JIRA: https://jira.spring.io/browse/SPR-13784
JDK8 and Apache Commons Codec support the RFC 4648
"URL and Filename Safe" Base64 alphabet.
Add methods to `Base64Utils` to support this feature.
This commit migrates all remaining tests from JUnit 3 to JUnit 4, with
the exception of Spring's legacy JUnit 3.8 based testing framework that
is still in use in the spring-orm module.
Issue: SPR-13514
This commit picks up where 3eacb837c2
(SPR-13345) left off by adding support for transitive implicit aliases
configured via @AliasFor.
Issue: SPR-13405
Spring Framework 4.2 introduced support for aliases between annotation
attributes that fall into the following two categories.
1) Alias pairs: two attributes in the same annotation that use
@AliasFor to declare that they are explicit aliases for each other.
2) Meta-annotation attribute overrides: an attribute in one annotation
uses @AliasFor to declare that it is an explicit override of an
attribute in a meta-annotation.
However, the existing functionality fails to support the case where two
attributes in the same annotation both use @AliasFor to declare that
they are both explicit overrides of the same attribute in the same
meta-annotation. In such scenarios, one would intuitively assume that
two such attributes would be treated as "implicit" aliases for each
other, analogous to the existing support for explicit alias pairs.
Furthermore, an annotation may potentially declare multiple aliases
that are effectively a set of implicit aliases for each other.
This commit introduces support for implicit aliases configured via
@AliasFor through an extensive overhaul of the support for alias
lookups, validation, etc. Specifically, this commit includes the
following.
- Introduced isAnnotationMetaPresent() in AnnotationUtils.
- Introduced private AliasDescriptor class in AnnotationUtils in order
to encapsulate the parsing, validation, and comparison of both
explicit and implicit aliases configured via @AliasFor.
- Switched from single values for alias names to lists of alias names.
- Renamed getAliasedAttributeName() to getAliasedAttributeNames() in
AnnotationUtils.
- Converted alias map to contain lists of aliases in AnnotationUtils.
- Refactored the following to support multiple implicit aliases:
getRequiredAttributeWithAlias() in AnnotationAttributes,
AbstractAliasAwareAnnotationAttributeExtractor,
MapAnnotationAttributeExtractor, MergedAnnotationAttributesProcessor
in AnnotatedElementUtils, and postProcessAnnotationAttributes() in
AnnotationUtils.
- Introduced numerous tests for implicit alias support, including
AbstractAliasAwareAnnotationAttributeExtractorTestCase,
DefaultAnnotationAttributeExtractorTests, and
MapAnnotationAttributeExtractorTests.
- Updated Javadoc in @AliasFor regarding implicit aliases and in
AnnotationUtils regarding "meta-present".
Issue: SPR-13345
SocketUtils is used to find available ports on localhost; however,
prior to this commit, SocketUtils incorrectly reported a port as
available on localhost if another process was already bound to
localhost on the given port but not to other network interfaces. In
other words, SocketUtils determined that a given port was available for
some interface though not necessarily for the loopback interface.
This commit addresses this issue by refactoring SocketUtils so that it
tests the loopback interface to ensure that the port is actually
available for localhost.
Issue: SPR-13321
This commit introduces an additional test case to ensure that explicit
local attribute aliases (configured via @AliasFor) do not accidentally
override attributes of the same names in meta-annotations (i.e., by
convention).
Issue: SPR-13325
Prior to this commit, attempting to synthesize an annotation from a map
of annotation attributes that contained nested maps instead of nested
annotations would result in an exception.
This commit addresses this issue by properly synthesizing nested maps
and nested arrays of maps into nested annotations and nested arrays of
annotations, respectively.
Issue: SPR-13338
It is a configuration error if an alias is declared via @AliasFor for
an attribute in a meta-annotation and the meta-annotation is not
meta-present. However, prior to this commit, the support for validating
the configuration of @AliasFor in AnnotationUtils currently silently
ignored such errors.
This commit fixes this by throwing an AnnotationConfigurationException
whenever a required meta-annotation is not present or meta-present on
an annotation that declares an explicit alias for an attribute in the
meta-annotation.
Issue: SPR-13335
Prior to this commit, an explicit override for an attribute in a
meta-annotation configured via @AliasFor could potentially result in an
incorrect override of an attribute of the same name but in the wrong
meta-annotation.
