install

Additional install commands

macOS

Homebrewverified · 100%

brew install jruby

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install jruby

MacPorts ports tree · lang/jruby/Portfile · source: api.github.com

Linux

Alpine Linux apkverified · 92%

sudo apk add jruby

Alpine Linux edge package indexes · jruby · source: dl-cdn.alpinelinux.org

Debian aptverified · 92%

sudo apt install jruby

Debian stable package indexes · jruby · source: deb.debian.org

Nixverified · 92%

nix profile install nixpkgs#jruby

nixpkgs package indexes · jruby · source: raw.githubusercontent.com

Arch Linux pacmanverified · 92%

sudo pacman -S jruby

Arch Linux sync databases · jruby · source: geo.mirror.pkgbuild.com

Fedora dnfverified · 92%

sudo dnf install ast

Fedora Rawhide package metadata · ast · source: dl.fedoraproject.org

Windows

Chocolateyverified · 92%

choco install jruby

Chocolatey community package catalog · jruby · source: community.chocolatey.org

Scoopverified · 92%

scoop install main/jruby

Scoop official bucket manifest trees · bucket/jruby.json · source: api.github.com

overview

Package summary

Ruby implementation in pure Java

Project links

Commands and aliases

ast
install_doc
jbundle
jbundler
jerb
jgem
jirb
jirb_swing
jminitest
jracc
jrake
jrdoc
jri
jruby
jruby.sh
jrubyc
jsyntax_suggest
jtest-unit
lock_jars

history

Project history and usage

JRuby is the long-running Ruby implementation for the Java Virtual Machine. It gives Ruby code access to Java classes, JVM deployment models, Java threading, and JVM tooling while preserving the Ruby language and much of the Ruby ecosystem.

Project history

JRuby began in 2001 as a Java-hosted Ruby implementation and became one of the canonical examples of a dynamic language on the JVM. The project moved from a direct-port style implementation toward a JVM-oriented runtime with Java integration, bytecode compilation work, and compatibility targets that followed major Ruby language versions.

The project's institutional story is unusually visible for an open-source language runtime. Charles Nutter and Thomas Enebo announced in September 2006 that Sun Microsystems hired them to work on JRuby full time. After Sun, JRuby development continued through Engine Yard and then Red Hat involvement, keeping paid core development behind the runtime for many years.

Adoption history

JRuby became important during the Ruby on Rails expansion because it made Ruby applications plausible inside Java shops that already standardized on JVM operations. A 2011 JRuby blog post describes the 2006 JavaOne Rails demo as a turning point, at a time when the JVM language conversation centered on projects such as Jython and Groovy.

Package-manager adoption reflects that maturity: JRuby appears across Homebrew, Debian/Ubuntu, Fedora-style distributions, MacPorts, Chocolatey, Scoop, Nix, Arch, and Alpine. For package maintainers it is both a Ruby runtime and a Java application, so packaging has to account for Ruby executables, Java dependencies, and RubyGems-facing commands.

How it is used

JRuby is used to run Ruby applications on the JVM, embed Ruby scripting into Java systems, call Java libraries from Ruby, and package Ruby applications for environments where the JVM is the operational baseline. Its command set includes JRuby-prefixed versions of common Ruby tools such as gem, irb, rake, rdoc, and ri.

Why package nerds care

JRuby is package-nerd catnip because it crosses ecosystem boundaries cleanly but not simply: Ruby code, Java bytecode, RubyGems, Maven-style expectations, native extension compatibility, and OS package managers all meet in one runtime. It is also a benchmark case for how language implementations survive outside their reference VM.

Timeline

2001: JRuby project began as a Ruby implementation on the JVM.
2006: Sun Microsystems hired Charles Nutter and Thomas Enebo to work on JRuby full time.
2006: JRuby demonstrated Rails running on the JVM at JavaOne.
2009: JRuby core development moved from Sun to Engine Yard.
2012: Nutter and Enebo joined Red Hat to continue JRuby work.
2015: JRuby 9.0.0.0 moved the versioning line into Ruby 2.x compatibility.
2022: JRuby 9.4.0.0 targeted Ruby 3.1 compatibility.

Related projects

Related projects include MRI/CRuby, RubyGems, Rails, Jython, Groovy, TruffleRuby, Rubinius, and JVM dynamic-language work such as invokedynamic.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 2 runtime dependencies.
Build metadata lists 4 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure
`ast`	cli	global executable
`install_doc`	cli	global executable
`jbundle`	cli	global executable
`jbundler`	cli	global executable
`jerb`	cli	global executable
`jgem`	cli	global executable
`jirb`	cli	global executable
`jirb_swing`	cli	global executable
`jminitest`	cli	global executable
`jracc`	cli	global executable
`jrake`	cli	global executable
`jrdoc`	cli	global executable
`jri`	cli	global executable
`jruby`	cli	global executable
`jruby.sh`	cli	global executable
`jrubyc`	cli	global executable
`jsyntax_suggest`	cli	global executable
`jtest-unit`	cli	global executable
`lock_jars`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version10.1.0.0

manager updated2026-06-22

local dataok

upstreamnot checked

latest detectednot detected

https://www.jruby.org/

infoRelease/tag comparison is only available for GitHub repositories.https://www.jruby.org/none confidence

