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AdoptOpenJDK TSC and Knowledge Base

Contribution

We welcome any contributions big or small from experienced OpenJDK folks to those who are brand new to software projects!

To start, make sure you sign up to the AdoptOpenJDK Slack, say hello and please read the Contribution Guide.

Knowledge Base

Overview

The AdoptOpenJDK Build Farm is three things:

  1. A Repository of professionally built, tested and supported OpenJDK binaries - A place for end users to download professionally built and tested OpenJDK binaries, see Support for our full support details.
  2. A Community of builders - A place where those who build and test OpenJDK come together to share common code and practices.
  3. Infrastructure as Code - To host, build, test and deploy variants of OpenJDK (aka Java)! This infrastructure as code is based around ansible and is designed to be usable by any person or organisation wishing to build a derivative build farm or parts of one.

See https://www.adoptopenjdk.net for in depth details of the motivation, who's involved, the sponsors and much more!

Dependent Projects

AdoptOpenJDK is a vast undertaking and has numerous GitHub repositories where the work gets done.

Core Projects

These projects are located in the following repositories in rough order of importance with regards to understanding how the build farm is put together and works. Each repository maintains its own set of issues, pull requests and documentation (edit the Image Source and export to make changes.)

Core Projects

Support and Admin Projects

These projects are critical to maintaining security, supporting our user ecosystem, and for the internal running of the project (edit the Image Source at Google and export to make changes.)

Extra Projects

AdoptOpenJDK Source Repositories

The following diagram lists the source repositories for AdoptOpenJDK (edit the Image Source at Google and export to make changes.)

Source Repositories

When an OpenJDK variant is mercurial based or AdoptOpenJDK needs to maintain its own patches then we have a clone of that source:

AdoptOpenJDK binary repositories

The following diagram lists the binary repositories for AdoptOpenJDK (edit the Image Source at Google and export to make changes.). These GitHub Repositories are where builds that pass the pipeline are published to. The API (and subsequently) website poll these repositories to make binaries available.

Distribution Repositories

  • openjdk8-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 8 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk9-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 9 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk10-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 10 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk11-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 11 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk12-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 12 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk13-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 13 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk14-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 14 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk15-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 15 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk16-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK 16 (HotSpot VM and Eclipse OpenJ9 VM).
  • openjdk-binaries - AdoptOpenJDK nightly and release binaries for AdoptOpenJDK (Latest) (HotSpot VM and Eclipse OpenJ9 VM).

Upstream OpenJDK binary repositories

These GitHub Repositories are where builds from the OpenjDK update projects (led by Red Hat) are published to. The API (and subsequently) website poll these repositories to make binaries available.

Dragonwell OpenJDK binary repositories

These GitHub Repositories are where builds from Alibaba's Dragonwell distribution are published to. The API (and subsequently) website poll these repositories to make binaries available.

Private repositories

Due to security or licensing concerns the following repositories are private. Please raise an issue on the Infrastructure Project if you think you need access.

Java Mission Control Support

We support the building of Java Mission Control (JMC).

  • openjdk-jmc-overrides - Contains the AdoptOpenJDK specific source code overrides and build pipeline script for the Java Mission Control project.

Workflow

The following diagram is a very simplified view of how a build progresses through a pipeline (edit the Image Source at Google and export to make changes.)

Build Variant Workflow

NOTE: Please ensure you read the documentation below and in the appropriate repositories to get a full understanding

The workflow to source, build, test and deploy variants of OpenJDK is as follows.

1. Get the OpenJDK variant source code

We source variants and versions of OpenJDK from a variety of source repositories. Add a new build variant describes the typical work flow of getting a new variant up and running. Please also see Platform Costs as variants with high impact on the build farm will require funding.

  1. OpenJDK HotSpot Mirrors - GitHub mirrors of OpenJDK forests are created in the AdoptOpenJDK org. For example: openjdk-jdk8u, openjdk-jdk11u. Please open an openjdk-TSC issue if you'd like a new variant added.
    1. git-hg Jobs Update Mirrors - Our Jenkins CI runs git-hg jobs to regularly update those various clones of OpenJDK forests. See their job configurations in Jenkins and the openjdk-build repo for details.
  2. OpenJDK OpenJ9 - Eclipse OpenJ9 source is built from IBM Runtimes, e.g. openj9-openjdk-jdk8, openj9-openjdk-jdk9
  3. OpenJDK SAP - SAP source is built from e.g. openjdk-sap-jdk10
  4. OpenJDK OpenJFX - GitHub mirror of OpenJDK JFX lives at AdoptOpenJDK - openjdk-jfx

2. Choose the branches to build from

Each OpenJDK variant has a canonical branch that is built:

  1. OpenJDK HotSpot - The dev branch of AdoptOpenJDK contains extra patches over and above master (which is the exact clone of the OpenJDK forest). dev is used to build AdoptOpenJDK binaries
  2. OpenJDK OpenJ9 - Branches such as openj9-0.8 are used to build OpenJ9 Releases for Java 8 and openj9 is used to build OpenJ9 for Java 9.
  3. OpenJDK SAP - The sapmachine branch is used to build SAP for Java 10
  4. OpenJDK OpenJFX - TODO

3. Build, Test and Deploy Pipeline

Our Jenkins Pipelines (source code) build binaries and then push them through a test pipeline (NOTE Test pipeline is skipped for certain unstable combinations).

