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
With this commit, bean definition profiles declared via @ActiveProfiles
are once again stored in registration order, in order to support use
cases in Spring Boot and other frameworks that depend on the
registration order.
This effectively reverts the changes made in conjunction with gh-25973.
Closes gh-26004
This commit makes copies of the default headers and cookies when a
WebClient is built, so that subsequent changes to these do not affect
previously built clients.
Closes: gh-25992
Allow the body to be written in order for all headers to be set
as they would be on HTTP GET. The body content is ignored as a
lower level.
See gh-25976
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)`.
Prior to this commit, two @ActiveProfiles declarations with the same
profiles but different order resulted in an identical, duplicate
ApplicationContext in the context cache in the Spring TestContext
Framework.
This commit uses a TreeSet to ensure that registered active profiles
are both unique and sorted, thereby avoiding cache misses for
semantically identical active profiles configuration on different test
classes.
Closes gh-25973
