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deploying-java-sdk-bundles

Skill

Builds and deploys compiled Airflow Java SDK bundles so workers can run them. Use when the user wants to package a JVM task bundle into a JAR, asks about the `org.apache.airflow.sdk` Gradle plugin, `./gradlew bundle`, the Maven shade/BOM setup, fat vs thin JARs, the logging integration artifacts (JP

412DevOps

Install

git clone https://github.com/astronomer/agents.git ~/.claude/skills/deploying-java-sdk-bundles

What is deploying-java-sdk-bundles?

Builds and deploys compiled Airflow Java SDK bundles so workers can run them. Use when the user wants to package a JVM task bundle into a JAR, asks about the `org.apache.airflow.sdk` Gradle plugin, `./gradlew bundle`, the Maven shade/BOM setup, fat vs thin JARs, the logging integration artifacts (JPL, SLF4J, Log4j 2, JUL), preview/snapshot builds, or getting the JAR onto an Airflow worker (Docker, Kubernetes, or Astro). For the task code see authoring-java-sdk-tasks; for the Airflow coordinator settings see configuring-airflow-language-sdks.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~137 tokens of context used while enabled, before you invoke anything

Trust

87/100 · Excellent

2 factors scored below maximum

Documentation

README · ~6 min read

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}"

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