RustyJavaC Gradle Plugin

Gradle plugin that integrates Rusty-JavaC (a Rust-based Java compiler) into your Gradle build. It compiles Java sources using the RustyJavaC CLI and assembles the resulting .class files into JARs.

Features

• Compiles Java source files with RustyJavaC
• Produces standard JAR files with automatic Main-Class manifest
• Supports multi-module source sets
• Configurable via a rustyJavaC {} DSL block

Quick Start

1. Apply the plugin

// build.gradle.kts
plugins {
    id("java")
    id("com.rustyjavac") version "0.1.0"
}

2. Configure

rustyJavaC {
    mainClass.set("com.example.Main")  // optional, for executable JAR
    javaVersion.set(25)
}

3. Build

./gradlew rustyJavaCJar

This creates build/libs/<project-name>.jar using only RustyJavaC for compilation.

Tasks

Task	Description
compileRustyJavaC	Compiles main Java sources with RustyJavaC
rustyJavaCJar	Assembles a JAR from the compiled classes

Extension Properties

Property	Type	Default	Description
javaVersion	Property<Int>	25	Target Java version
mainClass	Property<String>	""	Main class for executable JAR manifest

Requirements

• Java 25+
• Kotlin 1.9+
• Gradle 9+

License

MIT