NOTE: Once the Test jobs have stabilised, the pipeline described below will change so that only tested binaries are released to Nightly and Release repositories for consumption by the Website and/Or API. See The Quality Bar Discussion for details.

3.1 Build

Builds are run on the Supported Platforms. The Jenkins leader sends the build jobs to the Jenkins followers based on a tagging system configured in the Jenkins jobs, e.g. centos6&&x64&&build. See openjdk-build and openjdk-infrastructure for details.

3.2 Test

Note that other OpenJDK binaries (such as the openjdk8-upstream-binaries and openjdk11-upstream-binaries) can be put through pipelines entering at this Test phase.

Tests are run on the Supported Test Platforms. The Jenkins leader sends the test jobs to the Jenkins followers based on a similar tagging system to build. See openjdk-tests and openjdk-infrastructure for details.

  1. Builds are tested - The tests in openjdk-tests are executed and tests results are posted to TODO. Tests include, but are not limited to the jtreg tests that come with OpenJDK itself.
  2. Builds are system tested - System Tests from openjdk-systemtests are executed and test results are posted to TODO
  3. Builds are external tested - External Tests are executed and test results are posted to TODO
  4. Builds are performance tested - Performance Tests from bumblebench are executed and test results are posted to TODO

3.3 Sign Binaries

TODO - Binaries are signed.

3.4 Deploy Binaries

TODO: We're missing the SAP and OpenJFK deployments here.

NOTE Future versions of this workflow will show the status of testing and meta data about how the binary was built.

  1. Binaries are deployed - Using the OpenJDK Release Tool (from the openjdk-website-backend project) in order to:

    1. deploy them to the various binary repositories: (openjdk8-binaries, openjdk9-binaries, openjdk10-binaries, openjdk11-binaries, openjdk12-binaries, openjdk13-binaries, openjdk14-binaries, openjdk15-binaries, openjdk-binaries).
  2. Binaries made available - Binaries are made available for download via the website and api gateway. See openjdk-website, openjdk-api and openjdk-api-java-client projects for more details. We also make the builds available through DockerHub and our own unofficial docker repositories, see openjdk-docker for details.

The TSC

List of TSC Responsibilities

The TSC exercises autonomy in setting up and maintaining procedures, policies, and management and administrative structures as it deems appropriate for the maintenance and operation of these projects and resources.

Included in the responsibilities of the TSC are:

  • Managing the tangible assets of the projects such as machines, code, etc, and the intangible assets such as policies, brand, etc for the listed projects and resources
  • Meeting monthly to discuss progress and other TSC issues
  • Setting and maintaining standards covering contributions of code, documentation and other materials including infrastructure such as build machines
  • Facilitating code and binary releases: types, schedules, frequency, delivery mechanisms
  • Acquiring resources and ensuring they are maintained in a functional and secure manner for the benefit of the project.
  • Resolving overall technical direction for the AdoptOpenJDK organization, including high-level goals and low-level specifics regarding features and functionality
  • Maintaining a relationship with the AdoptOpenJDK security group for dealing with vulnerabilities in an appropriate manner
  • Setting and maintaining appropriate standards for community discourse via the various mediums under TSC control, including but not limited to the Website, Slack, GitHub comments

TSC Members

TSC members can nominate new members at any time. Candidates for membership tend to be people who have a competency for community management and high tolerance and patience for process minutiae as the TSC delegates most of its responsibilities to other teams.

Current Members

Director Chair
karianna avatar
karianna - Martijn Verburg (Microsoft)
gdams avatar
gdams - George Adams (Microsoft)
Members

aahlenst - Andreas Ahlenstorf (ZHAW)
gdams avatar
gdams - George Adams (Microsoft)
hendrikebbers avatar
hendrikebbers - Hendrik Ebbers (Karakun AG)
jerboaa avatar
jerboaa - Severin Gehwolf (Red Hat)
johnoliver avatar
johnoliver - John Oliver (Microsoft)
karianna avatar
karianna - Martijn Verburg (Microsoft)
smlambert avatar
smlambert - Shelley Lambert (Red Hat)
sxa avatar
sxa - Stewart X Addison (Red Hat)
tellison avatar
tellison - Tim Ellison (Red Hat)

Rules for TSC Membership

  1. No single organization can occupy more than half the seats on the TSC.
  2. The appointing of TSC members occurs on an annual basis and is based on a do-ocracy.
  3. Candidates with the intention of becoming a member of the TSC should briefly outline where they'd like to see the project going - all in a transparent manner that is available to the public.

Election Process

Each community member has a Single Transferable Vote (STV). There are tools to manage STV voting.

Thanks!
The AdoptOpenJDK Community.

About

The AdoptOpenJDK Technical Steering Committee - Also acts as the knowledge portal for the Adopt OpenJDK GitHub projects

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