Java plugin

Java plugin for proto, using Eclipse Adoptium OpenJDK distribution.

This plugin uses [https://api.adoptium.net/](Adoptium API) to fetch available versions and to provide download URLs to proto.

Deprecation notice

New proto version introduced built-in Java plugin that covers everything this plugin did. Therefore, this plugin will cease any development after the built-in plugin stabilizes.

Installation

Register the plugin by adding the following to your .prototools file:

[plugins]
java = "github://eplightning/openjdk-adoptium-proto-plugin"

Alternatively, use proto cli:

proto plugin add java "github://eplightning/openjdk-adoptium-proto-plugin"

Usage

# fully qualified version (MUST contain build number)
proto install java 25.0.1+8

# most recent OpenJDK 25
proto install java 25

# list all available versions
proto versions java

Known issues

• Fully qualified semantic version must contain OpenJDK build number to successfully install (e.g. 25.0.1+8).

Gradle

For gradle users wanting to manage gradle versions with proto instead of the wrapper, a simple non-WASM plugin is also available:

[plugins]
gradle = "https://raw.githubusercontent.com/eplightning/openjdk-adoptium-proto-plugin/main/build-plugins/gradle.toml"