Fix for SDN-IP installing wrong point-to-point intents.

Fixes ONOS-2514.

Ported from onos-1.2 branch.

Change-Id: I0d3d6012daa8dd2a45707a58cf6e745314f6dc24
(cherry picked from commit 0c763e9b064eac86d866b8fdfea25baec104324e)
diff --git a/apps/routing/src/test/java/org/onosproject/routing/config/impl/HostToInterfaceAdaptorTest.java b/apps/routing/src/test/java/org/onosproject/routing/config/impl/HostToInterfaceAdaptorTest.java
index 5112427..0347fc5 100644
--- a/apps/routing/src/test/java/org/onosproject/routing/config/impl/HostToInterfaceAdaptorTest.java
+++ b/apps/routing/src/test/java/org/onosproject/routing/config/impl/HostToInterfaceAdaptorTest.java
@@ -173,7 +173,8 @@
      */
     @Test(expected = NullPointerException.class)
     public void testGetInterfaceNull() {
-        adaptor.getInterface(null);
+        ConnectPoint c = null;
+        adaptor.getInterface(c);
     }
 
     /**