Avoid unnecessary unboxing

Change-Id: Ib535352c1b9be6073c0dfc4df6ee8d99577caeea
diff --git a/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbTunnelConfig.java b/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbTunnelConfig.java
index 7f04c75..1c99c16 100644
--- a/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbTunnelConfig.java
+++ b/drivers/src/main/java/org/onosproject/driver/ovsdb/OvsdbTunnelConfig.java
@@ -114,7 +114,7 @@
         String ip = deviceId.toString().substring(fistColon + 1, lastColon);
         String port = deviceId.toString().substring(lastColon + 1);
         IpAddress ipAddress = IpAddress.valueOf(ip);
-        long portL = Long.valueOf(port).longValue();
+        long portL = Long.parseLong(port);
         return new OvsdbNodeId(ipAddress, portL);
     }