2024 Java Ecosystem Trends: Adoption, AI Integration, and Emerging Foundations

1 Key Points

New Relic 2024 Java ecosystem report shows Java 17, 11 and 8 usage at 35%, 33% and 29% respectively, with Java 17 still the most common JDK.

Java 21 adoption is only 1.4%, labeled a "fast adopter" but still a small share.

Java is shedding its "slow" and "out‑of‑date" image and showing strong innovation momentum.

The AI hype of early 2024 has cooled; AI remains a hot topic but is now viewed as a tool to be applied judiciously.

The Commonhaus Foundation, a new nonprofit, supports sustainable open‑source libraries and frameworks with succession planning and funding.

WebAssembly is finally gaining traction in the Java ecosystem, catching up with Go and Rust.

The report, compiled by the InfoQ Java editorial team, summarizes observations on core Java advances, new version adoption, and the evolution of frameworks such as Spring, Jakarta EE, and Helidon.

Its two main goals are to help technology leaders make medium‑ to long‑term investment decisions and to guide individual developers in prioritizing learning and skill development.

Since 2006 the team has tracked Java and JVM trends, applying Geoffrey Moore’s "Crossing the Chasm" model to identify early‑market innovators.

2 AI and Java

AI has undergone significant change over the past year and remains a hot topic. More tools and integrations now help Java developers work more efficiently.

While the early‑2024 AI frenzy has softened, discussion continues. Developers have shifted from "must switch to Python" to "Java can still be used for AI". Libraries such as LangChain4j dramatically improve Java's AI usability.

3 Commonhaus Foundation

The Commonhaus Foundation, introduced at Devnexus 2024, is a nonprofit focused on the sustainable development of open‑source libraries and frameworks. It provides succession planning and financial support for self‑governed projects.

Its mission is to empower a diverse community of developers, contributors, and users to create, maintain, and evolve open‑source projects for long‑term growth and stability.

★ Through collaborative governance, the foundation enables diverse developers and users to jointly create and maintain open‑source libraries and frameworks, ensuring their long‑term growth and stability.

Founders Erin Schnabel, Ken Finnigan, and Cesar Saavedra serve as chair, secretary, and finance lead respectively. Projects such as Hibernate and JBang have received foundation support, reinforcing confidence in their future.

4 Spring Framework 6 and Spring Boot 3

Adoption of Spring 6 and Spring Boot 3+ has risen sharply; most applications in the author's company have already migrated. Spring Boot and Quarkus appear to be the preferred frameworks for cloud‑native development.

Quarkus is gaining market share, gradually overtaking Spring Boot and solidifying its position as the second‑most popular micro‑service framework.

5 Java 17 and Later Versions

Recent Java improvements focus on modern application needs, especially performance in cloud environments and enhanced security. Start‑up time technologies such as Liberty’s InstantOn, CRIU, and CRaC make Java more suitable for cloud and serverless workloads.

Virtual threads represent a major breakthrough for concurrency, though they are still evolving and present performance challenges in some scenarios. Security‑focused updates include broader support for the FIPS 140‑3 standard.

Oracle’s free commercial use license for JDK 17 ended in September 2023, prompting many users to migrate to the Oracle Java SE Universal subscription or to OpenJDK‑based alternatives such as IBM Semeru. Over 70% of surveyed users are considering non‑Oracle Java runtimes.

Java 21’s rapid adoption is notable, yet most companies still run Java 17. Java 17 is becoming the new baseline, gradually replacing Java 8 as the minimum compatible version.

6 Jakarta EE

Significant effort is being made to adopt JDK 21 within Jakarta EE, raising expectations for Jakarta EE 11.

Jakarta EE 11 introduces 16 new specifications, removes references to the deprecated SecurityManager class, and adds support for Java Records.

The author plans to join the Jakarta EE Future Directions working group (established July 2024) to help shape priorities for the Jakarta EE and MicroProfile communities.

7 Voices from the Java Community

AI dominates many community discussions, with developers exploring how to leverage AI in Java, how much code AI can generate, and the potential of projects like Project Leyden.

Discussions now focus on practical tool usage rather than fearing AI replacement. OpenTelemetry continues to grow as the leading observability technology in Java.

Notable community challenges include virtual‑thread adoption, occasional dead‑lock issues (e.g., Netflix), and the “Billion‑Line Challenge” led by Gunnar Morling, where a team achieved sub‑2‑second processing of global weather‑station data.

8 New Exciting Developments

LangChain4j enables Java developers to use AI without learning Python, reducing integration effort with proprietary AI vendor APIs.

Platform engineering tools such as Backstage and Red Hat Developer Hub simplify application delivery and reduce cognitive load for Java teams.

The six‑month Java release cadence has stabilized, encouraging library and framework maintainers to adopt new features while preserving stability.

JSpecify 1.0.0, upcoming null‑pointer annotations, OpenTelemetry Profiling, and the withdrawal of JEP 465 (String Templates) are among the notable recent events.

9 Java Community Collaboration

The community is strengthening through collaborations like OpenTelemetry extensions, joint MicroProfile and Jakarta EE projects, which improve developer productivity and drive ecosystem growth.

10 Conclusion

This report serves as a starting point for discussions about the direction of the Java ecosystem; reader feedback is welcomed to help shape Java’s future.