This commit provides an API to record the need for reflection,
resources, serialization, and proxies so that the runtime can be
optimized accordingly.
`RuntimeHints` provides an entry point to register the following:
* Reflection hints: individual elements of a type can be defined, as
well as a predefined categories (identified by the `MemberCategory`
enum). A method or constructor hint can refine whether the executable
should only be introspected or also invoked.
* Resource hints: patterns using includes/excludes identify the
resources to include at runtime. Resource bundles are also supported.
* Java Serialization hints: types that use java serialization can be
registered.
* Proxy hints: both interfaces-based (JDK) proxy and class-based proxy
can be defined.
This commit also introduces a `TypeReference` abstraction that permits
to record hints for types that are not available on the classpath, or
not compiled yet (generated code).
Closes gh-27829
Prior to this commit, the USER_DECLARED_METHODS MethodFilter in
ReflectionUtils did not actually filter methods declared in
java.lang.Object as stated in its Javadoc.
Consequently, if ReflectionUtils.doWithMethods was invoked with
USER_DECLARED_METHODS and Object.class as the class to introspect, all
non-bridge non-synthetic methods declared in java.lang.Object were
passed to the supplied MethodCallback, which breaks the contract of
USER_DECLARED_METHODS.
In addition, if USER_DECLARED_METHODS was composed with a custom
MethodFilter using `USER_DECLARED_METHODS.and(<custom MethodFilter>)`,
that composed method filter allowed all non-bridge non-synthetic
methods declared in java.lang.Object to be passed to the supplied
MethodCallback, which also breaks the contract of
USER_DECLARED_METHODS. This behavior resulted in regressions in code
that had previously used USER_DECLARED_METHODS by itself and then began
using USER_DECLARED_METHODS in a composed filter. For example, since
commit c419ea7ba7 ReflectiveAspectJAdvisorFactory has incorrectly
processed methods in java.lang.Object as candidates for advice methods.
This commit fixes this bug and associated regressions by ensuring that
USER_DECLARED_METHODS actually filters methods declared in
java.lang.Object. In addition, ReflectionUtils.doWithMethods now aborts
its search algorithm early if invoked with the USER_DECLARED_METHODS
filter and Object.class as the class to introspect.
Closes gh-27970
Prior to this commit, XmlValidationModeDetector did not properly parse
all categories of comments (described below). When such categories of
comments were encountered XmlValidationModeDetector may have
incorrectly detected that an XML file used a DTD when it used an XSD,
or vice versa.
This commit revises the parsing algorithm in XmlValidationModeDetector
so that multi-line comments and multiple comments on a single line are
properly recognized.
Specifically, with this commit the following categories of comments are
now handled properly.
- Multiple comments on a single line
- Multi-line comment: beginning on one line and then ending on another
line with an additional comment following on that same line.
- Multi-line comment: beginning at the end of XML content on one line
and then spanning multiple lines.
Closes gh-27915
Prior to this commit, our BlockHound integration tests were disabled
after the migration to a JDK 17 baseline since the build now always
runs on JDK 14 or higher.
To re-enable the tests we now supply the deprecated
-XX:+AllowRedefinitionToAddDeleteMethods command-line argument to the JVM
for tests in the Gradle build. Users can also configure this manually
within an IDE to run SpringCoreBlockHoundIntegrationTests.
If that command-line argument is removed from the JVM at some point in
the future, we will need to investigate an alternative solution.
See https://github.com/reactor/BlockHound/issues/33 for details.
Prior to this commit, the error message generated for a mismatched
number of generics did not include the information about the class in
question.
This commit improves the error message by providing more context,
specifically the result of invoking toGenericString() on the class.
For example, instead of throwing an IllegalArgumentException with the
error message "Mismatched number of generics specified", the error
message would now be "Mismatched number of generics specified for
public abstract interface java.util.Map<K,V>".
Closes gh-27847
This commits deprecates
- StringUtils::trimWhitespace in favor of String::strip
- StringUtils::trimLeadingWhitespace in favor of String::stripLeading
- StringUtils::trimTrailingWhitespace in favor of String::stripTrailing
Closes gh-27769
This commit makes several changes to MimeType and MediaType
related to the topic of specificity.
This commit deprecates the MimeType and MediaType Comparators.
Comparators require a transitive relationship, and the desired order for
these types is not transitive (see #27488).
Instead, this commit introduces two new MimeType methods: isMoreSpecific
and isLessSpecific, both of which return booleans. MediaType overrides
these methods to include the quality factor (q) in the comparison.
All MediaType sorting methods have been deprecated in favor of
MimeTypeUtils::sortBySpecificity. This sorting method now uses
MimeType::isLessSpecific in combination a bubble sort algorithm (which
does not require a transitive compare function).
Closes gh-27580
This commit introduces UnmodifiableMultiValueMap, an immutable wrapper
around a MultiValueMap, similar to what is returned by
Collections.unmodifiable*.
CollectionUtils::unmodifiableMultiValueMap now returns
UnmodifiableMultiValueMap.
Closes gh-27608
This commit makes sure that the Reactor context from a given mono or
flux is propagated to the Flux returned by a FluxSink. This change
affects both DataBufferUtils::write and internal classes used by the
DefaultPartHttpMessageReader.
Closes gh-27517
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
