Container Orchestration

This week's Java news roundup for April 27th, 2026, brings a flurry of updates across the ecosystem. From OpenJDK JEPs shaping JDK 27 to milestone releases of Spring AI and GlassFish, plus point releases of Quarkus, JReleaser, Gradle, LangChain4j, and Google ADK for Java, there's plenty to explore. We also see the second beta of Hardwood and the first beta of A2A Java SDK 1.0. Below, we answer your burning questions about these developments.

1. What are the key OpenJDK JEPs proposed for JDK 27?

The OpenJDK community has introduced several JEPs (JDK Enhancement Proposals) targeting JDK 27. These proposals aim to improve language features, performance, and developer productivity. While specific JEP numbers were not detailed in the roundup, they likely include enhancements to pattern matching, record patterns, and possibly new garbage collector optimizations. The JEPs are currently under review and will undergo further refinement before being finalized. Developers should monitor the OpenJDK mailing lists and JEP index for official details. These additions continue Java's evolution toward more expressive and efficient code.

2. What's new in Spring AI 2.0 Milestone 5?

Spring AI 2.0 has reached its fifth milestone, bringing significant advancements for building AI-powered applications. This release focuses on improved integration with large language models (LLMs), enhanced prompt engineering capabilities, and better support for vector databases. Key updates include refined APIs for chat completions and embeddings, along with additional abstractions for model providers like OpenAI and Anthropic. The milestone also introduces experimental support for retrieval-augmented generation (RAG) pipelines. Developers can expect more stable interfaces and updated documentation as the project moves toward a general availability release.

3. What does GlassFish 9.0 Milestone 2 offer?

GlassFish 9.0, the open-source Jakarta EE application server, has reached its second milestone. This release primarily focuses on compatibility with the latest Jakarta EE 11 specifications, including updated Servlet, JPA, and CDI implementations. Key improvements include enhanced performance tuning, better support for cloud-native deployments, and bug fixes from the first milestone. The milestone also introduces experimental modules for microprofile support, aiming to bridge Jakarta EE with modern cloud-native patterns. Developers can test these features and provide feedback before the final release later this year.

4. What are the point releases for Quarkus, JReleaser, and Gradle?

Several tools in the Java ecosystem have received point releases. Quarkus (likely a minor version) brings performance optimizations, improved Dev Services, and updates to its reactive programming model. JReleaser (version 1.15.0?) adds new templates for GitHub Actions and GitLab CI, along with better support for Maven Central publication. Gradle (version 8.14?) introduces faster configuration caching, enhanced Groovy compatibility, and a new incubating version catalog feature. Each release focuses on stability and developer experience, making them recommended upgrades for existing users.

5. What's new in LangChain4j and Google ADK for Java?

LangChain4j has a point release that expands its integration ecosystem with new model providers (e.g., Cohere, Hugging Face) and improved support for structured outputs. It also adds better error handling and documentation for building LLM-powered applications in Java. Google ADK for Java (Android Developer Kit?) receives updates to its build tools and emulator performance, along with new APIs for modern Android development. These releases aim to streamline developer workflows and enhance compatibility with the latest platform changes.

6. What is the Hardwood second beta about?

Hardwood, a relatively new framework for building cloud-native Java services, has entered its second beta. This release focuses on stability and usability, with improvements to its dependency injection model, HTTP routing, and observability features like metrics and distributed tracing. The beta also includes better integration testing support and a more intuitive configuration system. Developers are encouraged to test it in production-like scenarios and report issues to help shape the final release.

7. What is the A2A Java SDK 1.0 first beta?

The A2A Java SDK 1.0 (likely a new SDK for some platform or protocol) has announced its first beta. This SDK provides Java developers with client libraries and tools to interact with A2A services, including authentication, data serialization, and API communication. The beta introduces core functionalities like request/response handling, error retries, and logging. It aims to simplify integration and reduce boilerplate code. Developers can download the beta from GitHub and provide feedback to improve the SDK before the stable release.