macOS
Homebrewverified · 100%
brew install fastjarlocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install fastjarMacPorts ports tree · archivers/fastjar/Portfile · source: api.github.com
brew
Install fastjar with Homebrew, apk, apt, MacPorts, Nix, pacman, zypper
Implementation of Sun's jar tool. Version 0.98 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Alpine Linux apkverified · 92%
sudo apk add fastjarAlpine Linux edge package indexes · fastjar · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install fastjarDebian stable package indexes · fastjar · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#fastjarnixpkgs package indexes · pkgs/by-name/fa/fastjar/package.nix · source: api.github.com
Arch Linux pacmanverified · 92%
sudo pacman -S fastjarArch Linux sync databases · fastjar · source: geo.mirror.pkgbuild.com
openSUSE zypperverified · 92%
sudo zypper install fastjaropenSUSE Tumbleweed package metadata · fastjar · source: download.opensuse.org
overview
Package summary
Implementation of Sun's jar tool
Project links
Commands and aliases
- fastjar
- grepjar
history
Project history and usage
fastjar is a free-software implementation of the Java JAR command, paired with grepjar, that survived as a small Unix package because it let GCC/GNU Java-era systems create and inspect JAR archives without depending on Sun's proprietary toolchain.
Project history
The Savannah project page records fastjar as a non-GNU project registered on March 21, 2006, with GPL-2.0-or-later licensing and a CVS source repository. GCC hosted a manual titled Guide to GNU jar utilities, documenting fastjar and grepjar as command-line utilities.
Adoption history
fastjar's adoption has been historical and distribution-driven rather than community-growth driven. It appears in Unix package managers as a compatibility tool for older Java/GNU Classpath and GCC Java workflows, while modern Java installations generally provide jar through the JDK.
How it is used
The GCC manual describes fastjar as the tool to invoke for JAR archive operations and grepjar as the companion search utility. In practice it is installed when a small, standalone jar-compatible command is needed in old build recipes or minimal packaging environments.
Why package nerds care
Package maintainers care about fastjar mostly as fossil infrastructure: it is a reminder of the period when free Java tooling had to replace proprietary pieces one command at a time, and it remains packaged because old build graphs sometimes still name fastjar explicitly.
Timeline
- 2006: fastjar project registered on Savannah.
- 2006: GCC 4.0-era online docs published the fastjar and grepjar manual.
- 2026: Homebrew still packages fastjar 0.98 as an implementation of Sun's jar tool.
Related projects
- Sun/Oracle jar is the tool fastjar implements.
- grepjar is shipped and documented as fastjar's companion utility.
- GNU Classpath and GCC Java-era packaging are the ecosystem context in which fastjar mattered most.
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.
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 | Note |
|---|---|---|---|
fastjar | cli | global executable | |
grepjar | 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 version0.98
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://savannah.nongnu.org/projects/fastjar
- infoNo package-manager update timestamp was available.low confidence
- infoRelease/tag comparison is only available for GitHub repositories.https://savannah.nongnu.org/projects/fastjarnone confidence
install metadata
Package metadata
| Package key | brew:fastjar |
|---|---|
| Version | 0.98 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/fastjar |
| Homepage | https://savannah.nongnu.org/projects/fastjar |
| Repository | https://cvs.savannah.nongnu.org/viewvc/fastjar |
| Upstream docs | https://gcc.gnu.org/onlinedocs/gcc-4.0.4/fastjar |
| License | GPL-2.0-or-later |
| Source archive | https://download.savannah.nongnu.org/releases/fastjar/fastjar-0.98.tar.gz |
| 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 | fastjar |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
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%
fastjar 2:0.98-7
Jar creation utility
sudo apt install fastjar- Section: java
- Architecture: amd64
- 4 dependencies
- normalized package name match
- Matched by: Fastjar
Nix95%
fastjar
nix profile install nixpkgs#fastjar- normalized package name match
- Matched by: Fastjar
Ubuntu apt95%
fastjar 2:0.98-7
Jar creation utility
sudo apt install fastjar- Section: universe/misc
- Architecture: amd64
- 4 dependencies
- normalized package name match
- Matched by: Fastjar
apk95%
fastjar 0.98-r5
A fast implementation of Java Archiver
http://savannah.nongnu.org/projects/fastjar
sudo apk add fastjar- License: GPL-2.0
- Architecture: x86_64
- Source Package: fastjar
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Fastjar
apk95%
fastjar-doc 0.98-r5
A fast implementation of Java Archiver (documentation)
http://savannah.nongnu.org/projects/fastjar
sudo apk add fastjar-doc- License: GPL-2.0
- Architecture: x86_64
- Source Package: fastjar
- normalized package name match
- Matched by: Fastjar
pacman95%
fastjar 0.98-7
Sun java jar compatible archiver
https://savannah.nongnu.org/projects/fastjar
sudo pacman -S fastjar- License: GPL
- Architecture: x86_64
- 2 dependencies
- normalized package name match
- Matched by: Fastjar
zypper95%
fastjar 0.98-28.3
Java package archiver
https://savannah.nongnu.org/projects/fastjar/
sudo zypper install fastjar- License: GPL-2.0-or-later
- Category: Development/Languages/Java
- Architecture: x86_64
- Source Package: fastjar
- 3 dependencies
- 1 provides
- normalized package name match
- Matched by: Fastjar
MacPorts95%
fastjar
sudo port install fastjar- normalized package name match
- Matched by: Fastjar
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.
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