Coding gudilines for class and methods javadocs fixed.

Change-Id: I0153e6391c9ec9eacaac65c3989834b6bf5c65bf
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
index 89afb78..af81d6f 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
@@ -22,6 +22,7 @@
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 
 /**
+ * Represent the parse tree error listener.
  * By default, ANTLR sends all errors to standard error, this is changed by
  * providing this new implementation of interface ANTLRErrorListener. The
  * interface has a syntaxError() method that applies to both lexer and parser.