Since support for the commandName attribute was removed from the
implementation of FormTag in Spring Framework 5.0, the presence of the
commandName attribute in the spring-form.tld file is no longer valid
and can lead one to assume that the commandName attribute is still
supported -- for example when using code completion in a JSP editor.
This commit therefore removes the obsolete commandName attribute in
spring-form.tld.
Closes gh-26337
Prior to this commit, the `NettyHeadersAdapter` would directly delegate
the `add()` and `set()` calls to the adapted
`io.netty.handler.codec.http.HttpHeaders`. This implementation rejects
`null` values with exceptions.
This commit aligns the behavior here with other implementations, by not
rejecting null values but simply ignoring them.
Fixes gh-26277
(cherry-picked from commit 83c19cd60e)
Prior to this commit, a change introduced in gh-25910 would close the
`JsonGenerator` after it's been used for JSON serialization. This would
not only close it and recycle resources, but also flush the underlyning
buffer to the output.
In a case where the JSON serialization process would throw an exception,
the buffer would be still flushed to the response output. Before the
change introduced in gh-25910, the response body could be still empty at
that point and error handling could write an error body instead.
This commits only closes the `JsonGenerator` when serialization has been
successful.
Note that we're changing this in the spirit of backwards compatibility
in the 5.2.x line, but change this won't be merged forward on the 5.3.x
line, for several reasons:
* this behavior is not consistent. If the JSON output exceeds a
certain size, or if Jackson has been configured to flush after each
write, the response output might still contain an incomplete JSON
payload (just like before this change)
* this behavior is not consistent with the WebFlux and Messaging codecs,
which are flushing or closing the generator
* not closing the generator for error cases prevents resources from
being recycled as expected by Jackson
Fixes gh-26246
1. Revert changes in setHeader from 5.2.9 that caused regression on self-copy.
2. Update copyHeaders/IfAbsent to ensure a copy of native headers.
3. Exit if source and target are the same instance, as an optimization.
Closes gh-26155
Prior to this commit, MergedAnnotationCollectors.toAnnotationSet()
created an intermediate ArrayList for storing the results prior to
creating a LinkedHashSet in the finishing step.
Since the creation of the intermediate list is unnecessary, this commit
simplifies the implementation of toAnnotationSet() by using the
Collector.of() factory method that does not accept a `finisher` argument.
The resulting Collector internally uses a `castingIdentity()` function
as the `finisher`.
Closes gh-26031
