diff --git a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkTopologyManagerTest.java b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkTopologyManagerTest.java
index 4e5a81c..11bfdc8 100644
--- a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkTopologyManagerTest.java
+++ b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkTopologyManagerTest.java
@@ -42,6 +42,7 @@
 import org.onosproject.net.TestDeviceParams;
 import org.onosproject.net.intent.FakeIntentManager;
 import org.onosproject.net.intent.TestableIntentService;
+import org.onosproject.net.topology.LinkWeigher;
 import org.onosproject.net.topology.LinkWeight;
 import org.onosproject.net.topology.Topology;
 import org.onosproject.net.topology.TopologyCluster;
@@ -391,7 +392,8 @@
         VirtualDevice dstVirtualDevice = getVirtualDevice(virtualNetwork.id(), DID2);
 
         // test the getPaths() method using a null weight.
-        Set<Path> paths = topologyService.getPaths(topology, srcVirtualDevice.id(), dstVirtualDevice.id(), null);
+        Set<Path> paths = topologyService.getPaths(topology, srcVirtualDevice.id(),
+                dstVirtualDevice.id(), (LinkWeigher) null);
     }
 
     /**