openjdk@21

brew install openjdk@21 v21.0.11 GPL-2.0-only WITH Classpath-exception-2.0 keg-only

Java 21 development kit (JDK) with compiler, runtime, and standard library.

Why you might care

Use this if you need Java 21 specifically alongside other Java versions, or if you want a free, open-source JDK without proprietary licensing. It's keg-only, so multiple Java versions can coexist. Includes javac compiler, java runtime, and build tools like jar and jshell.

Alternatives

openjdk adoptopenjdk temurin graalvm oraclejdk

27.0k

30-day installs · #197

86.5k

90-day · #200

282.3k

365-day · #226

Runtime dependencies

freetype giflib harfbuzz jpeg-turbo libpng little-cms2

Build dependencies

autoconf pkgconf

Caveats

For the system Java wrappers to find this JDK, symlink it with
  sudo ln -sfn $HOMEBREW_PREFIX/opt/openjdk@21/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-21.jdk

Keg-only reason

:versioned_formula

Blurb generated by claude-haiku-4-5 on today.

Raw metadata

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