Length validation in example doesn't work

I created the simple example app based on the Getting Started guide, and I run into a problem. The Saying class has the @Length(max = 3) annotation on its content property (see here), The guide states

Lastly, the bean leverages validation to ensure the content size is no greater than 3.

This, to my understanding, should prevent any attempt to assign a string longer than 3 characters to the content property.

However, this does not seem to work. For example, when running curl localhost:8080/hello-world, the content will be "Hello, Stranger!" which is clearly longer than 3 characters.

Please let me know if I’m misunderstanding something.

[skradel]

I’m inclined to agree with you that the example given in the Getting Started guide is somewhat nonsensical; type “Saying” is only used as a return value type from a resource method, whereas most validation situations are more concerned with validating user input, e.g. validating a POSTed bean or validating URL query parameters.

That said, adding the annotation to the resource method as “public @Valid Saying sayHello” could be used to show a more unusual usage to generate HTTP 5xx errors, where the server found the user’s request acceptable but was unable to generate a valid response.

[acsbendi]

Fixed in #3082.