Handle a number of Java SDKs with asdf with ease – Java Code Geeks

asdf is a useful command-line instrument that lets you handle and change between completely different variations of programming language runtimes together with Java, Kotlin, Node.js, Python and their related packages and libraries together with Gradle, Maven, Yarn, Spring Boot CLI.

asdf is supported for all main working programs together with Home windows through Home windows Subsystem for Linux 2 (WSL2).

Relying in your setup (OS, shell and set up technique) you’ll want to carry out a number of steps with a purpose to make sure that asdf works appropriately. Seek the advice of the documentation for extra particulars: https://asdf-vm.com/information/getting-started.html.

I work on macOS with Iterm2 and oh-my-zsh, so the setup was to put in asdf with Homebrew (brew set up asdf) after which to put in asdf for oh-my-zsh (https://github.com/ohmyzsh/ohmyzsh/tree/grasp/plugins/asdf)

Set up and handle Java variations

After getting asdf put in, you should use the next steps to put in and handle Java variations:

• Add the Java plugin to asdf by working: asdf plugin add java.
• Checklist all obtainable Java variations by working: asdf record all java. Tip: Pipe the command with grep if you’re searching for particular runtime.
• Use the asdf set up command to put in a selected Java model. For instance, to put in GraalVM with Java 19 assist, you’ll run asdf set up java graalvm-22.3.0+java19:

➜ ~ asdf set up java graalvm-22.3.0+java19

###################### 100.0%

graalvm-ce-java19-darwin-amd64-22.3.0.tar.gz

graalvm-ce-java19-darwin-amd64-22.3.0.tar.gz: OK

• Use the asdf world command to set the default model of Java to make use of in your machine. For instance, to set beforehand put in model because the default model, you’ll run asdf world graalvm-22.3.0+java19:

➜ ~ asdf world java graalvm-22.3.0+java19

➜ ~ java -version

openjdk model "19.0.1" 2022-10-18

OpenJDK Runtime Surroundings GraalVM CE 22.3.0 (construct 19.0.1+10-jvmci-22.3-b08)

OpenJDK 64-Bit Server VM GraalVM CE 22.3.0 (construct 19.0.1+10-jvmci-22.3-b08, blended mode, sharing)

World defaults are managed in $HOME/.tool-versions file:

➜ ~ tail $HOME/.tool-versions

java graalvm-22.3.0+java19

In opposite, whenever you wish to use model particular to a listing you’ll use asdf native command which creates $PWD/.tool-versions file. Now, every you navigate to that listing, asdf picks the variations and set them correctly for this listing solely.

Set up different instruments

There are lots of language runtimes and instruments you may handle with asdf. The method is as follows:

• You search for the plugin (e.g. asdf plugin record all | grep gradle)
• You add the plugin (e.g. asdf plugin add gradle)
• You discover the model you wish to handle (e.g. asdf record all gradle)
• You put in the chosen model of langugate runtime or instrument (e.g. asdf set up gradle 7.6)

Various: SDKMAN!

Earlier than I found asdf, I used SDKMAN!. SDKMAN! is a instrument for managing parallel variations of a number of SDKs and as soon as put in, it supplies a handy sdk command for putting in, switching, eradicating and itemizing put in SDKs. Study extra about it from my weblog publish: Handle a number of Java SDKs with SDKMAN! with ease