOW_CLASSIFIERS);
         if (arrayNode != null) {
             List<FlowClassifierId> list = Lists.newArrayList();
-            arrayNode.forEach(i -> list.add(FlowClassifierId.flowClassifierId(UUID.fromString(i.asText()))));
+            arrayNode.forEach(i -> list.add(FlowClassifierId.of(UUID.fromString(i.asText()))));
             resultBuilder.setFlowClassifiers(list);
         }