This commit fixes the algorithm in getAliasedAttributeName(Method,
Class) in AnnotationUtils by ensuring that an explicit attribute
override is only applied to the configured target meta-annotation
(i.e., configured via the 'annotation' attribute in @AliasFor).
Issue: SPR-13325
SPR-11512 introduced support for annotation attribute aliases via
@AliasFor, requiring the explicit declaration of the 'attribute'
attribute. However, for aliases within an annotation, this explicit
declaration is unnecessary.
This commit improves the readability of alias pairs declared within an
annotation by introducing a 'value' attribute in @AliasFor that is an
alias for the existing 'attribute' attribute. This allows annotations
such as @ContextConfiguration from the spring-test module to declare
aliases as follows.
public @interface ContextConfiguration {
@AliasFor("locations")
String[] value() default {};
@AliasFor("value")
String[] locations() default {};
// ...
}
Issue: SPR-13289
Prior to this commit, Spring's MimeType checked for equality between
two MIME types based on the equality of their properties maps; however,
the properties maps contain string representations of the "charset"
values. Thus, "UTF-8" is never equal to "utf-8" which breaks the
contract for character set names which must be compared in a
case-insensitive manner.
This commit addresses this issue by ensuring that "charset" properties
in MimeType instances are compared as Java Charset instances, thereby
ignoring case when checking for equality between charset names.
Issue: SPR-13157
This commit introduces a convenience method in AnnotationUtils for
synthesizing an annotation from its default attribute values.
TransactionalTestExecutionListener has been refactored to invoke this
new convenience method.
Issue: SPR-13087
This commit introduces support for automatically resolving a container
annotation configured via @Repeatable in AnnotationUtils'
getRepeatableAnnotations() and getDeclaredRepeatableAnnotations()
methods.
Issue: SPR-13068
This commit introduces a minor bug fix for getRepeatableAnnotations()
so that it fully complies with the contract of Java's
getAnnotationsByType() method with regard to repeatable annotations
declared on multiple superclasses.
Issue: SPR-13068
Prior to this commit, the implementation of getRepeatableAnnotation()
in Spring's AnnotationUtils complied neither with the contract of
getAnnotationsByType() nor with the contract of
getDeclaredAnnotationsByType() as defined in AnnotatedElement in Java 8.
Specifically, unexpected results can be encountered when using Spring's
support for @Repeatable annotations: either annotations show up in the
returned set in the wrong order, or annotations are returned in the set
that should not even be found based on the semantics of @Repeatable.
This commit remedies this problem by deprecating the existing
getRepeatableAnnotation() methods and replacing them with new
getRepeatableAnnotations() and getDeclaredRepeatableAnnotations()
methods that comply with the contracts of Java's getAnnotationsByType()
and getDeclaredAnnotationsByType(), respectively.
Issue: SPR-13068
The initial support for synthesizing an annotation from a Map (or
AnnotationAttributes) introduced in SPR-13067 required that the map
contain key-value pairs for every attribute defined by the supplied
annotationType. However, there are use cases that would benefit from
being able to supply a reduced set of attributes and still have the
annotation synthesized properly.
This commit refines the validation mechanism in
MapAnnotationAttributeExtractor so that a reduced set of attributes may
be supplied. Specifically, if an attribute is missing in the supplied
map the attribute will be set either to value of its alias (if an alias
value configured via @AliasFor exists) or to the value of the
attribute's default value (if defined), and otherwise an exception will
be thrown.
Furthermore, TransactionalTestExecutionListener has been refactored to
take advantage of this new feature by synthesizing an instance of
@TransactionConfiguration solely from the default values of its
declared attributes.
Issue: SPR-13087
In AnnotatedElementUtils, all methods pertaining to merging annotation
attributes have been renamed to "getMerged*()" and "findMerged*()"
accordingly. Existing methods such as getAnnotationAttributes(..) have
been deprecated in favor of the more descriptive "merged" variants.
This aligns the naming conventions in AnnotatedElementUtils with those
already present in AnnotationReadingVisitorUtils.
The use of "annotationType" as a variable name for the fully qualified
class name of an annotation type has been replaced with
"annotationName" in order to improve the readability and intent of the
code base.
In MetaAnnotationUtils.AnnotationDescriptor, getMergedAnnotation() has
been renamed to synthesizeAnnotation(), and the method is now
overridden in UntypedAnnotationDescriptor to always throw an
UnsupportedOperationException in order to avoid potential run-time
ClassCastExceptions.
