Set it up

I am on mac, and use bash

brew install jenv
echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.bashrc

For other ways to install it, please refer to https://www.jenv.be/

Configure it

• jEnv comes with a bunch of plugins, you can list them out

jenv plugins

• I use maven as my main build tool, but we also have some components built with gradle; while ****other scripts also expect JAVA_HOME to be exported

jenv enable-plugin maven
jenv enable-plugin gradle
jenv enable-plugin export

• we also have some clojure and scala around the house, so I enable the plugins for them too

jenv enable-plugin scala
jenv enable-plugin sbt
jenv enable-plugin lein

• I sometimes need to dig up ancient projects built with ant … yey me …

jenv enable-plugin ant

• ok you get the point, you can enable as many plugins as needed

Use it

This may surprise a lot of people that know me, but the one time I like to poke around a UI, is to download my JDKs … also why I don’t use sdkman for those of you wondering.

I use the following two sources :

• https://www.oracle.com/au/java/technologies/javase-downloads.html
• https://adoptopenjdk.net/

Once I download what I need, I register it on jenv; it also works for my locally modified JDKs