Implicit convention-based annotation attribute overrides have been
supported for a long time; however, Spring Framework 4.2 introduced
support for explicit annotation attribute overrides via @AliasFor.
Since explicit overrides are favorable to implicit overrides, and since
the support for convention-based overrides increases the complexity of
Spring's annotation search algorithms, this commit deprecates
convention-based overrides and logs a WARNING whey the are encountered.
For example, the following message is logged for a test that still
uses convention-based overrides. A log message is generated for each
such attribute in a given annotation but only once per application run.
WARN Support for convention-based annotation attribute overrides is
deprecated and will be removed in Spring Framework 6.1. Please
annotate the 'basePackages' attribute in
@org.springframework.context.annotation.ConfigurationClassPostProcessorTests$ComposedConfigurationWithAttributeOverrides
with an appropriate @AliasFor declaration.
Closes gh-28760
a68f5b1674