Deploying Java SDK Bundles

A Java SDK deployment has one artifact: a bundle — your compiled task classes plus the SDK, packaged as a JAR (or a thin JAR alongside its dependency JARs). You build it with Gradle or Maven, then place it in a directory that the JavaCoordinator scans (jars_root) on every worker. This skill is platform-neutral; it shows the build once, then both an open-source and an Astro deployment path.

Experimental. The Java SDK is in preview. Artifact versions below are shown as ${version}; while the SDK is pre-release you may need to build the artifacts into your local Maven repository yourself (see the preview builds section).

Order of operations: build the bundle (this skill) → place it where jars_root points → configure the coordinator (configuring-airflow-language-sdks). The task code itself is authoring-java-sdk-tasks.

Build with Gradle (recommended)

Apply the SDK's Gradle plugin and declare dependencies in build.gradle:

plugins {
    id("org.apache.airflow.sdk") version "${version}"
}