Issue: SPR-11511
Prior to this commit, there existed several isEmpty() methods scattered
across various utilities such as ObjectUtils, CollectionUtils, and
StringUtils; however, each of these methods requires a cast to the type
supported for that particular variant.
This commit introduces a general-purpose isEmpty(Object) method in
ObjectUtils that transparently supports multiple object types in a
central location without the need for casts or juggling multiple
utility classes.
Issue: SPR-13119
Provide a mean to detect the actual ResolvableType based on a instance as
a counter measure to type erasure.
Upgrade the event infrastructure to detect if the event (or the payload)
implements such interface. When this is the case, the return value of
`getResolvableType` is used to validate its generic type against the
method signature of the listener.
Issue: SPR-13069
This commit introduces a "synthesized annotation" alternative to
getAnnotationAttributes() in AnnotatedElementUtils, analogous to the
recently introduced findAnnotation() methods.
Issue: SPR-13082
Spring Framework 4.2 RC1 introduced support for synthesizing an
annotation from an existing annotation in order to provide additional
functionality above and beyond that provided by Java. Specifically,
such synthesized annotations provide support for @AliasFor semantics.
As luck would have it, the same principle can be used to synthesize an
annotation from any map of attributes, and in particular, from an
instance of AnnotationAttributes.
The following highlight the major changes in this commit toward
achieving this goal.
- Introduced AnnotationAttributeExtractor abstraction and refactored
SynthesizedAnnotationInvocationHandler to delegate to an
AnnotationAttributeExtractor.
- Extracted code from SynthesizedAnnotationInvocationHandler into new
AbstractAliasAwareAnnotationAttributeExtractor and
DefaultAnnotationAttributeExtractor implementation classes.
- Introduced MapAnnotationAttributeExtractor for synthesizing an
annotation that is backed by a map or AnnotationAttributes instance.
- Introduced a variant of synthesizeAnnotation() in AnnotationUtils
that accepts a map.
- Introduced findAnnotation(*) methods in AnnotatedElementUtils that
synthesize merged AnnotationAttributes back into an annotation of the
target type.
The following classes have been refactored to use the new support for
synthesizing AnnotationAttributes back into an annotation.
- ApplicationListenerMethodAdapter
- TestAnnotationUtils
- AbstractTestContextBootstrapper
- ActiveProfilesUtils
- ContextLoaderUtils
- DefaultActiveProfilesResolver
- DirtiesContextTestExecutionListener
- TestPropertySourceAttributes
- TestPropertySourceUtils
- TransactionalTestExecutionListener
- MetaAnnotationUtils
- MvcUriComponentsBuilder
- RequestMappingHandlerMapping
In addition, this commit also includes changes to ensure that arrays
returned by synthesized annotations are properly cloned first.
Issue: SPR-13067
Prior to this commit, when a nested array of annotations was
synthesized while adapting values within an AnnotationAttributes map,
the array was improperly replaced with an array of type Annotation[]
instead of an array of the concrete annotation type, which can lead to
unexpected run-time exceptions.
This commit fixes this bug by replacing annotations in the existing
array with synthesized versions of those annotations, thereby retaining
the original array's component type.
Issue: SPR-13077
This commit introduces support in AnnotationAttributes for retrieving
nested annotations that is on par with the existing type-safe support
for retrieving nested AnnotationAttributes.
Issue: SPR-13074
AnnotationAttributes has existed for several years, but none of the
"get" methods that make up its public API are documented. In many
cases, the behavior can be inferred from the name of the method, but
for some methods there are "hidden gems" and unexpected behavior
lurking behind the scenes.
This commit addresses this issue by documenting all public methods. In
addition, the hidden support for converting single elements into
single-element arrays has also been documented and tested.
Issue: SPR-13072
This commit introduces a test that will fail if SynthesizedAnnotation is
not public as is required by the contract for getProxyClass() in
java.lang.reflect.Proxy.
Issue: SPR-13057
This commit introduces first-class support for aliases for annotation
attributes. Specifically, this commit introduces a new @AliasFor
annotation that can be used to declare a pair of aliased attributes
within a single annotation or an alias from an attribute in a custom
composed annotation to an attribute in a meta-annotation.
To support @AliasFor within annotation instances, AnnotationUtils has
been overhauled to "synthesize" any annotations returned by "get" and
"find" searches. A SynthesizedAnnotation is an annotation that is
wrapped in a JDK dynamic proxy which provides run-time support for
@AliasFor semantics. SynthesizedAnnotationInvocationHandler is the
actual handler behind the proxy.
