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InfoQ Homepage News Java News Roundup: Sequenced Collections, Spring 6.0-RC1, Apache Tomcat, Reactor 2022.0-RC1

Java News Roundup: Sequenced Collections, Spring 6.0-RC1, Apache Tomcat, Reactor 2022.0-RC1

This week's Java roundup for October 10th, 2022, features news from OpenJDK, JDK 20, Spring Framework 6.0-RC1, Spring Batch 5.0-M8, Quarkus 2.13.2, Helidon 3.0.2 and 2.5.4, Project Reactor 2022.0-RC1, Piranha 22.10.0, JHipster Lite 0.18.0, Apache Tomcat 8.5.83 and 10.1.1 Apache James 3.7.2 and Devoxx Belgium.


JEP 431, Sequenced Collections, was promoted from its Draft 8280836 to Candidate status this past week. This JEP proposes to introduce "a new family of interfaces that represent the concept of a collection whose elements are arranged in a well-defined sequence or ordering, as a structural property of the collection." Motivation was due to a lack of a well-defined ordering and uniform set of operations within the Collections Framework.

JDK 20

Build 19 of the JDK 20 early-access builds was also made available this past week, featuring updates from Build 18 that include fixes to various issues. Further details on this build may be found in the release notes.

For JDK 20, developers are encouraged to report bugs via the Java Bug Database.

Spring Framework

On the road to Spring Framework 6.0, the first release candidate was made available this past week which ships with baselines to JDK 17+ and Jakarta EE 9+ and a broader revision of the Spring infrastructure. This release candidate completes the foundation for Ahead-of-Time (AOT) transformations and corresponding AOT processing support for Spring application contexts. Other new features and refinements include: an HTTP interface client based on @HttpExchange service interfaces; support for RFC 7807 problem details; and Micrometer-based observability for HTTP clients. More details on this release may be found in the what's new page.

Similarly, on the road to Spring Batch 5.0, the eighth milestone release features: an updated DefaultExecutionContextSerializer class to serialize/deserialize context to/from Base64; and an enhanced SystemCommandTasklet class with a new strategy interface, CommandRunner, to decouple the command execution from the tasklet execution. Further details on this release may be found in the release notes.


Red Hat has released Quarkus 2.13.2 that delivers fixes such as: prevent a possible null pointer exception while building a violations report; ensure all CLI commands work with Windows Powershell; and introduce a version of the @OidcClientFilter annotation to enhance RestClient Reactive to support registering providers via custom annotations. More details on this release may be found in the changelog.


Oracle has released Helidon 3.0.2 that ships with updates to Helidon components such as WebServer, WebClient, DBClient and CORS. There were also dependency upgrades to Hibernate 6.1.4.Final, EclipseLink 3.0.3, GraphQL Java 17.4, SnakeYAML 1.32, Reactive Streams 1.0.4 and Oracle Cloud Infrastructure 2.45.0.

Similarly, in the 2.5 release train, Helidon 2.5.4 was made available to deliver updates to the Helidon components and dependency upgrades to Hibernate 5.6.11.Final, Hibernate Validator 6.2.5, EclipseLink 2.7.11, GraphQL Java 17.4, SnakeYAML 1.32, and Reactive Streams 1.0.4.

Project Reactor

On the road to Project Reactor 2022.0.0, the first release candidate features dependency upgrades to the reactor-core 3.5.0-RC1, reactor-pool 1.0.0-RC1, reactor-netty 1.1.0-RC1, reactor-netty5 2.0.0-M2 and reactor-kafka 1.3.13 artifacts. There was also a realignment to RC1 with the reactor-addons 3.5.0-RC1 and reactor-kotlin-extensions 1.2.0-RC1 artifacts that remain unchanged.


Piranha 22.10.0 has been released. Dubbed the "Stabilization is ongoing" edition for October 2022, this new release includes deprecations to: Piranha Micro, MicroExtension, StandardExtension and the old server distribution. There was also a dependency upgrade to Weld 5.1.0, the compatible implementation to the Jakarta Contexts and Dependency Injection specification. Further details on this release may be found in their documentation and issue tracker.


JHipster Lite 0.18.0 has been released that ships with bug fixes, enhancements and dependency upgrades that include modules: consul 1.13.2, vite 3.1.8, prettier-plugin-svelte 2.8.0, docker/build-push-action 3.2.0 and vue-tsc 1.0.7.

Apache Software Foundation

Apache Tomcat 10.1.1 has been released that ships with an updated Eclipse JDT compiler 4.23 and fixes for: a refactoring regression that broke JSP includes; and unexpected timeouts that may appear as client disconnects when using HTTP/2 and NIO2. More details on this release may be found in the changelog.

Apache Tomcat 8.5.83 has also been released featuring: support for authenticating WebSocket clients with an HTTP forward proxy when establishing a connection to a WebSocket endpoint; various fixes for edge case bugs in expression language processing; and an enforcement of RFC 7230, Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing, such that a request with a malformed content-length header should always be rejected with a 400 response. Further details on this release may be found in the changelog.

Apache James 3.7.2 has been released that delivers bug fixes and dependency upgrades to Scala 2.13.9, slf4j 2.0.1, Netty 4.1.81.Final, Logback 1.4.0 and jsoup 1.15.3. More details on this release may be found in the release notes.

Devoxx Belgium

Devoxx Belgium 2022 was held at the Kinepolis Antwerp this past week featuring many speakers from the Java community who presented on topics such as Java, Architecture, Server-Side Java, Security and Development Practices.

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