Spring Boot - v3.1.6

:star: New Features

• Upgrade default CNB builders to Paketo Jammy #38485

:lady_beetle: Bug Fixes

• Annotation based ConditionalOnBean checks can cause early initialization of FactoryBeans #38473
• App fails to start with a NoSuchMethodError when using Flyway 10.0.0 #38267
• Resolution of productionRuntimeClasspath configuration may select the wrong variant and contain a dependency's source jar #38209
• App that depends on Tomcat and on Jetty's websocket-server module fails to start with IllegalStateException: WebSocketComponents has not been created #38181
• spring.webflux.multipart.max-disk-usage-per-part behaves incorrectly for values where the number of bytes overflows an int #38151
• Mail health indicator fails when host is not set in properties #38043
• Docker Compose integration does not work with 2.23.0 due to 'Cannot invoke "org.springframework.boot.docker.compose.core.DockerCliInspectResponse.hostConfig()" because "inspectResponse" is null' #37982
• Docker JSON parsing fails on certain locales #37648
• Testcontainers support for various containers does not work in a native-image #36606

:notebook_with_decorative_cover: Documentation

• Document supported SQL comment prefixes #38495
• Update access log pattern documentation to align with changes in Tomcat 10 #38424
• Add a Restarting a stopped or failed Job section to the batch howto #38340
• Fix link to Elasticsearch health indicator #38333
• Update Spring Framework documentation links #38288
• Code sample in "Developing Your First Spring Boot Application" does not work #38271
• Improve --help and documentation for "encodepassword -a/--algorithm" in the Spring Boot CLI #38248
• Add how-to documentation for test-only database migrations with Flyway/Liquibase #38230
• Document that PEM content can be used directly in application.yaml #38210
• Document that TomcatConnectorCustomizers are not applied to additional connectors #38197
• Document that application.* banner variables require a packaged jar or the use of Boot's launcher #38148
• Improve systemd configuration documentation #38116
• Clarify that @AutoConfigureWebTestClient binds WebTestClient to mock infrastructure #38113
• MyErrorWebExceptionHandler example in documentation isn't working #38110
• Document that properties that change an application's beans are fixed at build time #38107
• Add section on AspectJ support #38096
• Document that SerializationFeature.WRITE_DURATIONS_AS_TIMESTAMPS is disabled by default #38089
• Document that testing with ApplicationContextRunner in a native image is not supported #38081
• Spring Boot Actuator documentation misses management.endpoint.env.show-values property #38079
• Document how to downgrade dependencies to use embedded Jetty 11 #38076
• Update "Use Another Web Server" how-to to reflect Servlet 5.0 baseline #38074
• Update "Running Behind a Front-end Proxy Server" to include reactive and ForwardedHeaderTransformer #38071
• Document how to customize the basePackages that auto-configurations consider (for example Spring Data Repositories) #38053
• Reference documentation MyContainersConfiguration sample is missing @ServiceConnection #38046
• Clarifying documentation on including a top-level @TestConfiguration class in a test #38040
• Document ConfigurationPropertyCaching #38037
• Document server.servlet.encoding.* properties and server.servlet.encoding.mapping in particular #38034
• Document configuration for building images with Colima #38031
• Add a section on customizing embedded reactive servers #38027
• Improve documentation of classpath.idx file and its generation by the Maven and Gradle plugins #38024
• Document additional user configuration that's required after setting spring.hateoas.use-hal-as-default-json-media-type to false #38021
• Clarify that MVC components provided through WebMvcRegistrations are subject to subsequent processing and configuration by MVC #38018
• Add Embedded MongoDB to community starters #38015
• Document that spring-boot-starter-parent sets maven.compiler.release and how to unset it if needed #37993
• Improve health group membership validation error message to provide hint for property to disable validation #36489
• Explain how Docker Compose support works when services are already running #36483
• Outdated spring-boot-maven-plugin build-info documentation causing project builds to fail #36114
• When using Testcontainers at development time with @ServiceConnection on a @Bean method, describe when to use the name attribute and why #36071
• Make distinction between Testcontainers for integration tests and development more clear in documentation #35856
• Clarify documentation on importing Testcontainer declarations and using @ServiceConnection or @DynamicPropertySource #35629
• Improve documentation regarding tracing in tests #33975
• Document the accepted inputs when configuring tags on spring-boot:build-image and bootBuildImage #33088
• Document how to use cloudfoundry specific actuators with a custom base path for webflux applications #24991

:hammer: Dependency Upgrades

• Upgrade to ActiveMQ 5.18.3 #38452
• Upgrade to AspectJ 1.9.20.1 #38357
• Upgrade to Byte Buddy 1.14.10 #38453
• Upgrade to DB2 JDBC 11.5.9.0 #38454
• Upgrade to Dependency Management Plugin 1.1.4 #38345
• Upgrade to Dropwizard Metrics 4.2.22 #38455
• Upgrade to Glassfish JAXB 4.0.4 #38456
• Upgrade to Infinispan 14.0.21.Final #38457
• Upgrade to Jakarta Json 2.1.3 #38458
• Upgrade to Jakarta XML SOAP 3.0.1 #38459
• Upgrade to Jakarta XML WS 4.0.1 #38460
• Upgrade to Jetty 11.0.18 #38462
• Upgrade to Jetty Reactive HTTPClient 3.0.10 #38461
• Upgrade to Lettuce 6.2.7.RELEASE #38463
• Upgrade to Micrometer 1.11.6 #38297
• Upgrade to Micrometer Tracing 1.1.7 #38298
• Upgrade to Native Build Tools Plugin 0.9.28 #38464
• Upgrade to Netty 4.1.101.Final #38465
• Upgrade to Pooled JMS 3.1.5 #38466
• Upgrade to Reactor Bom 2022.0.13 #38299
• Upgrade to SAAJ Impl 3.0.3 #38467
• Upgrade to Spring Batch 5.0.4 #38493
• Upgrade to Spring Data Bom 2023.0.6 #38300
• Upgrade to Spring Framework 6.0.14 #38301
• Upgrade to Spring GraphQL 1.2.4 #38302
• Upgrade to Spring HATEOAS 2.1.3 #38375
• Upgrade to Spring Integration 6.1.5 #38303
• Upgrade to Spring Kafka 3.0.13 #38370
• Upgrade to Spring RESTDocs 3.0.1 #38468
• Upgrade to Spring WS 4.0.8 #38304
• Upgrade to Tomcat 10.1.16 #38469

:heart: Contributors

Thank you to all the contributors who worked on this release:

@GVictorG7, @PENEKhun, @audtjddld, @cachescrubber, @dreis2211, @eddumelendez, @izeye, @jonatan-ivanov, and @quaff