Replace deprecated method usage.

Change-Id: I119450c40926fc1b60d5f201e3f904ebb4b97a9c
diff --git a/core/net/src/main/java/org/onosproject/net/host/impl/HostMonitor.java b/core/net/src/main/java/org/onosproject/net/host/impl/HostMonitor.java
index 1d7c37c..0d2d373 100644
--- a/core/net/src/main/java/org/onosproject/net/host/impl/HostMonitor.java
+++ b/core/net/src/main/java/org/onosproject/net/host/impl/HostMonitor.java
@@ -190,7 +190,7 @@
             return;
         }
 
-        for (InterfaceIpAddress ia : intf.ipAddresses()) {
+        for (InterfaceIpAddress ia : intf.ipAddressesList()) {
             if (ia.subnetAddress().contains(targetIp)) {
                 sendProbe(intf.connectPoint(), targetIp, ia.ipAddress(),
                         intf.mac(), intf.vlan());