Individual skill
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.
skills/deploying-java-sdk-bundles/SKILL.md
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- Last checked
- Nov 6, 2026
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- Nov 2, 2026
- License
- Apache-2.0
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- agents Repository topic
- ai Repository topic
- airflow Repository topic
- data-engineering Repository topic
- mcp Repository topic
- skills Repository topic
- claude Repository topic
- cursor Repository topic
- apache-airflow Repository topic
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- devops Derived category
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# 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**.
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## Build with Gradle (recommended)
Apply the SDK's Gradle plugin and declare dependencies in `build.gradle`:
