Prior to this commit, `ServerHttpRequest.mutate()` would not reflect
changes made on the "Accept" and "Content-Type" HTTP headers.
This was due to the fact that the instantiation of a new request based
on the mutated values would not use the writable HTTP headers used
during the mutation, but rather a read-only view of the headers backed
by `ReadOnlyHttpHeaders`.
`ReadOnlyHttpHeaders` caches those values for performance reasons, so
getting those from the new request would not reflect the changes made
during the mutation phase.
This commit ensures that the new request uses the mutated headers.
Fixes gh-26615
This commit better aligns how URI variable placeholders are detected
in UriComponentsBuilder#encode (i.e. the pre-encoding of the literal
parts of a URI template) and how they are expanded later on.
The latter relies on a pattern that stops at the first closing '}'
which excludes the possibility for well-formed, nested placeholders
other than variables with regex syntax, e.g. "{year:\d{1,4}}".
UriComponentsBuilder#encode now also stops at the first closing '}' and
further ensures the placeholder is not empty and that it has '{' before
deciding to treat it as a URI variable.
Closes gh-26466
Remove support for open polymorphic serialization in
kotlinx.serialization web converters and codecs in order
to prevent serialization handling suitable for Jackson
or other general purpose Java JSON libraries.
This will probably need further refinements for collections
for example, and could ultimately be fixed when
kotlinx.serialization will provide a dedicated function to
evaluate upfront if a type can be serialized or not.
Closes gh-26298
Prior to this commit, WebFlux native headers adapters would delegate the
`httpHeaders.keySet` to underlying implementations that do not honor the
`remove*` methods.
This commit fixes the `Set` implementation backing the
`httpHeaders.keySet` and ensures that headers can be safely removed from
the set.
Fixes gh-26361
This commit only writes the 'charset' parameter in the written headers
if it is non-default (not UTF-8), since RFC7578 states that the only
allowed parameter is 'boundary'.
See gh-25885
Closes gh-26290
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-26274
This commit introduces the following changes:
- Converters/codecs are now used based on generic type info.
- On WebMvc and WebFlux, kotlinx.serialization is enabled along
to Jackson because it only serializes Kotlin @Serializable classes
which is not enough for error or actuator endpoints in Boot as
described on spring-projects/spring-boot#24238.
TODO: leverage Kotlin/kotlinx.serialization#1164 when fixed.
Closes gh-26147
This commit only writes the 'charset' parameter in the written headers
if it is non-default (not UTF-8), since RFC7578 states that the only
allowed parameter is 'boundary'.
Closes gh-25885
The migration from JUnit 4 assertions to AssertJ assertions resulted in
several unnecessary casts from int to long that actually cause
assertions to pass when they should otherwise fail.
This commit fixes all such bugs for the pattern `.isNotEqualTo((long)`.