In addition, the contract for @AliasFor is fully validated, and an
AnnotationConfigurationException is thrown in case invalid
configuration is detected.
For example, @ContextConfiguration from the spring-test module is now
declared as follows:
public @interface ContextConfiguration {
@AliasFor(attribute = "locations")
String[] value() default {};
@AliasFor(attribute = "value")
String[] locations() default {};
// ...
}
The following annotations and their related support classes have been
modified to use @AliasFor.
- @ManagedResource
- @ContextConfiguration
- @ActiveProfiles
- @TestExecutionListeners
- @TestPropertySource
- @Sql
- @ControllerAdvice
- @RequestMapping
Similarly, support for AnnotationAttributes has been reworked to
support @AliasFor as well. This allows for fine-grained control over
exactly which attributes are overridden within an annotation hierarchy.
In fact, it is now possible to declare an alias for the 'value'
attribute of a meta-annotation.
For example, given the revised declaration of @ContextConfiguration
above, one can now develop a composed annotation with a custom
attribute override as follows.
@ContextConfiguration
public @interface MyTestConfig {
@AliasFor(
annotation = ContextConfiguration.class,
attribute = "locations"
)
String[] xmlFiles();
// ...
}
Consequently, the following are functionally equivalent.
- @MyTestConfig(xmlFiles = "test.xml")
- @ContextConfiguration("test.xml")
- @ContextConfiguration(locations = "test.xml").
Issue: SPR-11512, SPR-11513
This commit updates the "get semantics" search algorithm used in
`AnnotatedElementUtils` so that locally declared 'composed annotations'
are favored over inherited annotations.
Specifically, the internal `searchWithGetSemantics()` method now
searches locally declared annotations before searching inherited
annotations.
All TODOs in `AnnotatedElementUtilsTests` have been completed, and all
ignored tests have been reinstated.
Issue: SPR-11598
Prior to this commit, the `getAnnotation()` method in `TypeDescriptor`
only supported a single level of meta-annotations. In other words, the
annotation hierarchy would not be exhaustively searched.
This commit provides support for arbitrary levels of meta-annotations
in `TypeDescriptor` by delegating to `AnnotationUtils.findAnnotation()`
within `TypeDescriptor.getAnnotation()`.
Issue: SPR-12793
Prior to this commit, AntPathMatcher would not correctly combine a path
that ends with a separator with a path that starts with a separator.
For example, `/foo/` + `/bar` combined into `/foo//bar`.
Specifically, this commit:
- Removes the duplicated separator in combined paths
- Improves RequestMappingInfo's toString() representation
- Fixes Javadoc formatting in AntPathMatcher
- Polishes AntPathMatcherTests
- Polishes Javadoc in AbstractRequestCondition
Issue: SPR-12975
This commit picks up where SPR-11483 left off, with the goal of
eliminating all unnecessary inspection of core JDK annotations in
Spring's annotation search algorithms in AnnotatedElementUtils and
AnnotationMetadataReadingVisitor.
Issue: SPR-12989
- Methods which search for a specific annotation now properly ensure
that the sought annotation was actually found.
- Both the "get" and the "find" search algorithms no longer needlessly
traverse meta-annotation hierarchies twice.
- Both the "get" and the "find" search algorithms now properly
increment the metaDepth when recursively searching within the
meta-annotation hierarchy.
- Redesigned getMetaAnnotationTypes() so that it doesn't needlessly
search irrelevant annotations.
- Documented and tested hasMetaAnnotationTypes().
- Documented isAnnotated().
Issue: SPR-11514
This commit documents the status quo for the getMetaAnnotationTypes()
method in AnnotatedElementUtils and adds appropriate regression tests to
AnnotatedElementUtilsTests.
In addition, this commit also introduces a SimpleAnnotationProcessor
base class in AnnotatedElementUtils.
Issue: SPR-11514
This commit introduces support for finding annotations on abstract,
bridge, and interface methods in AnnotatedElementUtils.
- Introduced dedicated findAnnotationAttributes() methods in
AnnotatedElementUtils that provide first-class support for
processing methods, class hierarchies, interfaces, bridge methods,
etc.
- Introduced find/get search algorithm dichotomy in
AnnotatedElementUtils which is visible in the public API as well as
in the internal implementation. This was necessary in order to
maintain backwards compatibility with the existing API (even though
it was undocumented).
- Reverted all recent changes made to the "get semantics" search
algorithm in AnnotatedElementUtils in order to ensure backwards
compatibility, and reverted recent changes to
JtaTransactionAnnotationParser and SpringTransactionAnnotationParser
accordingly.
- Documented internal AnnotatedElementUtils.Processor<T> interface.
- Enabled failing tests and introduced
findAnnotationAttributesFromBridgeMethod() test in
AnnotatedElementUtilsTests.
- Refactored ApplicationListenerMethodAdapter.getCondition() and
enabled failing test in TransactionalEventListenerTests.
- AnnotationUtils.isInterfaceWithAnnotatedMethods() is now package
private.
Issue: SPR-12738, SPR-11514, SPR-11598
This commit introduces support in AnnotatedElementUtils for finding
annotations declared on interfaces at the type level.
NB: this commit does not include support for finding annotations
declared on interface methods.
In order to maintain backward compatibility with @Transactional
annotation attribute processing, a new getAnnotationAttributes() method
has been added to AnnotatedElementUtils that provides a flag to control
whether interfaces should be searched.
SpringTransactionAnnotationParser and JtaTransactionAnnotationParser
have been updated accordingly to ensure that interfaces are not
unintentionally searched in the @Transactional resolution process.
This commit also introduces additional tests and updates TODOs for
SPR-12738.
Issue: SPR-12944, SPR-12738
Prior to this commit, the search algorithm used by the
findAnnotation(Method, Class) method in AnnotationUtils only found
direct annotations or direct meta-annotations (i.e., one level of
meta-annotations).
This commit reworks the search algorithm so that it supports arbitrary
levels of meta-annotations on methods. To make this possible, a new
findAnnotation(AnnotatedElement, Class) method has been introduced in
AnnotationUtils.
This fix also allows for the @Ignore'd tests in
TransactionalEventListenerTests to be re-enabled.
Issue: SPR-12941
- Now correctly using @Test(expected=...) where appropriate.
- Renamed DefaultConversionTests to DefaultConversionServiceTests.
- Moved all tests related to DefaultConversionService from
GenericConversionServiceTests to DefaultConversionServiceTests.
- No longer printing to System.out.
- Removed all duplicate instantiation of conversion services.
- Now using Java 8 streams to simplify implementations of custom test
converters. Also using streams in tests where appropriate.
Covers ReflectionUtils.doWithMethods as well as affected annotation post-processors.
Includes an extension of MethodMetadata for the detection of @Bean default methods.
Issue: SPR-12822
Issue: SPR-10919
Prior to this commit, the implementation of equals() in EncodedResource
was based solely on the resource and encoding. Thus, if a Charset were
specified instead of an encoding, invocations of equals() would not
work as expected.
This commit addresses this issue by including the charset in the
implementation of equals() and introducing corresponding tests in a new
EncodedResourceTests class. Furthermore, this commit makes
EncodedResource immutable and updates all Javadoc to reflect support
for the encoding and charset properties.
Issue: SPR-12767
This commit ensures Resources have consistent, non-empty, meaningful
implementations for getDescription(), thus ensuring that calls to
toString() (e.g., in log statements) no longer return an empty String.
This commit also polishes the Javadoc for various Resource
implementations.
Add StreamConverter to provide full support for converting
java.util.stream.Stream instances to and from collections or arrays.
Also attempt to convert the element type if necessary.
StreamConverter is registered by default in the DefaultConversionService
as long as Java8 is available.
Issue: SPR-12175
Previously, the `@Order` annotation was managed in an inconsistent way
when placed at the implementation level. For simple beans, it was
discovered properly but wasn't for beans requiring a proxy.
OrderComparator.SourceProvider now explicitly allows to return several
order sources; the default implementation returns not only the factory
method (if any) but also the target class if it happens to be different
from the class of the bean.
Issue: SPR-12636
Prior to this change, the ShallowEtagHeaderFilter would use a
ResizableByteArrayOutputStream to internally write data and calculate
the ETag. While that implementation is faster than the regular
ByteArrayOutputStream (since it has a better strategy for growing the
internal buffer), a lot of buffer copying/writing still happens.
This change adds a new FastByteArrayOutputStream implementation that
internally uses a LinkedList<Byte[]> to store the content. So when
writing bytes to that OutputStream implementation, new byte[] are
added to the list when the previous ones are full. This saves most
of the instantiating/copying operations.
Note that new methods were added in DigestUtils to allow usage of
Streams instead of byte[], which is more efficient in our case.
