spring-projects/spring-framework v5.3.3 on GitHub

⭐ New Features

Add null check for ExceptionHandlerMethodResolvers #26339
ClassNotFoundException: ExchangeFunction when using WebTestClient with Spring MVC #26308
Early support for JDK 17 #26307
Assertion error details lost in rethrow in assertWithDiagnostics #26303
Update ReactiveAdapterRegistry to do classpath checks at class initialization #26295
Problem with @Schedule with Quartz features in CronExpression #26289
Make use of abortOnRequest in Jetty Reactive HttpClient #26287
Update OncePerRequestFilter.isAsyncDispatch to use HttpServletRequest.getDispatcherType() #26282
Introduce computeAttribute() in AttributeAccessor #26281
Translate PostgreSQL code 21000 (cardinality_violation) #26276
Consistent type resolution handling for NullBean #26271
Defensively handle loadClass null result in BeanUtils.findEditorByConvention (against misbehaving ClassLoader impl such as in the GWT JettyLauncher) #26252
Subscriber context not propagated to WebSocketHandler for Tomcat websockets #26210
Introduce ApplicationEvents abstraction to capture application events published during a test #25616
Spring AOP should not apply UndeclaredThrowableException to checked exceptions from Kotlin methods #23844

Cannot remove headers from httpHeaders.keySet() in WebFlux #26361
ClassCastException handling at SimpleApplicationEventMulticaster of payload items #26349
DefaultPartHttpMessageReader creates live resources that won't be shut down #26347
Sending empty Flux to RSocket channel causes DecodingException: JSON decoding error: No content to map due to end-of-input #26344
Fix implementation of isOpen() in ReactorNettyWebSocketSession #26341
Remove obsolete commandName attribute in spring-form.tld #26337
The response has a duplicate "Content-Length" header when get by range header #26330
@ExceptionHandler methods not invokable if matched on exception's cause level > 1 #26317
Switch to PathPatternParser for Spring MVC breaks welcome page auto configuration #26318
CronExpression cannot parse combination of step values #26313
Fix JdbcOperations.queryForObject/queryForList extensions #26312
ClassCastException during websocket upgrade for mutated request #26304
kotlinx.serialization should not be used for Java interfaces implemented by Java classes #26298
NettyHeadersAdapter.add() accepts @Nullable value but throws NullPointerException #26274
Lots of boundedElastic-evictor TIMED_WAITING threads related to form data requests #26263
No originalFilename in MockMultipartFile now leads to add it just as part #26261
UriComponentsBuilder fromUriString cannot parse File URI #26258

Slow prototype bean creation when migrating spring-boot 2.3.5 -> 2.4.1 #26369
Application built against Spring Framework 5.3 breaks deployment to Wildfly 9 #26355
Improve MockMvc samples in reference to show where static imports come from #26311
MultipartFile.getOriginalFilename() documentation should warn user not to use it as destination file name #26299
Spring data DomainClassConverter broken with Spring 5.3 in case of missing entity #26296
Document initialization and shutdown logging semantics for the TestContext framework #25385

We'd like to thank all the contributors who worked on this release!