Installation

Prebuilt releases are available for Windows, macOS, and Linux on amd64 and arm64.

macOS or Linux

curl -fsSL https://github.com/codeboyzhou/javaup/releases/latest/download/install.sh | sh

The installer detects the platform, verifies the release checksum, installs jup under ~/.javaup/bin, and updates the relevant shell profile.

Windows

Run in PowerShell 5.1 or later:

irm https://github.com/codeboyzhou/javaup/releases/latest/download/install.ps1 | iex

The installer verifies the release checksum, installs jup.exe under %USERPROFILE%\.javaup\bin, and adds that directory to the user PATH. Restart terminals and IDEs that were open during installation so they inherit the new PATH.

Other Installation Methods

Install with the Go version declared in go.mod, or newer:

go install github.com/codeboyzhou/javaup/cmd/jup@latest

Or build from source:

git clone https://github.com/codeboyzhou/javaup.git
cd javaup
go run build.go

The binary is written to dist/jup.exe on Windows or dist/jup on macOS and Linux. Archives, checksums, and installers can also be inspected on GitHub Releases.

Installer Options

Variable	Purpose
JAVAUP_VERSION	Install a specific release, such as v0.3.0
JAVAUP_HOME	Use a custom absolute installation and configuration directory
JAVAUP_NO_MODIFY_PATH	Install without updating the shell profile or user PATH

Pin a version

Set JAVAUP_VERSION to install a specific release instead of the latest one:

curl -fsSL https://github.com/codeboyzhou/javaup/releases/latest/download/install.sh | JAVAUP_VERSION=v0.3.0 sh

$env:JAVAUP_VERSION = 'v0.3.0'
irm https://github.com/codeboyzhou/javaup/releases/latest/download/install.ps1 | iex

Install into a custom directory

Set JAVAUP_HOME to an absolute path to keep the installation and configuration elsewhere (for example /opt/javaup or D:\javaup):

curl -fsSL https://github.com/codeboyzhou/javaup/releases/latest/download/install.sh | JAVAUP_HOME=/opt/javaup sh

$env:JAVAUP_HOME = 'D:\javaup'
irm https://github.com/codeboyzhou/javaup/releases/latest/download/install.ps1 | iex

Skip PATH changes

Set JAVAUP_NO_MODIFY_PATH to install without editing the shell profile or user PATH. Add the bin directory to PATH yourself afterwards:

curl -fsSL https://github.com/codeboyzhou/javaup/releases/latest/download/install.sh | JAVAUP_NO_MODIFY_PATH=1 sh

$env:JAVAUP_NO_MODIFY_PATH = '1'
irm https://github.com/codeboyzhou/javaup/releases/latest/download/install.ps1 | iex

Verify the result:

jup version