Fixes#653
Issue: SPR-12081
This commit introduces test methods in CollectionFactoryTests that
demonstrate how the APIs for createCollection() and createMap() are not
type-safe, specifically regarding the use of generics, raw types, and
casting.
SPR-12483 introduced automatic type conversion support for EnumSet and
EnumMap. However, the corresponding changes in CollectionFactory
contradict the existing contract for the "create approximate" methods
by creating a copy of the supplied set or map, thereby potentially
including elements in the returned collection when the returned
collection should in fact be empty.
This commit addresses this issue by ensuring that the collections
returned by createApproximateCollection() and createApproximateMap()
are always empty.
Furthermore, this commit improves the Javadoc throughout the
CollectionFactory class.
Issue: SPR-12533
This commit introduces test methods in CollectionFactoryTests that
demonstrate how the APIs for createApproximateCollection() and
createApproximateMap() are not type-safe, specifically regarding the use
of generics, raw types, and casting.
JUnit 4.12 created a 'public' version of the previously 'internal'
AssumptionViolatedException.
This commit upgrades Spring's Assume class to use this new public
version.
Prior to this commit, JOptCommandLinePropertySource prevented the
possibility of non-String option arguments. This effectively prevents
the use of JOpt's #ofType support (which allows specifying custom
argument types).
Now, non-String arguments are detected and converted to strings as
necessary. JOpt's #ofType now works as expected. A test has been added
to cover this case.
Prior to this commit, `AntPathMatcher.extractPathWithinPattern` would
not process correctly `**` patterns and would only match *one* path
segment in the given path.
This commit changes `extractPathWithinPattern` to allow multiple path
segments to be matched against a single `**` pattern segment.
Issue: SPR-10515
Update SystemEnvironmentPropertySource to attempt optimized Map lookups
first, and only fall-back to the defensive SecurityManager safe-mode
if these fail.
Issue: SPR-12224
Rework the @PropertySource parsing logic recently changed in commit
7c608886 to deal with the same source appearing on a @Configuration
class and an @Import class.
Processing now occurs in a single sweep, with any previously added
sources being converted to a CompositePropertySource.
Issue: SPR-12115
Prior to this commit, given an enum which implements some interface,
GenericConversionService would select the String -> Enum converter even
if a converter for String -> SomeInterface was registered. This also
affected converters that were registered for String ->
SomeBaseInterface, when SomeInterface extended SomeBaseInterface.
This change modifies the behavior of the private method
getClassHierarchy() by placing Enum.class as late as possible, pretty
much the same way as Object.class is handled.
Issue: SPR-12050
Make it possible to use a ListenableFuture with Java 8
lambda expressions, using a syntax like
listenableFuture.addCallback(() -> ..., () -> ...);
Issue: SPR-11820
In order to be able to use separators like "." (used by default
by most broker relays) instead of "/" for destination patterns
handling, the PathMatcher used in spring-messaging can now
be customized easily thanks to XML websocket namespace
or JavaConfig.
AntPathMatcher has been updated in order to use the configured path
separator instead of an hardcoded "/" for path concatenation.
Extension handling is now disabled when the "." separator is configured.
Issue: SPR-11660
This change modifies the SettableListenableFuture implementation to use
internally a ListenableFutureTask created with a "settable" Callable.
Issue: SPR-11614
A SettableListenableFuture implementation of Spring's ListenableFuture
The class is inspired by Google Guava’s
com.google.common.util.concurrent.SettableFuture, but this
implementation uses ReentrantReadWriteLock and CountDownLatch
internally to handle thread synchronization.
Issue: SPR-11614
After this change, java.util.Optional is supported with @RequestParam,
@RequestHeader, and @MatrixVariable arguments in Java 8. When Optional
is used the required flag is effectively ignored.
Issue: SPR-11829
Prior to this commit, AntPathMatcher had been refactored for SPR-6741.
During that process, a key feature has been removed:
When comparing two patterns, pattern elements (*, {}, etc) are counted
to score those patterns. When a pattern ends with ".*", the ending
wildcard should not be counted against pattern elements for this
pattern.
This commit reintroduces that behavior.
Issue: SPR-6741
Prior to this commit, "**" and "*" pattern elements had
the same priority when comparing two patterns.
So when comparing several patterns, the computed order was:
1- /hotels/{hotel}/bookings/{booking}
2- /hotels/**
3- /hotels/{hotel}/bookings/{booking}/customer/{customer}
This commit updates the comparator so that patterns ending
with "**" (a.k.a "catch-all" patterns) are less specific than
the others; in the previous example, the 2nd pattern would
then end up last.
