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
Migrate `CoroutinesUtils` from Kotlin code to Java and drop the
`kotlin-coroutines` module.
This update removes the need for Kotlin tooling IDE plugins to be
installed.
Closes gh-27379
To slightly improve performance, this commit switches to
StringBuilder.append(char) instead of StringBuilder.append(String)
whenever we append a single character to a StringBuilder.
Closes gh-27098
Prior to this commit, the `RouterFunctionMapping` WebFlux.fn variant
would set the `HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE` as an
exchange attribute. This is useful for instrumentation purposes.
The WebMvc.fn variant would not do the same; this would lead to
"UNKNOWN" path metrics tags.
This commit ensures that the `RouterFunctionMapping` WebMvc.fn variant
does set the `BEST_MATCHING_PATTERN_ATTRIBUTE` and
`BEST_MATCHING_HANDLER_ATTRIBUTE` request attributes.
Closes gh-26963
This commit makes sure that any error handlers registered on the route
are also applied when an error occurs asynchronously. This commit
applies to asynchronous bodies with both CompletableFuture and Reactive
Streams, as well as completely asynchronous responses.
Closes gh-26831
Prior to this commit, evaluating validation hints for
@javax.validation.Valid caused exceptions being raised when getting the
value of this annotation, which does not exist. Bypassing
AnnotationUtils.getValue() in those cases can improve performance by
avoiding the cost incurred by raising exceptions.
See gh-26787
This commit introduces support in both servlet and webflux for the
"Accept-Patch" header, which is sent when the client sends unsupported
data in PATCH requests.
See section 2.2 of RFC 5789.
Closes gh-26759
This commit introduces support in both servlet and webflux for the
"Accept-Patch" header in OPTIONS requests, as defined in section 3.1 of
RFC 5789.
See gh-26759
Prior to this commit, a method-level @CrossOrigin maxAge value did not
override a class-level @CrossOrigin maxAge value. This contradicts the
Javadoc for @CrossOrgin which states the following.
For those attributes where only a single value can be accepted such
as allowCredentials and maxAge, the local overrides the global
value.
This commit ensures that a method-level @CrossOrigin maxAge value
overrides a class-level @CrossOrigin maxAge value.
Closes gh-26619
Prior to this commit, `ResourceUrlProvider` would listen and consider
all `ContextRefreshedEvent` and use the given context to detect
`SimpleUrlHandlerMapping`.
This could lead to situations where a `ResourceUrlProvider` uses another
application context than its own (in a parent/child context setup) and
detect the wrong set of handlers.
Because `ResourceUrlProvider` locks itself once the auto-detection is
done, we need to ensure that it considers only events sent by its
application context.
Fixes gh-26561
Previously this method returned headers only when a Content-Type part header
was present. Now it is guaranteed to return headers (possibly empty) as long
as there is a MultipartFile or Part with the given name.
Closes gh-26501
Prior to this commit, `SimpleUrlHandlerMapping` and other
implementations of `AbstractUrlHandlerMapping` would not strip the
Servlet context path from the request path before performing path
matching with PathPattern instances.
This resulted in requests not matching as expected if the application
was configured with a Servlet context path.
This commit ensures that the `RequestPath` "path whithin the
application" is used for matching against path patterns.
Fixes gh-26411
Prior to this commit, the `ResourceHttpRequestHandler` would write the
resource size to the "Content-Length" response header.
This is already done by the underlying `ResourceHttpMessageConverter`
and `ResourceRegionHttpMessageConverter`.
This commit avoid this duplicate operation and delegates instead to the
converters.
See gh-26330
Closes gh-26340
Since support for the commandName attribute was removed from the
implementation of FormTag in Spring Framework 5.0, the presence of the
commandName attribute in the spring-form.tld file is no longer valid
and can lead one to assume that the commandName attribute is still
supported -- for example when using code completion in a JSP editor.
This commit therefore removes the obsolete commandName attribute in
spring-form.tld.
