Fix javadoc issues

Change-Id: I68b5e8feba625104f9a5c9eb62a56654ddea0516
diff --git a/core/api/src/main/java/org/onosproject/net/flow/CompletedBatchOperation.java b/core/api/src/main/java/org/onosproject/net/flow/CompletedBatchOperation.java
index b9c1387..d78d486 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/CompletedBatchOperation.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/CompletedBatchOperation.java
@@ -16,13 +16,13 @@
 package org.onosproject.net.flow;
 
 
-import java.util.Collections;
-import java.util.Set;
-
 import com.google.common.base.MoreObjects;
 import com.google.common.collect.ImmutableSet;
 import org.onosproject.net.DeviceId;
 
+import java.util.Collections;
+import java.util.Set;
+
 /**
  * Representation of a completed flow rule batch operation.
  */
@@ -54,7 +54,7 @@
      *
      * @param success  indicates whether the completion is successful.
      * @param failures set of any failures encountered
-     * @param deviceId device id
+     * @param deviceId the device this operation completed for
      */
     public CompletedBatchOperation(boolean success, Set<? extends FlowRule> failures,
                                    DeviceId deviceId) {