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Why is DefaultAnnotationHandlerMapping deprecated?

In Spring MVC, the DefaultAnnotationHandlerMapping class has been deprecated. Documentation ( http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/servlet/mvc/annotation/DefaultAnnotationHandlerMapping.html ):

Obsolete. in Spring 3.2 in favor of RequestMappingHandlerMapping

Why is it deprecated? What practical problems with this class have been captured in RequestMappingHandlerMapping?

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Spring Framework is an open source project hosted on GitHub, so all this information is easy to find in the code:

  • Find the source file: click
  • Switch to "blame": click
  • Find All Occurrences of " @Deprecated

    " To Find Associated Commit: Click
  • The error message mentions "SPR-10005", find it on Spring JIRA: click
  • The JIRA ticket contains a link to the document "What's new in version 3.1.3": click


Relevant part:

The new classes have been developed in response to many requests to make the annotation controller support classes more customizable and extensible. Whereas previously you could configure a custom annotated controller's custom method argument argument, with the new support classes, you can customize the processing for any supported method argument or return type.

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