Closes gh-26337
This commit makes sure that the matching pattern attributes is cleared
when an async result has been obtained, so that the subsequent
dispatch starts from scratch.
Closes gh-26239
This commit introduces AsyncServerResponse, an extension of
ServerResponse that is returned from ServerResponse.async and that
allows users to get the future response by calling the block method.
This is particularly useful for testing purposes.
This commit adds support for sending Server-Sent Events in WebMvc.fn,
through the ServerResponse.sse method that takes a SseBuilder DSL.
It also includes reference documentation.
Closes gh-25920
Remove the overriden pathVariable method from the nested request
wrapper,so that the merged attributes are used instead of the ones
provided by servlet.
Closes gh-26163
This commit introduces the following changes:
- Converters/codecs are now used based on generic type info.
- On WebMvc and WebFlux, kotlinx.serialization is enabled along
to Jackson because it only serializes Kotlin @Serializable classes
which is not enough for error or actuator endpoints in Boot as
described on spring-projects/spring-boot#24238.
TODO: leverage Kotlin/kotlinx.serialization#1164 when fixed.
Closes gh-26147
Allow the body to be written in order for all headers to be set
as they would be on HTTP GET. The body content is ignored as a
lower level.
See gh-25976
The migration from JUnit 4 assertions to AssertJ assertions resulted in
several unnecessary casts from int to long that actually cause
assertions to pass when they should otherwise fail.
This commit fixes all such bugs for the pattern `.isNotEqualTo((long)`.
Prior to this commit, references to `JsonGenerator` and
`ByteArrayBuilder` were not closed/released within codecs calls.
This prevents Jackson from reusing more efficiently shared memory
resources.
This commit properly closes/releases Jackson resources in Spring MVC,
Spring WebFlux and Spring Messaging codecs.
A benchmark on WebFlux codecs (in both single value/streaming mode)
shows significant throughput and allocation improvements for small
payloads.
Closes gh-25910
This commit adds support for Kotlin Coroutines suspending functions to
Spring MVC, by converting those to a Mono that can then be handled by
the asynchronous request processing feature.
It also optimizes Coroutines detection with the introduction of an
optimized KotlinDetector.isSuspendingFunction() method that does not
require kotlin-reflect.
Closes gh-23611
Prior to this commit, the resource handler serving static resources for
Spring MVC and Spring WebFlux would always look at the
`Resource#lastModified` information, derive the `"Last-Modified"` HTTP
response header and support HTTP conditional requests with that
information.
In some cases, builds or packaging tools choose to set this last
modification date to a static date in the past. This allows tools to
have reproducible builds or to leverage caching given the static
resources content didn't change.
This can lead to problems where this static date (e.g. "1980-01-01") is
used literally in HTTP responses and will make the HTTP caching
mechanism counter-productive: the content of the resources changed, but
the application insists on saying it didn't change since the 80s...
This commit adds a new configuration option to disable this support -
there is no way to automatically discard those dates: there is no
standard for that and many don't use he "EPOCH 0 date" as it can lead to
compatibility issues with different OSes.
Closes gh-25845
Prior to this commit, error handlers in the WebMvc.fn and WebFlux.fn
router function builders had to be registered in an unintuitive, reverse
order, due to the filter chain composition model used.
This commit reverses the error handler order, so that more specific
error handlers can come before generic ones.
Closes gh-25541
This commit adds two overloaded methods for each HTTP method in the
WebFlux.fn and WebMvc.fn route builders: one method taking just a
handler function, the other a request predicate and handler function.
After this commit, it is no longer required to provide a String path,
which is particularly useful when nesting routes, and the path would be
"".
Closes gh-25752
This commit introduces a new async(Object) method in the WebMvc.fn,
taking a asynchronous response as argument in the form of a
CompletableFuture or Publisher. This allows for asynchronous setting
of headers and status (and not just body, which was already possible).
