Fix javadoc

Change-Id: I19b57879ccf76c085363b6be53dd0f838f5673bd
diff --git a/core/api/src/main/java/org/onosproject/store/service/StorageService.java b/core/api/src/main/java/org/onosproject/store/service/StorageService.java
index ebc60d1..e646e38 100644
--- a/core/api/src/main/java/org/onosproject/store/service/StorageService.java
+++ b/core/api/src/main/java/org/onosproject/store/service/StorageService.java
@@ -114,7 +114,7 @@
     /**
      * Returns an instance of {@code Topic} with specified name.
      *
-     * @param <E> topic message type
+     * @param <T> topic message type
      * @param name topic name
      * @param serializer serializer
      *