Prior to this commit, GroovyDynamicElementReader was implemented in
Groovy, which required that developers have Groovy language support
installed and configured in their IDEs.
This commit ports GroovyDynamicElementReader from Groovy to Java,
making the compilation much simpler and allowing developers to open the
project in Eclipse or VSCode (or other IDEs without Groovy support)
without compiler errors.
This commit also converts related tests from Groovy to Java.
Closes gh-27945
Prior to this commit, if a PropertySourcesPlaceholderConfigurer bean
was configured with its ignoreUnresolvablePlaceholders flag set to
true, unresolvable placeholders in an @Value annotation were not
ignored, resulting in a BeanCreationException for the bean using @Value.
For example, given a property declared as `my.app.var = ${var}` without
a corresponding `var` property declared, an attempt to resolve
`@Value("${my.app.var}")` resulted in the following exception.
java.lang.IllegalArgumentException: Could not resolve placeholder 'var' in value "${var}"
This commit fixes this by modifying
PropertySourcesPlaceholderConfigurer's postProcessBeanFactory(...)
method so that a local PropertyResolver is created if the
ignoreUnresolvablePlaceholders flag is set to true. The local
PropertyResolver then enforces that flag, since the Environment in the
ApplicationContext is most likely not configured with
ignoreUnresolvablePlaceholders set to true.
Closes gh-27947
This commit adds default methods to CachingConfigurer and
JCacheConfigurer and removes the reference to their respective support
classes as they are now irrelevant.
Closes gh-27811
In order to be able to use text blocks and other new Java language
features, we are upgrading to a recent version of Checkstyle.
The latest version of spring-javaformat-checkstyle (0.0.28) is built
against Checkstyle 8.32 which does not include support for language
features such as text blocks. Support for text blocks was added in
Checkstyle 8.36.
In addition, there is a binary compatibility issue between
spring-javaformat-checkstyle 0.0.28 and Checkstyle 8.42. Thus we cannot
use Checkstyle 8.42 or higher.
In this commit, we therefore upgrade to spring-javaformat-checkstyle
0.0.28 and downgrade to Checkstyle 8.41.
This change is being applied to `5.3.x` as well as `main` in order to
benefit from the enhanced checking provided in more recent versions of
Checkstyle.
Closes gh-27481