Closes gh-25828
We don't expect a browser to save error responses to a file but we
extend this protection anyway since "inline" is only a suggestion
that shouldn't have any side effects.
See reactor/reactor-core#2374
All usages of this API are in tests, which are not checking overflow or
concurrent emissions - so a simple replacement with `try***` equivalents
is fine.
This commit deprecates the `AppCacheManifestTransformer` implementations
since the appcache feature is being removed from the browsers.
Closes gh-25733
UrlPathHelper is often created and used without customizations or with
the same customizations. This commit introduces re-usable, instances.
Effectively a backport of commit 23233c.
See gh-25690
This commit makes several changes in both WebMvc.fn as well as
WebFlux.fn.
- ServerRequest now exposes a RequestPath through requestPath(), and
pathContainer() has been deprecated.
- The PathPredicate and PathResourceLookupFunction now respects this
RequestPath's pathInApplication() in their path-related
functionality.
- When nesting, the PathPredicate now appends the matched part of the
path to the current context path, instead of removing the matched
part (which was done previously). This has the same result: the
matched part is gone, but now the full path stays the same.
Closes gh-25270
MVC data class processor constructs target instance even in case of binding failure, as long as the corresponding method parameter is not marked as optional.
Closes gh-24372
Prior to this commit, MockHttpServletResponse's setCharacterEncoding()
method did not update the contentType property, which violates the
Servlet 2.4 Javadoc for getContentType() and setCharacterEncoding().
This commit addresses this issue; however, some existing tests may have
to be updated as a result of this change.
For example, note how some of the tests in this commit have been
refactored to use MediaType##isCompatibleWith() instead of asserting
exact matches for the value returned by MockHttpServletResponse's
getContentType() method.
Closes gh-25536
- The compiler is configured to retain compatibility with Kotlin 1.3.
- Explicit API mode is not yet enabled but could be in the future.
- Some exceptions thrown by Kotlin have changed to NullPointerException,
see https://youtrack.jetbrains.com/issue/KT-22275 for more details.
Closes gh-24171
Remove convenience Map that is to avoid. The only downside is that
getHandlerMethods requires a transformation but that should not be used frequently.
See gh-22961
This commit evolves the solution from M1 by parsing and caching patterns with the
target HandlerMapping's PathPatternParser. This makes it unnecessary for callers to
be aware of pattern parsing.
Closes gh-25312
This commit introduces a way to change the PathPatternParser used in
PathPredicates, by way of a ChangePathPatternParserVisitor. This
visitor is used by both WebFluxConfigurationSupport and
WebMvcConfigurationSupport to make sure the configured parser is used.
Closes gh-23236
This commit fixes a recent regression as a result of 5225a57411
with the determination of non-pattern vs pattern URLs. That in turn affects the ability to perform
direct matches by URL path.
There is also a fix in PathPattern to recognize "catch-all" patterns as pattern syntax.
See gh-24945
This commit introduces a spring.xml.ignore system property
which when set to true avoid initializing XML infrastructure.
A typical use case is optimizing GraalVM native image footprint
for applications not using XML. In order to be effective, those
classes should be initialized at build time:
- org.springframework.util.DefaultPropertiesPersister
- org.springframework.core.io.support.PropertiesLoaderUtils
- org.springframework.web.servlet.function.support.RouterFunctionMapping
- org.springframework.web.client.RestTemplate
- org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver
- org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport
- org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter
- org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter
- org.springframework.http.codec.support.BaseDefaultCodecs
- org.springframework.beans.PropertyEditorRegistrySupport
Closes gh-25151
Prior to this commit some of the default strategies defined
for the DispatcherServlet weren't included in the default
configuration for both Java and XML configuration.
The following default beans have been added to the configuration
with the name as expected by the DispatcherServlet:
- org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver
- org.springframework.web.servlet.theme.FixedThemeResolver
- org.springframework.web.servlet.support.SessionFlashMapManager
- org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator
Closes gh-25209
With #25209, DispatcherServlet.properties loading and parsing
will be useless for most of use cases, and it requires
configuration on GraalVM native images.
