Remove test-jar artifacts from Maven projects and relocate classes. The
majority of utilities now live in the `spring-boot-testsupport` module.
This update will help us to deploy artifacts using the standard Maven
deploy plugin in the future (which doesn't support the filtering of
individual artifacts).
Fixes gh-9493
This commit ensures that `setLogLevel` on the `LoggingSystem` accepts
a `null` level. A `null` level means any customization sets on that
level should be removed and the default configuration should be used
instead.
Effectively, the level of the parent logger is going to be used when
`setLevel` is called with `null` for a given logger.
Most JMX clients do not accept to pass `null` for an argument so an
empty String is translated to null in that specific case.
Closes gh-8776
This change aligns ErrorAttributes with ResponseEntityExceptionHandler
which takes a WebRequest as a parameter of its handleException method.
WebRequest extends RequestAttributes and provides access to much more
than just the request's attributes. For example request headers and
parameters are available from WebRequest.
Closes gh-7952
Closes gh-6555
Rework the ConfigurationPropertySources and related adapter classes to
help with performance. The ConfigurationPropertySources class now only
monitors for updates when `.attach` is used. The `.get` methods now
return the adapted version, but no longer checks to see if sources have
been added or removed on each call.
This commit also fixes a few caching issues and makes both the
`PropertyMapper` implementations true static singletons.
See gh-9000
CachePublicMetrics wasn't explicitly tested and was still using field
injection. This commit improves the situation in preparation of the fix
for gh-8984
Phillip Webb
Andy Wilkinson
Stephane Nicoll
Madhura Bhave
rajadilipkolli
Rocky Shang
Wesley Stratton
Eddú Meléndez
Gytis Trikleris