Command Reference

Command	Purpose
jup init	Detect and save the current project’s Maven and JDK
jup doctor	Diagnose the saved toolchain and suggest repairs
jup projects list	List initialized projects and their status
jup projects remove <path>	Remove one project’s saved configuration
jup projects prune [--dry-run]	Preview or remove stale project records
jup status	Show the saved toolchain
jup run mvn <args...> [--project <keyword>]	Run Maven with the saved toolchain and optionally filter project selection
jup settings add <alias> <file>	Register or update a settings alias
jup settings list	List settings aliases
jup settings use <alias>	Bind an alias to the current project
jup settings unset	Remove the project’s settings binding
jup settings remove <alias>	Remove a global alias
jup uninit	Remove the current project’s saved configuration
jup update --check	Check whether a newer release is available
jup update	Download, verify, and install the latest release
jup uninstall	Uninstall jup while preserving configuration
jup uninstall --purge	Uninstall jup and remove all javaup data
jup version	Print version, platform, and build revision

Use the built-in help for authoritative flags and arguments:

jup --help
jup <command> --help

Project-aware commands resolve the nearest initialized project by searching upward from the current directory. Global registry and alias commands do not require the terminal to be inside a project.