Revisit MockHttpServletResponse for Servlet 6.1

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This commit revisits the behavior of our `MockHttpServletResponse`
implementation with the javadoc clarifications applied in Servlet 6.1.

Prior to this change, adding or setting an HTTP response header with a
`null` name or value would not have the expected behavior:

* a `null` name should have no effect instead of throwing exceptions
* a `null` value when setting a header effectively removes the entry
  from the response headers

Also, this commit ensures that `IllegalStateException` are thrown if
`getWriter` is called after a previous `getOutputStream` (and vice
versa).

Closes gh-34467

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This commit is contained in:

Brian Clozel

2025-02-24 14:02:20 +01:00

parent 34129f3f89

commit 75329e6d9d

3 changed files with 677 additions and 611 deletions

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spring-test/src/test/java/org/springframework/mock/web/MockHttpServletResponseTests.java

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