Spring Framework v5.3.19 releases

The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications – on any kind of deployment platform.

A key element of Spring is infrastructural support at the application level: Spring focuses on the “plumbing” of enterprise applications so that teams can focus on application-level business logic, without unnecessary ties to specific deployment environments.Spring Framework



  • Core technologies: dependency injection, events, resources, i18n, validation, data binding, type conversion, SpEL, AOP.
  • Testing: mock objects, TestContext framework, Spring MVC Test, WebTestClient.
  • Data Access: transactions, DAO support, JDBC, ORM, Marshalling XML.
  • Spring MVC and Spring WebFlux web frameworks.
  • Integration: remoting, JMS, JCA, JMX, email, tasks, scheduling, cache.
  • Languages: Kotlin, Groovy, dynamic languages.



⭐ New Features

  • Remove DNS lookups during websocket connection initiation #28280
  • Add application/graphql+json Media type and MIME type constants #28271
  • Fix debug log for no matching acceptableTypes #28116
  • Provide support for post-processing a LocalValidatorFactoryBean’s validator Configuration without requiring sub-classing #27956

🐞 Bug Fixes

  • Improve documentation and matching algorithm in data binders #28333
  • NotWritablePropertyException when attempting to declaratively configure ClassLoader properties #28269
  • BeanPropertyRowMapper’s support for direct column name matches is missing in DataClassRowMapper #28243
  • AbstractListenerReadPublisher does not call ServletOutputStream::isReady() when reading chunked data across network packets #28241
  • ResponseEntity objects are accumulated in ConcurrentReferenceHashMap #28232
  • Lambda proxy generation fix causes BeanNotOfRequiredTypeException #28209
  • CodeGenerationException thrown when using AnnotationMBeanExporter on JDK 17 #28138

🔨 Dependency Upgrades

  • Upgrade to Reactor 2020.0.18 #28329