JBang Dev Kit Manager

This is a library that manages Java JDK versions on the local machine. It can detect Java versions that are already available on the system that have been installed by a variety of methods, this being default system installers or 3rd party tools like SDKMan, Brew, Scoop, etc. It can also download, install and manage JDKs itself.

Usage

First include the library in your project:

Maven

<dependency>
	<groupId>dev.jbang</groupId>
	<artifactId>jdkmanager</artifactId>
	<version>0.1.0</version>
</dependency>

Gradle

implementation 'dev.jbang:jdkmanager:0.1.0'

Then the simplest way to get started is:

import dev.jbang.devkitman.*;

public class Main {
	public static void main(String[] args) {
		JDKManager jdkManager = JDKManager.create();
		Jdk jdk = jdkManager.getOrInstall("11+");
		System.out.println("JDK " + jdk.majorVersion() + " home folder " + jdk.getHome());
	}
}

This will either find a Java JDK on the system that is at least version 11, or it will download and install a JDK that is at least version 11 (the actual version that gets installed depends on the "default version" that is configured).