Closes gh-11567

Closes gh-11566

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Closes gh-11526
Closes gh-10961

Closes gh-11302

Closes gh-11374

* pr/11486:
  Update copyright header
  Remove unnecessary condition in ConfigurationPropertyName

Closes gh-11486

This commit fixes the `responseCommitted` test in
`DefaultErrorWebExceptionHandlerIntegrationTests` and reworks the whole
test class to use the `ContextRunner` infrastructure.

Fixes gh-11519