javadoc fixes

Change-Id: I3b4fc2d99f42b2413a535fb411b9c19bdd186ad8
diff --git a/core/api/src/main/java/org/onlab/onos/net/topology/TopologyService.java b/core/api/src/main/java/org/onlab/onos/net/topology/TopologyService.java
index 31a718b..5d8bbdf 100644
--- a/core/api/src/main/java/org/onlab/onos/net/topology/TopologyService.java
+++ b/core/api/src/main/java/org/onlab/onos/net/topology/TopologyService.java
@@ -103,6 +103,7 @@
      * @param topology topology descriptor
      * @param src      source device
      * @param dst      destination device
+     * @param weight   edge-weight entity
      * @return set of all shortest paths between the two devices
      */
     Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst,