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Java Version Manager inspired by nvm (Node.js). Written in Go.
The goal is to provide unified pain-free experience of installing (and switching between different versions of) JDK regardless of the OS (macOS, Linux x86/x86_64/ARMv7+, Windows x86_64).
jabba install
... and from custom URLs.
(in bash/zsh/...)
curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | bash && . ~/.jabba/jabba.sh
(use the same command to upgrade)
In fish command looks a little bit different -
curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | bash; and . ~/.jabba/jabba.fish
If you don't have
curlinstalled - replacecurl -sLwithwget -qO-.
If you are behind a proxy see - curl / wget manpage. Usually simple
http_proxy=http://proxy-server:port https_proxy=http://proxy-server:port curl -sL ...is enough.
While you can use the same snippet as above, chances are you don't want jabba binary & shell
integration script(s) to be included in the final Docker image, all you want is a JDK. Here is the Dockerfile showing how this can be done:
FROM buildpack-deps:jessie-curl
RUN curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | \
JABBA_COMMAND="install 1.8 -o /jdk" bash
ENV JAVA_HOME /jdk
ENV PATH $JAVA_HOME/bin:$PATH
(when
JABBA_COMMANDenv variable is setinstall.shdownloadsjabbabinary, executes specified command and then deletes the binary)
$ docker build -t <image_name>:<image_tag> .
$ docker run -it --rm <image_name>:<image_tag> java -version
java version "1.8....
(in powershell)
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-Expression (
Invoke-WebRequest https://github.com/shyiko/jabba/raw/master/install.ps1 -UseBasicParsing
).Content
(use the same command to upgrade)
# list available JDK's
jabba ls-remote
# you can use any valid semver range to narrow down the list
jabba ls-remote zulu@~1.8.60
jabba ls-remote "*@>=1.6.45 <1.9" --latest=minor
# install Oracle JDK
jabba install 1.8
# install Oracle Server JRE
jabba install sjre@1.8
# install Adopt OpenJDK (Hotspot)
jabba install adopt@1.8-0
# install Adopt OpenJDK (Eclipse OpenJ9)
jabba install adopt-openj9@1.9-0
# install Zulu OpenJDK
jabba install zulu@1.8
jabba install zulu@~1.8.144 # same as "zulu@>=1.8.144 <1.9"
# install IBM SDK, Java Technology Edition
jabba install ibm@1.8
# install GraalVM CE
jabba install graalvm@1.0-0
# install OpenJDK
jabba install openjdk@1.10-0
# install OpenJDK with Shenandoah GC
jabba install openjdk-shenandoah@1.10-0
# install from custom URL
# (supported qualifiers: zip (since 0.3.0), tgz, tgx (since 0.10.0), dmg, bin, exe)
jabba install 1.8.0-custom=tgz+http://example.com/distribution.tar.gz
jabba install 1.8.0-custom=tgx+http://example.com/distribution.tar.xz
jabba install 1.8.0-custom=zip+file:///opt/distribution.zip
# uninstall JDK
jabba uninstall zulu@1.6.77
# link system JDK
jabba link system@1.8.72 /Library/Java/JavaVirtualMachines/jdk1.8.0_72.jdk
# list all installed JDK's
jabba ls
# switch to a different version of JDK (it must be already `install`ed)
jabba use adopt@1.8
jabba use zulu@~1.6.97
echo "1.8" > .jabbarc
# switch to the JDK specified in .jabbarc (since 0.5.0)
jabba use
# set default java version on shell (since 0.2.0)
# this version will automatically be "jabba use"d every time you open up a new terminal
jabba alias default 1.8
.jabbarchas to be a valid YAML file. JDK version can be specified asjdk: 1.8or simply as1.8(same as~1.8,1.8.x">=1.8.0 <1.9.0"(mind the quotes)).
jsyk: jabba keeps everything under
~/.jabba(on Linux/Mac OS X) /%USERPROFILE%/.jabba(on Windows). If at any point of time you decide to uninstall jabba - just remove this directory.
For more information see jabba --help.
PREREQUISITE: go1.8
git clone https://github.com/shyiko/jabba $GOPATH/src/github.com/shyiko/jabba
cd $GOPATH/src/github.com/shyiko/jabba
make fetch
go run jabba.go
# to test a change
make test # or "test-coverage" if you want to get a coverage breakdown
# to make a build
make build # or "build-release" (latter is cross-compiling jabba to different OSs/ARCHs)
Q: What if I already have java installed?
A: It's fine. You can switch between system JDK and jabba-provided one whenever you feel like it (jabba use ... / jabba deactivate).
They are not gonna conflict with each other.
Q: How do I switch java globally?
A: jabba doesn't have this functionality built-in because the exact way varies greatly between the operation systems and usually involves elevated permissions. But. Here are the snippets that should work:
(in powershell as administrator)
# select jdk
jabba use ...
# modify global PATH & JAVA_HOME
$envRegKey = [Microsoft.Win32.Registry]::LocalMachine.OpenSubKey('SYSTEM\CurrentControlSet\Control\Session Manager\Environment', $true)
$envPath=$envRegKey.GetValue('Path', $null, "DoNotExpandEnvironmentNames").replace('%JAVA_HOME%\bin;', '')
[Environment]::SetEnvironmentVariable('JAVA_HOME', "$(jabba which $(jabba current))", 'Machine')
[Environment]::SetEnvironmentVariable('PATH', "%JAVA_HOME%\bin;$envPath", 'Machine')
(tested on Debian/Ubuntu)
# select jdk
jabba use ...
sudo update-alternatives --install /usr/bin/java java ${JAVA_HOME%*/}/bin/java 20000
sudo update-alternatives --install /usr/bin/javac javac ${JAVA_HOME%*/}/bin/javac 20000
To switch between multiple GLOBAL alternatives use
sudo update-alternatives --config java.
By using this software you agree to
This software is for educational purposes only.
Use it at your own risk.
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