Adoptium
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| Adoptium | |
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| Name | Adoptium |
| Type | Non-profit project |
| Focus | Open source Java runtime builds |
| Founded | 2020 |
| Location | Worldwide |
| Parent organization | Eclipse Foundation |
Adoptium Adoptium provides vendor-neutral, community-driven builds of the OpenJDK runtime and related toolchains for developers and enterprises. The project produces tested binaries and coordinates infrastructure for continuous integration and distribution across major platforms. Adoptium engages corporate contributors, standards bodies, and developer communities to ensure compatibility with existing Java ecosystems and cloud deployments.
Overview
Adoptium offers reproducible builds and quality assurance for OpenJDK sources, collaborating with projects and organizations such as the Eclipse Foundation, OpenJDK, Red Hat, IBM, Microsoft, Amazon Web Services, Google, Oracle Corporation, SAP SE, Alibaba Group, Azul Systems, Tencent, Fujitsu, BellSoft, AdoptOpenJDK (predecessor initiative), Corretto, Liberica JDK, Zulu (software), GraalVM, Spring Framework, Apache Tomcat, WildFly, Jetty, Netty, Eclipse Jakarta EE, Maven (software), Gradle, IntelliJ IDEA, Eclipse IDE, NetBeans, Visual Studio Code, Jenkins (software), Travis CI, CircleCI, GitHub, GitLab, Bitbucket, Docker (software), Kubernetes, OpenShift, Cloud Foundry, Amazon Elastic Kubernetes Service, Azure Kubernetes Service, Google Kubernetes Engine, Red Hat OpenShift, Heroku, VMware Tanzu.
History and Organization
Adoptium emerged after the migration of the AdoptOpenJDK community into a vendor-neutral governance model under the Eclipse Foundation. Key participants included former AdoptOpenJDK maintainers and corporate contributors such as IBM, Red Hat, Microsoft, Amazon Web Services, Google, and Azul Systems. The initiative aligned with standards and test harnesses from OpenJDK and integrated testing suites used by projects like Apache HTTP Server, Apache Kafka, Apache Cassandra, and Elasticsearch. Governance integrates technical committees and working groups, with stakeholders drawn from Linux Foundation-adjacent ecosystems, vendors supporting OpenJDK, and cloud providers coordinating distribution.
Releases and Build Infrastructure
Adoptium coordinates binary releases, coordinating CI and QA across build nodes contributed by vendors and institutions such as Eclipse Foundation, IBM, Red Hat, Microsoft Azure, Amazon Web Services, Google Cloud Platform, Alibaba Cloud, Huawei, Fujitsu, ARM Limited, Intel, AMD, Oracle Corporation, Canonical (company), SUSE, Debian, Ubuntu (operating system), Fedora Project, openSUSE, CentOS communities. Build pipelines use tooling and services like Jenkins (software), GitHub Actions, Gradle, Maven (software), Make (software), CMake, Ninja (software), LLVM, GCC, OpenSSL, and test suites originating from Test262, JUnit, TestNG, JTReg, and IcedTea. Release artifacts are packaged for container platforms such as Docker (software) and orchestration systems including Kubernetes and distributed via registries used by Quay.io, Docker Hub, and cloud marketplaces operated by Amazon Web Services, Microsoft Azure, and Google Cloud Platform.
Platforms and Compatibility
Binary builds are produced for architectures and operating systems supported by contributors and partners, including x86-64, ARM architecture, AArch64, POWER ISA, and s390x platforms, provided on operating systems such as Linux (kernel), Windows, macOS, and distributions like Ubuntu (operating system), Debian, Fedora Project, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Alpine Linux. Compatibility testing references specifications and TCKs from OpenJDK, integrates with frameworks like Spring Framework, Hibernate (framework), Apache Tomcat, Eclipse Jakarta EE, and cloud-native stacks including Spring Boot, Quarkus, Micronaut, Helidon (framework), and runtime environments such as GraalVM for native-image interoperability.
Governance and Community
Adoptium governance is exercised through working groups and steering committees hosted by the Eclipse Foundation, with participation from vendors and community contributors including IBM, Red Hat, Microsoft, Amazon Web Services, Google, Azul Systems, BellSoft, Fujitsu, Huawei, Canonical (company), SUSE, and major downstream projects such as Apache Software Foundation, Linux Foundation, Cloud Native Computing Foundation, Open Container Initiative, Eclipse Jakarta EE, Cloud Foundry Foundation, and The Apache Software Foundation. Community activities take place on platforms like GitHub, GitLab, mailing lists, and issue trackers, and coordinate with standards efforts undertaken in OpenJDK and related JEPs reviewed by groups that include representatives from Oracle Corporation and major cloud providers.
Adoption and Use Cases
Adoptium binaries are used across enterprise software stacks, cloud-native applications, and embedded systems. Notable adopters and integrations include Netflix, LinkedIn, Twitter, Airbnb, Uber Technologies, Spotify, Pinterest, Salesforce, Atlassian, Red Hat, IBM, SAP SE, Oracle Corporation, Google, Amazon Web Services, Microsoft, Alibaba Group, Tencent, Capital One, Goldman Sachs, Barclays, Deutsche Bank, HSBC, and government agencies that deploy Java-based services. Use cases range from backend web servers running Apache Tomcat and Jetty to data processing with Apache Kafka, Apache Flink, Hadoop, and microservices orchestrated by Kubernetes and deployed with CI/CD tools like Jenkins (software), GitLab CI, and CircleCI.