Added comments as suggested in #167

Author: sapessi

aws-serverless-spring-archetype/src/main/resources/archetype-resources/src/main/java/SpringApiConfig.java

@@ -44,6 +44,8 @@ public HandlerAdapter handlerAdapter() {
      *
      * By default, an ExceptionHandlerExceptionResolver is created which creates many dependent object, including
      * an expensive ObjectMapper instance.
+     * 
+     * To enable custom @ControllerAdvice classes remove this bean.
      */
     @Bean
     public HandlerExceptionResolver handlerExceptionResolver() {

aws-serverless-springboot-archetype/src/main/resources/archetype-resources/src/main/java/Application.java

@@ -52,6 +52,8 @@ public HandlerAdapter handlerAdapter() {
      *
      * By default, an ExceptionHandlerExceptionResolver is created which creates many dependent object, including
      * an expensive ObjectMapper instance.
+     *
+     * To enable custom @ControllerAdvice classes remove this bean.
      */
     @Bean
     public HandlerExceptionResolver handlerExceptionResolver() {

samples/spring/pet-store/src/main/java/com/amazonaws/serverless/sample/spring/PetStoreSpringAppConfig.java

@@ -51,6 +51,8 @@ public HandlerAdapter handlerAdapter() {
      *
      * By default, an ExceptionHandlerExceptionResolver is created which creates many dependent object, including
      * an expensive ObjectMapper instance.
+     *
+     * To enable custom @ControllerAdvice classes remove this bean.
      */
     @Bean
     public HandlerExceptionResolver handlerExceptionResolver() {

samples/springboot/pet-store/src/main/java/com/amazonaws/serverless/sample/springboot/Application.java

@@ -49,6 +49,8 @@ public HandlerAdapter handlerAdapter() {
      *
      * By default, an ExceptionHandlerExceptionResolver is created which creates many dependent object, including
      * an expensive ObjectMapper instance.
+     *
+     * To enable custom @ControllerAdvice classes remove this bean.
      */
     @Bean
     public HandlerExceptionResolver handlerExceptionResolver() {