jm

jm / Java Manager

Java Manager.
Every platform.

That is the idea behind jm: a native Rust CLI for installing, switching, and pinning JDK versions across Linux, macOS, and Windows.

Get started View on GitHub
  • Linux
  • macOS
  • Windows
  • x86-64 + ARM64*
resolution trace ready

project input

.java-versiontemurin-21

active runtime

JDK 21JAVA_HOME set
$ jm current→ temurin-21.0.10+7

Install

Start with the binary.
Add the hook when you need it.

Linux / macOS
curl -fsSL https://raw.githubusercontent.com/Shinnosuke0722/jm/main/install.sh | sh

Windows and source installation →

Choose a path

Documentation shaped around the work.

Each guide starts with a developer task and stays explicit about platform behavior, precedence, and fallback rules.

WIN

JDK version manager for Windows

Install the x86-64 release, enable PowerShell, and troubleshoot PATH.

PATH

Switch Java versions per project

Resolve `.java-version`, `.sdkmanrc`, and the global default.

MOVE

SDKMAN alternative on Windows

Carry the Java entry forward without claiming full SDKMAN compatibility.

OpenJDK catalog

Ask for the build you need.

Search the provider catalog by distribution, Java version, operating system, and architecture.

Manage Temurin, Corretto, and GraalVM →
  • 01 Temurin
  • 02 Corretto
  • 03 Zulu
  • 04 Liberica
  • 05 Microsoft OpenJDK
  • 06 GraalVM CE

* Windows ARM64 does not currently receive a prebuilt release artifact. See the platform guide for source-build notes.