diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/RouterWebResource.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/RouterWebResource.java
index d7389b7..f8b87cc 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/RouterWebResource.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/RouterWebResource.java
@@ -15,37 +15,11 @@
  */
 package org.onosproject.vtnweb.resources;
 
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkNotNull;
-import static javax.ws.rs.core.Response.Status.BAD_REQUEST;
-import static javax.ws.rs.core.Response.Status.CONFLICT;
-import static javax.ws.rs.core.Response.Status.CREATED;
-import static javax.ws.rs.core.Response.Status.NOT_FOUND;
-import static javax.ws.rs.core.Response.Status.NO_CONTENT;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentMap;
-
-import javax.ws.rs.Consumes;
-import javax.ws.rs.DELETE;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.PUT;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
 import org.onlab.packet.IpAddress;
 import org.onlab.util.ItemNotFoundException;
 import org.onosproject.rest.AbstractWebResource;
@@ -66,11 +40,34 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import com.google.common.collect.Maps;
-import com.google.common.collect.Sets;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentMap;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static javax.ws.rs.core.Response.Status.BAD_REQUEST;
+import static javax.ws.rs.core.Response.Status.CONFLICT;
+import static javax.ws.rs.core.Response.Status.CREATED;
+import static javax.ws.rs.core.Response.Status.NOT_FOUND;
 
 @Path("routers")
 public class RouterWebResource extends AbstractWebResource {
@@ -168,7 +165,7 @@
             RouterId routerId = RouterId.valueOf(id);
             Set<RouterId> routerIds = Sets.newHashSet(routerId);
             get(RouterService.class).removeRouters(routerIds);
-            return Response.status(NO_CONTENT).entity(DELETE_SUCCESS).build();
+            return Response.noContent().entity(DELETE_SUCCESS).build();
         } catch (Exception e) {
             return Response.status(BAD_REQUEST).entity(e.getMessage()).build();
         }