Coding gudilines for class and methods javadocs fixed.

Change-Id: I0153e6391c9ec9eacaac65c3989834b6bf5c65bf
diff --git a/src/main/java/org/onosproject/yangutils/parser/exceptions/ParserException.java b/src/main/java/org/onosproject/yangutils/parser/exceptions/ParserException.java
index b21e912..6a18b54 100644
--- a/src/main/java/org/onosproject/yangutils/parser/exceptions/ParserException.java
+++ b/src/main/java/org/onosproject/yangutils/parser/exceptions/ParserException.java
@@ -17,7 +17,7 @@
 package org.onosproject.yangutils.parser.exceptions;
 
 /**
- * Base class for exceptions in parser operations.
+ * Represents base class for exceptions in parser operations.
  */
 public class ParserException extends RuntimeException {
 
@@ -27,7 +27,7 @@
     private String fileName;
 
     /**
-     * Create a new parser exception.
+     * Creates a new parser exception.
      */
     public ParserException() {
         super();