Java SE 17
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| Java SE 17 | |
|---|---|
| Name | Java SE 17 |
| Developer | Oracle Corporation |
| Released | September 14, 2021 |
| Latest release | 17 (LTS) |
| Programming language | Java |
| Platform | Java Platform, Standard Edition |
| License | Oracle Technology Network License Agreement, GNU General Public License |
Java SE 17 Java SE 17 is a long-term support release of the Java Platform, Standard Edition produced by Oracle Corporation and aligned with the Java Community Process cadence. It succeeded non-LTS releases and followed a sequence that included contributions from OpenJDK, Red Hat, Eclipse Foundation, and other stakeholders such as Amazon Web Services and Microsoft. The release served enterprise users relying on LTS stability and influenced adoption in products from IBM, Oracle Linux, Ubuntu, and cloud platforms like Google Cloud Platform.
Overview
Java SE 17 consolidated work from the OpenJDK Project and formalized features incubated in prior releases such as Java 9, Java 11, and Java 16. Major industry participants including Oracle Corporation, Red Hat, Azul Systems, Adoptium, and BellSoft contributed build and distribution efforts. The release aligned with support commitments similar to those seen in Java SE 11 and targeted server and desktop platforms used by organizations like Spotify, LinkedIn, Airbnb, and Netflix.
New Features and Enhancements
Java SE 17 included significant language and JVM-level changes drawn from proposals and JEPs developed in OpenJDK. Notable enhancements comprised finalized features such as sealed types influenced by research from Philip Wadler and Jep 409, record patterns and pattern matching advanced through work by contributors including Brian Goetz and Mark Reinhold. The release removed the experimental Nashorn engine and deprecated APIs in line with prior community decisions from JEP 372 and JEP 356. Performance and garbage collection improvements built on efforts from teams at Oracle Labs, Red Hat, and IBM Research and integrated collectors like ZGC and Shenandoah developed by AZUL Systems and Red Hat engineers. Security updates reflected coordination with standards bodies exemplified by Common Vulnerabilities and Exposures advisories and practices used by National Institute of Standards and Technology.
Platform and JDK Components
The Java SE 17 JDK bundled core components including the HotSpot JVM, the Java Flight Recorder, and the Java API set maintained within OpenJDK. Tooling interoperability relied on ecosystem projects such as Maven (software), Gradle, Eclipse IDE, IntelliJ IDEA, and NetBeans. Native-image and ahead-of-time compilation efforts intersected with projects like GraalVM and initiatives by Oracle Labs and Red Hat aimed at cloud-native deployments used by Spotify and Dropbox engineering teams. Packaging and distribution were provided by vendors including Oracle Corporation, Red Hat, Amazon Corretto, and AdoptOpenJDK contributors, enabling installation on platforms such as Microsoft Windows, Linux, and macOS.
Compatibility and Migration
Migration guidance for moving codebases referenced testing strategies used by enterprise teams at Netflix, Uber Technologies, and Salesforce and tooling such as JDeps and jdeprscan developed within OpenJDK and Oracle Corporation. Backward compatibility considerations echoed challenges faced during transitions like Java SE 8 to Java SE 11 and required attention to removed modules, deprecated APIs, and classpath/module-path behavior introduced with Project Jigsaw. Organizations including Spotify, LinkedIn, and Airbnb published case studies and best practices for upgrading large monoliths and microservice fleets to newer LTS releases.
Release History and Support
The release date followed Oracle’s six-month cadence formalized after discussions involving Oracle Corporation and the Java Community Process, with long-term support commitments resembling those for Java SE 11. Commercial support and extended maintenance were offered by vendors such as Oracle Corporation, Red Hat, IBM, Azul Systems, and Amazon Web Services for their enterprise customers. Community builds and downstream distributions were produced by projects like Eclipse Temurin and Adoptium, providing alternative update streams used by organizations including Canonical and Debian for their platform packages.
Reception and Adoption
Adoption among cloud providers, enterprises, and open source projects reflected a combination of technical evaluation and vendor support policies; major adopters included Amazon Web Services, Google Cloud Platform, Microsoft Azure, and Red Hat OpenShift. Analysts from firms such as Gartner and Forrester Research discussed the impact of LTS cadence on enterprise modernization timelines, while developer feedback came via channels like Stack Overflow, GitHub, and OpenJDK mailing lists. The release influenced language evolution discussions involving figures such as James Gosling, Brian Goetz, and Mark Reinhold, and shaped downstream tooling updates across ecosystems maintained by JetBrains, Eclipse Foundation, and Apache Software Foundation projects.