This commit also optimizes the comparator implementation.
Issue: SPR-6741
This commit introduces OrderProvider and OrderProviderComparator, two
interfaces designed to externalize how a collection of element is sorted
according to their order value.
FactoryAwareOrderProvider is an OrderProvider implementation that knows
about the objects to order and the corresponding BeanFactory instance.
This allows to retrieve additional metadata about the actual instances
to sort, such as its factory method.
A @Bean method can now holds an additional @Order to define the order
value that this bean should have when injected as part of a collection
or array.
Issue: SPR-11310
This commit separates the BackOff configuration from an actual
execution. BackOffExecution now contains all the state of a
particular execution and BackOff is only meant to start (i.e.
create) a new execution.
The method "reset" has been removed as its no longer necessary:
when an execution does not need to be used for a given operation
anymore it can be simply discarded.
Issue: SPR-11746
Prior to this commit, DefaultMessageListenerContainer was recovering
on failure using a fixed time interval, potentially in an infinite way.
This commit adds an extra "backoff" property to the container that
permits to fine tune the recovery interval using a BackOff instance.
FixedBackOff provides a fixed interval between two attempts and a
maximum number of retries. ExponentialBackOff increases an initial
interval until a maximum interval has been reached. A BackOff instance
can return a special "STOP" time value that indicates that no further
attemps should be made. DefaultMessageListenerContainer uses this
value to stop the container.
protected method "sleepInbetweenRecoveryAttempts" has been renamed
to "applyBackOff" and now returns a boolean that indicate if the
back off has been applied and a new attempt should now be made.
Issue: SPR-11746
Prior to this commit, invoking the getMergedAnnotationAttributes()
method in AnnotationReadingVisitorUtils resulted in mutation of the
internal state of the ASM-based annotation metadata supplied to the
method.
This commit fixes this issue by making a copy of the original
AnnotationAttributes for the target annotation before merging attribute
values from the meta-annotation hierarchy.
This commit also introduces a slight performance improvement by
avoiding duplicate processing of the attributes of the target
annotation.
Issue: SPR-11710
This commit adds support for the JSR-107 cache annotations alongside
the Spring's cache annotations, that is @CacheResult, @CachePut,
@CacheRemove and @CacheRemoveAll as well as related annotations
@CacheDefaults, @CacheKey and @CacheValue.
Spring's caching configuration infrastructure detects the presence of
the JSR-107 API and Spring's JCache implementation. Both
@EnableCaching and the cache namespace are able to configure the
required JCache infrastructure when necessary. Both proxy mode
and AspectJ mode are supported.
As JSR-107 permits the customization of the CacheResolver to use for
both regular and exception caches, JCacheConfigurer has been
introduced as an extension of CachingConfigurer and permits to define
those.
If an exception is cached and should be rethrown, it is cloned and
the call stack is rewritten so that it matches the calling thread each
time. If the exception cannot be cloned, the original exception is
returned.
Internally, the interceptors uses Spring's caching abstraction by default
with an adapter layer when a JSR-107 component needs to be called.
This is the case for CacheResolver and CacheKeyGenerator.
The implementation uses Spring's CacheManager abstraction behind the
scene. The standard annotations can therefore be used against any
CacheManager implementation.
Issue: SPR-9616
This commit rationalizes the use of @Order so that the standard
@Priority annotation can be used instead. The handling of both
annotations are now defined in OrderUtils.
This also updates the link to the JavaEE API so that we refer to
JavaEE7 instead of JavaEE6.
Issue: SPR-11639
Improved the SAX to StAX (and vice-versa) bridge exposed via StaxUtils.
The old integration had some issues with namespace declaration
attributes, brought to light in a XMLUnit upgrade.
Issue: SPR-11549
Changes introduced in conjunction with issue SPR-11475 altered the
behavior of StandardAnnotationMetadata such that annotations could be
detected on superclasses, specifically in the case where the
AnnotatedElementUtils.getAllAnnotationAttributes() method is invoked to
obtain multiple annotations of the same type (on the lowest level in the
class hierarchy), as is the case for @Profile and @Conditional.
This commit partially reverts these changes as follows:
- All methods in AnnotatedElementUtils now set the
traverseClassHierarchy to false, thereby effectively reverting the
changes made in commit 1d30bf83a0.
