Improve message for `HttpStatusCodeException` with empty status text

[spring-projects-issues]

Jerzy Krolak opened SPR-17631 and commented

I noticed that in RestTemplate-based client, I'm getting error messages like 404 null and similar. Then I found that the Spring Boot application returns error statuses like the following:

> curl -v http://localhost:8080/page-not-found
(...)
< HTTP/1.1 404
< Content-Type: application/json;charset=UTF-8

which will look like this:

org.springframework.web.client.HttpClientErrorException$NotFound: 404 null

Others return results like:

curl -v http://google.com/page-not-found
(...)
< HTTP/1.1 404 Not Found
< Content-Type: text/html; charset=UTF-8

Which results in a nice looking error message:

org.springframework.web.client.HttpClientErrorException$NotFound: 404 Not Found

I'm not sure if I should raise is as a bug - it does not seem that the status message is mandatory.

Is this a bug, or a feature?

---

Affects: 5.1.3

Issue Links:

• Exception hierarchy under HttpClientException and HttpServerException for the RestTemplate [SPR-15404] #19967 Exception hierarchy under HttpClientException and HttpServerException for the RestTemplate

[spring-projects-issues]

Jerzy Krolak commented

Here is an example test case: https://github.com/jerzykrlk/demo404/blob/master/src/test/java/com/example/demo/DemoApplicationTests.java#L47

[poutsma]

Thanks for providing a test case!