ST defect fixes and review comments fixes

Change-Id: Ib8c56a88c19cd9aa23918d0f9e37c89e74cb0d13
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/utils/io/impl/YangFileScannerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/utils/io/impl/YangFileScannerTest.java
index 6441b19..cb2ad75 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/utils/io/impl/YangFileScannerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/utils/io/impl/YangFileScannerTest.java
@@ -84,8 +84,8 @@
     /**
      * Method used for creating multiple directories inside the target file.
      *
-     * @param path where directories should be created.
-     * @return
+     * @param path where directories should be created
+     * @return the directory path that is created
      */
     public File createDirectory(String path) {