diff --git a/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java b/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
index 44e4b66..94ab611 100644
--- a/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
+++ b/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
@@ -45,6 +45,7 @@
     /**
      * Returns a collection of all edge point for the specified device.
      *
+     * @param deviceId device identifier
      * @return iterable collection of all edge points for the device
      */
     Iterable<ConnectPoint> getEdgePoint(DeviceId deviceId);
diff --git a/core/api/src/main/java/org/onosproject/net/flowobjective/ObjectiveContext.java b/core/api/src/main/java/org/onosproject/net/flowobjective/ObjectiveContext.java
index c6db17f..f3d23e4 100644
--- a/core/api/src/main/java/org/onosproject/net/flowobjective/ObjectiveContext.java
+++ b/core/api/src/main/java/org/onosproject/net/flowobjective/ObjectiveContext.java
@@ -39,6 +39,7 @@
      * Invoked when error is encountered while executing the flow objective.
      *
      * @param objective objective to execute
+     * @param error error encountered
      */
     default void onError(Objective objective, ObjectiveError error) {
     }
diff --git a/core/api/src/main/java/org/onosproject/store/service/Versioned.java b/core/api/src/main/java/org/onosproject/store/service/Versioned.java
index fb6a78b..f0e70bd 100644
--- a/core/api/src/main/java/org/onosproject/store/service/Versioned.java
+++ b/core/api/src/main/java/org/onosproject/store/service/Versioned.java
@@ -91,6 +91,7 @@
      * Maps this instance into another after transforming its
      * value while retaining the same version and creationTime.
      * @param transformer function to mapping the value
+     * @param <U> value type of the returned instance
      * @return mapped instance
      */
     public <U> Versioned<U> map(Function<V, U> transformer) {