Javadoc fixes.

Change-Id: Ic2cef19a6f1af9916c8615c9319cc122d9da5383
diff --git a/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java b/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java
index f34b65d..3f87b7e 100644
--- a/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java
+++ b/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java
@@ -90,6 +90,7 @@
      * @param treatment    action
      * @param links        traversed links
      * @param egressPoints Set of egress point
+     * @param constraints  the constraints
      * @throws NullPointerException {@code path} is null
      */
     public LinkCollectionIntent(ApplicationId appId,
diff --git a/core/api/src/main/java/org/onlab/onos/net/resource/LinkResourceStore.java b/core/api/src/main/java/org/onlab/onos/net/resource/LinkResourceStore.java
index 85ee89c..79f7a3e 100644
--- a/core/api/src/main/java/org/onlab/onos/net/resource/LinkResourceStore.java
+++ b/core/api/src/main/java/org/onlab/onos/net/resource/LinkResourceStore.java
@@ -43,6 +43,7 @@
      * Releases resources.
      *
      * @param allocations resources to be released
+     * @return the link resource event
      */
     LinkResourceEvent releaseResources(LinkResourceAllocations allocations);