Update Java-related toolchains to enable the toolchain transition.

This means that Java toolchains will no longer always be in the host configuration, but can use target and exec transitions.

See https://github.com/bazelbuild/proposals/blob/master/designs/2019-02-12-toolchain-transitions.md for details about the new capabilities, and https://github.com/bazelbuild/proposals/blob/master/designs/2020-02-07-toolchain-transition-migration.md for details about the migration.

Note that the `incompatible_use_toolchain_transition` is intended to be removed once the migration has completed. A similar change will be sent at that point to remove it.

TESTED: Downstream Bazel tests: https://buildkite.com/bazel/bazel-at-head-plus-downstream/builds/1951 (rules_haskell failed in the nightly, rules_foreign_cc is broken due to a recent commit, neither is related)
PiperOrigin-RevId: 362921879
2 files changed
tree: fb0ea90b123781b0bcead6b164640b138bbc1252
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEBASE.md
  15. CODEOWNERS
  16. combine_distfiles.py
  17. combine_distfiles_to_tar.sh
  18. compile.sh
  19. CONTRIBUTING.md
  20. CONTRIBUTORS
  21. distdir.bzl
  22. distdir_deps.bzl
  23. ISSUE_TEMPLATE.md
  24. LICENSE
  25. README.md
  26. WORKSPACE
README.md

Bazel

{Fast, Correct} - Choose two

Build and test software of any size, quickly and reliably.

  • Speed up your builds and tests: Bazel rebuilds only what is necessary. With advanced local and distributed caching, optimized dependency analysis and parallel execution, you get fast and incremental builds.

  • One tool, multiple languages: Build and test Java, C++, Android, iOS, Go, and a wide variety of other language platforms. Bazel runs on Windows, macOS, and Linux.

  • Scalable: Bazel helps you scale your organization, codebase, and continuous integration solution. It handles codebases of any size, in multiple repositories or a huge monorepo.

  • Extensible to your needs: Easily add support for new languages and platforms with Bazel's familiar extension language. Share and re-use language rules written by the growing Bazel community.

Getting Started

Documentation

Contributing to Bazel

See CONTRIBUTING.md

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