The purpose of this issue to make such loading and parsing lazy,
only invoked in getDefaultStrategies() if needed.
Closes gh-25257
Prior to this commit, calling the `setResponseBodyAdvice` method would
clear all existing `ResponseBodyAdvice` instances present in the list
before adding provided one.
This behavior is inconsistent with the Javadoc and other
implementations.
This brings the method in line with the existing documentation.
See gh-24204
In many places UrlPathHelper is created and used without any
customizations, in some cases repeatedly. This commit adds a
shared read-only UrlPathHelper instance with default settings.
See gh-25100
Prior to this commit, the `VersionResourceResolver` implementations
would write a strong ETag HTTP response header with the resolved version
of the resource (the actual value depending on the chosen strategy).
This approach doesn't work well when combined with HTTP compression.
Web servers disable HTTP response copression in the presence of strong
ETags since mutating the response body would break the contract.
This commit changes this semantic and ensures that weak ETags are used
instead.
Closes gh-24898
This commit makes the default ServerRequest implementation use a pre-
parsed path container, instead of parsing the path for each invocation
of pathContainer().
This commit changes the way RouterFunctions registered to the builder
are composed in both WebFlux.fn and WebMvc.fn.
Prior to this commit, all routes added to the build were composed with
`reduce`.
After this commit, all routes are stored in a special router function,
allowing for more efficient execution and smaller stack traces.
Closes gh-24652
Credentials are not enabled by default contrary to the javadocs.
The credentials support must be enabled via #allowCredentials.
Closes gh-24691
Co-authored-by: Martin Dindoffer <martin.dindoffer@sigp.eu>
This commit adds the checkNotModified method to ServerRequest in both
WebFlux.fn and WebMvc.fn. Unlike other checkNotModified methods found
in the framework, this method does not return a boolean, but rather
a response wrapped in a Mono/Optional. If the resource has
not been changed, the not-modified response can be returned directly;
if the resource has changed, the user can create a corresponding
response using switchIfEmpty/orElse(Get).
Closes gh-24173
These calls were added in error when trying to fix#22797 and #23775.
They are not needed in 304 scenarios. Those have no response content and
are skipped by ShallowETagHeaderFilter based on the status.
This leaves disableContentCaching invoked only in streaming scenarios,
which was the original intent and should be the only reason for that
method.
See gh-24635
The attribute was previously removed only before exception resolution
in the DispatcherServlet in order to allow error rendering to make an
independent choice on content negotation.
However, Boot rendering happens later in an ERROR dispatch which could
also be a nested dispatch on some servers. So the attribute must also
generally be removed prior to mapping.
We also move the methods where this is done to the base
RequestMappingInfoHandlerMapping class which also deals with the
produces condition and where the producible attribute is added in the
first place.
Closes gh-24466
As per the Javadoc of ConcurrentHashMap its computeIfAbsent
implementation is atomic and hence already synchronized internally,
so we can remove the surrounding synchronization block.
See gh-24470
This commit deprecates PathExtensionContentNegotiationStrategy and
ServletPathExtensionContentNegotiationStrategy and also updates code
that depends on them internally to remove that dependence.
See gh-24179
This commit updates CORS support in order to check Origin header
in CorsUtils#isPreFlightRequest which does not change how Spring
MVC or WebFlux process CORS request but is more correct in term
of behavior since it is a public API potentially used in another
contexts.
It also removes an unnecessary check in
AbstractHandlerMethodMapping#hasCorsConfigurationSource and processes
every preflight request with PreFlightHandler.
Closes gh-24327
When a request is mapped through a producible condition on an
@RequestMapping, then a failure to find a converter/decoder should be
a 500 because the return type + media type pair were declared by the
controller and that should be possible to render.
Closes gh-23287