Note, however, that the changes made to AnnotationUtils remain in
place.
- Introduced tests in AnnotationMetadataTests that verify behavior
present in Spring Framework 4.0.2 and earlier.
- Updated tests in AnnotatedElementUtilsTests so that they pass against
the reverted changes (i.e., align with the behavior present in Spring
Framework 4.0.2 and earlier).
- Refined Javadoc in AnnotationMetadata with regard to annotations
being "present" vs. "defined".
- Refined Javadoc in AnnotatedTypeMetadata.
Issue: SPR-11475, SPR-11595
Prior to this commit, the ShallowEtagHeaderFilter did not use the
content length given by the content generator to set the
ByteArrayOutputStream's buffer size.
This can lead to performance issues for large content since the buffer
grows as the content is being written.
This commit adds a new ByteArrayOutputStream variant called
ResizableByteArrayOutputStream. This implementation has public methods
for modifying the internal buffer size and does not synchronize on
buffer access.
This commit also make use of this new variant in
ShallowEtagHeaderFilter.
Issue: SPR-8271
Prior to this commit, the codebase was using a mix of log4j.xml
and log4j.properties for test-related logging configuration. This
can be an issue as log4j takes the xml variant first when looking
for a default bootstrap configuration.
In practice, some modules declaring the properties variant were
taking the xml variant configuration from another module.
The general structure of the configuration has also been
harmonized to provide a standard console output as well as an
easy way to enable trace logs for the current module.
Prior to this commit, Spring supported meta-annotation attribute
overrides in custom composed annotations with reflection-based
annotation processing but not with ASM-based annotation processing.
This commit ensures that meta-annotation attribute overrides are
supported in AnnotationMetadataReadingVisitor.getAnnotationAttributes().
Issue: SPR-11574
Also uses addAll instead of iteration over untyped collection now, supporting optimized addAll in target collection type, and avoids repeated getElementTypeDescriptor calls.
Issue: SPR-11479
Prior to this commit, the implementations of findAnnotation() in
AnnotationUtils and getAnnotationAttributes() in AnnotatedElementUtils
favored inherited annotations and inherited composed annotations over
composed annotations that are declared closer to the starting class
passed to these methods.
This commit addresses this issue as follows:
- Refactored AnnotationUtils to use getDeclaredAnnotation() and
getDeclaredAnnotations() instead of getAnnotation() and
getAnnotations() where appropriate.
- AnnotatedElementUtils.doProcess() supports a traverseClassHierarchy
flag to control whether the class hierarchy should be traversed,
using getDeclaredAnnotations() instead of getAnnotations() if the
flag is true.
- Overhauled Javadoc in AnnotatedElementUtils.
Issue: SPR-11475
This commit introduces a new isInJavaLangAnnotationPackage(Annotation)
method in AnnotationUtils. This method is now used in AnnotationUtils,
AnnotatedElementUtils, and MetaAnnotationUtils to ensure that search
algorithms do no search for meta-annotations on annotations in the
"java.lang.annotation" package.
The following are some empirical results from this change:
- The number of times that the findAnnotation(Class,Class,Set) method in
AnnotationUtils is recursively invoked while executing
AnnotationUtilsTests drops from 51 to 29.
- The number of times that the process(AnnotatedElement) method in
AnnotationUtils.AnnotationCollector is recursively invoked while
executing AnnotationUtilsTests.getRepeatableFromMethod() drops
from 16 to 2.
- The number of times that the doProcess() method in
AnnotatedElementUtils is recursively invoked while executing the
"getAnnotationAttributes() On MetaCycleAnnotatedClass with missing
target meta-annotation" test in AnnotatedElementUtilsTests drops
from 23 to 5.
- The number of times that the findAnnotationDescriptor(Class,Set,Class)
method in MetaAnnotationUtils is recursively invoked while executing
the "findAnnotationDescriptor() on MetaCycleAnnotatedClass with
missing target meta-annotation" test in MetaAnnotationUtilsTests drops
from 16 to 8.
Issue: SPR-11483
Juergen Hoeller
Sam Brannen
Gary Russell
Martin Lippert
Stephane Nicoll
Arjen Poutsma
Rossen Stoyanchev
Craig Andrews
Juergen Hoeller
Chris Beams
Brian Clozel
Phillip Webb
David Haraburda
Juergen Hoeller
Sebastien Deleuze
Arjen Poutsma
Rossen Stoyanchev
Mattias Severson
Brian Clozel
Stephane Nicoll