diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/ClassMustHaveAuthorRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/ClassMustHaveAuthorRule.java
index b4f407a..b0c29f5 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/ClassMustHaveAuthorRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/ClassMustHaveAuthorRule.java
@@ -48,9 +48,9 @@ public class ClassMustHaveAuthorRule extends AbstractAliCommentRule {
      * Immediately return after visiting class/interface/enum/annotation,
      * so that we don't need to deal with inner class/interface/enum/annotation declarations.
      *
-     * @param decl
-     * @param data
-     * @return
+     * @param decl node
+     * @param data ruleContext
+     * @return result
      */
     @Override
     public Object visit(ASTClassOrInterfaceDeclaration decl, Object data) {
diff --git a/p3c-pmd/src/main/resources/messages_en.xml b/p3c-pmd/src/main/resources/messages_en.xml
index 9491ff0..f9c38b3 100644
--- a/p3c-pmd/src/main/resources/messages_en.xml
+++ b/p3c-pmd/src/main/resources/messages_en.xml
@@ -72,7 +72,7 @@
         <![CDATA[iBatis built in queryForList(String statementName, int start, int size) is not recommended]]>
     </entry>
     <entry key="java.naming.ClassNamingShouldBeCamelRule.rule.msg">
-        <![CDATA[Class names should be nouns in UpperCamelCase except domain models: DO, BO, DTO, VO, etc]]>
+        <![CDATA[Class names should be nouns in UpperCamelCase except domain models: DO, BO, DTO, VO, DAO, etc]]>
     </entry>
     <entry key="java.naming.AbstractClassShouldStartWithAbstractNamingRule.rule.msg">
         <![CDATA[Abstract class names must start with Abstract or Base]]>