install metadata

Package metadata

Package key	brew:jruby
Version	10.1.0.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/jruby
Homepage	https://www.jruby.org/
Repository	https://github.com/jruby/jruby
Upstream docs	https://github.com/jruby/jruby/wiki
License	EPL-2.0 OR GPL-2.0-only OR LGPL-2.1-only
Source archive	https://search.maven.org/remotecontent?filepath=org/jruby/jruby-dist/10.1.0.0/jruby-dist-10.1.0.0-src.zip
Last updated	2026-06-22T14:03:51-07:00
Pulse	updated
Dependencies	libfixposix, openjdk
Build dependencies	ant, maven, pkgconf, ruby
Uses from macOS	libffi
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	jruby
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

jruby 9.4.8.0+ds-3

100% pure-Java implementation of Ruby

https://jruby.org/

sudo apt install jruby

Section: ruby
Architecture: all
27 dependencies
1 optional deps
normalized package name match
Matched by: Jruby

Debian stable package indexes · deb.debian.org · Debian stable package indexes: jruby from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

Nix95%

jruby

nix profile install nixpkgs#jruby

normalized package name match
Matched by: Jruby

nixpkgs package indexes · raw.githubusercontent.com · nixpkgs package indexes: jruby from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix

Ubuntu apt95%

jruby 9.4.6.0+ds-1ubuntu3

100% pure-Java implementation of Ruby

http://jruby.org/

sudo apt install jruby

Section: universe/ruby
Architecture: all
23 dependencies
1 optional deps
normalized package name match
Matched by: Jruby

Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: jruby from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

apk95%

jruby 9.3.15.0-r0

An implementation of Ruby on the JVM

https://www.jruby.org/

sudo apk add jruby

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
1 provides
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-irb 9.3.15.0-r0

Interactive JRuby console

https://www.jruby.org/

sudo apk add jruby-irb

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
1 provides
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-irb from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-libs 9.3.15.0-r0

JRuby's standard libraries

https://www.jruby.org/

sudo apk add jruby-libs

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-libs from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-rake 9.3.15.0-r0

Ruby based make-like utility.

https://www.jruby.org/

sudo apk add jruby-rake

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-rake from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-rdoc 9.3.15.0-r0

Ruby documentation tool

https://www.jruby.org/

sudo apk add jruby-rdoc

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-rdoc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-readline 9.3.15.0-r0

Readline support for JRuby

https://www.jruby.org/

sudo apk add jruby-readline

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-readline from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

apk95%

jruby-webrick 9.3.15.0-r0

HTTP server toolkit for JRuby

https://www.jruby.org/

sudo apk add jruby-webrick

License: EPL-2.0 OR GPL-2.0-or-later OR LGPL-2.1-or-later AND Ruby
Architecture: x86_64
Source Package: jruby
1 dependencies
normalized package name match
Matched by: Jruby

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: jruby-webrick from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

pacman95%

jruby 10.1.0.0-1

100% pure-Java implementation of the Ruby programming language

https://www.jruby.org/

sudo pacman -S jruby

License: (EPL-2.0 OR GPL-2.0-only OR LGPL-2.1-only) AND BSD-3-Clause AND MIT AND MIT-0 AND Apache-2.0 AND Ruby
Architecture: any
4 dependencies
normalized package name match
Matched by: Jruby

Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: jruby from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

MacPorts95%

jruby

sudo port install jruby

normalized package name match
Matched by: Jruby

MacPorts ports tree · api.github.com · MacPorts ports tree: lang/jruby/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

Chocolatey95%

jruby

choco install jruby

normalized package name match
Matched by: Jruby

Chocolatey community package catalog · community.chocolatey.org · Chocolatey community package catalog: jruby from http://community.chocolatey.org/api/v2/Packages?$filter=IsLatestVersion&$select=Id&$top=1000&$skiptoken='10.8512','kmupd4'

Scoop95%

main/jruby

scoop install main/jruby

normalized package name match
Matched by: Jruby

Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/jruby.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1

MacPorts94%

ast

sudo port install ast

installed executable or alias match
Matched by: Ast

MacPorts ports tree · api.github.com · MacPorts ports tree: science/ast/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

dnf92%

ast 9.2.12-4.fc44

A Library for Handling World Coordinate Systems in Astronomy

http://starlink.eao.hawaii.edu/starlink/AST

sudo dnf install ast

License: LGPL-3.0-or-later AND LicenseRef-Callaway-LGPLv2+
Category: Unspecified
Architecture: i686
Source Package: ast
4 dependencies
8 provides
installed executable or alias match
Matched by: Ast

Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: ast from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/jruby.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install jruby with Homebrew, apk, chocolatey, apt, MacPorts, Nix, pacman, scoop, dnf

Additional install commands

macOS

Linux

Windows

Package summary

Project links

Commands and aliases

Project history and usage

Project history

Adoption history

How it is used

Why package nerds care

Timeline

Related projects

Sources

Risk level: green

Risk classifier

Why

Signals

Install behavior

Recommended review

Installed executables

Version and freshness

Package metadata

Source database details

Other package-manager records

Internal package links

Topical hubs

Related tools

Same workflow

Agent security guides

Generated from repository data

Combined YAML source

Used sources