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Shellbay

Runtimes · about 3 min · 3 steps

Java 21 (OpenJDK)

Installs the OpenJDK 21 long-term-support release, headless, for running Java services.

Runs on

  • Debian / Ubuntu: supported
  • RHEL / Fedora: supported
  • Alpine: supported

What it changes on your server

  • Installs OpenJDK 21 from your distribution where it has it.
  • On Debian 12 and Fedora, adds the Eclipse Temurin repository (signing key checked) and installs Temurin 21.

What Shellbay asks you

Nothing. This workflow needs no details from you.

Steps

  1. Install download tools
  2. Install Java 21
  3. Check the Java version

Shellbay checks the server before the first step, and stops at the first step that fails.

When it's done

  • Java 21 is installed. Check with java -version.