Refactor `PropertyMapper` so that it no longer calls adapter or
predicate methods by default when the source value is `null`. This
effectively makes all default calls the same as using
`alwaysWhenNotNull` in the previous generation of the code.
For the limited times when you do need to deal with `null` values, the
new `always()` method can be used.
For example,
map.from(source::method).to(destination::method);
Will not call `destination.method(...)` if `source.method()` returns
`null`.
Where as:
map.from(source::method).always().to(destination::method);
Will call `destination.method(null)` if `source.method()` returns
`null`.
This update provides clearer semantics for the API and allows for better
JSpecify nullability annotations. It has also simplified much of our
existing property mapper code.
Closes gh-47024
Co-authored-by: Moritz Halbritter <moritz.halbritter@broadcom.com>
Spring Boot 4 requires Jakarta EE 11. Jersey 4 will support EE 11 but
its release schedule is uncertain. Furthermore, Jersey does not yet
support Jackson 3 and there's no clear timeline for when Jackson 3
will be supported.
In light of the above, this commit removes support for Jersey.
Reinstating support can be considered once there's a Jersey GA that
supports Jakarta EE 11 or its clear that one will be available in
time for Boot's GA in November. Ideally, support for Jackson 3 would
also be available before reinstating Jersey support.
Closes gh-47017
Spring Framework 7.0 requires a Servlet 6.1 baseline for Servlet containers.
Partial Servlet 6.1 support is available on the `main` Undertow branch,
but there isn't any milestone version available for the undertow 2.4
generation. At this stage of our 4.0 schedule, we think it's safer to drop
Undertow support now.
Closes: gh-46917
Andy Wilkinson
Phillip Webb
Moritz Halbritter
Brian Clozel