What’s New in Spring Framework 5.3.5? Features, Bug Fixes & JDK 16 Support

Yesterday we introduced the latest Spring Boot 2.4.4 and Spring Cloud 2020.0.2 releases; you can read them here: Spring Boot 2.4.4, Spring Cloud 2020.0.2 released .

Today we present the newest Spring Framework 5.3.5, which adds support for JDK 16.

Spring Framework is a layered application framework that provides a comprehensive programming and configuration model for modern Java‑based enterprise applications on any deployment platform.

New Features

Expose @JmsListener endpoint id to the listener container for transaction definition names #26683

Add R2DBC support for Oracle bind marker scheme #26680

Add HTTP request cookies to WebSocket handshake #26674

MockMvc alwaysDo equivalent to WebTestClient #26662

Ensure ClientResponse logPrefix includes available connection Id #26656

Use Reactor Netty API for request id #26649

WriteResultPublisher does not propagate cancel signal #26642

Cannot remove @EventListener annotated bean from ApplicationEventMulticaster #26638

Support global @MessageExceptionHandler via @ControllerAdvice in RSocket #26636

Support UTF‑16 and UTF‑32 in Jackson HttpMessageConverters #26627

Add missing nullable annotation to ResponseEntity.ok method #26613

OncePerRequestFilter.isAsyncDispatch may return NPE #26602

Allow creation of AOP proxies with raw class loader #26601

allowedOriginPatterns missing option in WebSocketHandlerRegistration #26593

HandlerMapping for WebSocket‑only requests #26565

Support cookies with Expires but without Max‑Age in MockHttpServletResponse #26558

Allow independent logging of REST endpoint mappings #26539

Introduce “idleReceivesPerTaskLimit” in DefaultMessageListenerContainer #26442

Improve handling of malformed Accept header in @ExceptionHandler methods #24539

Support fallback pattern analysis in @DateTimeFormat #20292

Bug Fixes

StatusAssertion value method fails with custom status codes #26658

Jaxb2XmlEncoder supports custom XML media types #26655

Local @CrossOrigin maxAge overrides global value #26619

Multipart boundaries must be quoted #26616

ServerHttpRequest content type cannot mutate #26615

Correct auto‑grow array element setting #26600

Cron expression behavior change for SUN‑based day-of-week range #26598

Fix handling of non‑existent file “file:” paths on Windows #26575

ClassLoader.getResource may throw IllegalArgumentException #26574

ResourceUrlProvider detects incorrect handler mapping sets #26561

Spring test dependency on Servlet 4.0 makes runtime use of Servlet 3.1 difficult #26555

WebFlux on Tomcat cannot complete response write #26434

LoadTimeWeaver no longer weaves @Component‑annotated bean classes #26199

Documentation

Fix public file upload URL in reference guide #26678

Update references to deprecated CronSequenceGenerator #26651

Update ref docs about deprecated @Required annotation #26578

Fix generated output directory in ref docs #26556

Document all supported SpringProperties keys in reference manual #26554

Dependency Upgrades

Upgrade to Reactor 2020.0.5 #26650

Full release details are available at https://github.com/spring-projects/spring-framework/releases/tag/v5.3.5 .