Code refractoring and Formatting

components/identity-extensions/backend-oauth-authenticator/src/main/java/org/wso2/carbon/identity/authenticator/backend/oauth/AuthenticatorException.java

@@ -36,6 +36,4 @@ public class AuthenticatorException extends Exception {
     public AuthenticatorException(String message, Throwable e) {
         super(message, e);
     }
-
-
 }

components/identity-extensions/backend-oauth-authenticator/src/main/java/org/wso2/carbon/identity/authenticator/backend/oauth/validator/OAuthValidatorFactory.java

@@ -35,6 +35,7 @@ public class OAuthValidatorFactory {
 
     /**
      * The method check the configuration and provide the appropriate implementation for OAuth2TokenValidator
+     *
      * @return OAuth2TokenValidator
      */
     public static OAuth2TokenValidator getValidator() throws IllegalArgumentException {