How to Generate Java Classes from XSD Using Java 11 and Gradle

Learn how to generate Java classes from XSD with JAXB in Java 11 and Gradle. We'll break down essential steps and dependencies for success.
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How to Generate Java Classes from XSD Using Java 11 and Gradle

Generating Java classes from XSD (XML Schema Definition) can be an essential task for developers working with XML data. In Java 11, you might face challenges since the support for JAXB (Java Architecture for XML Binding) and related tools like xjc has been removed. If you are looking to incorporate this functionality in your Spring Boot project using Gradle, you've come to the right place! In this post, we'll guide you step-by-step on how to effectively generate Java classes from XSD files using Java 11 and Gradle.

The Problem: Lack of Support for JAXB in Java 11

When using Java 11, developers might experience difficulty finding resources and tools to generate Java files from XSD schemas due to the removal of JAXB. Many examples are either outdated or do not work seamlessly with Gradle. However, with the right setup and dependencies, you can successfully regenerate your Java classes from XSD.

The Solution: Configuring Gradle for JAXB

Follow these steps to ensure you have a working setup for generating Java classes from your XSD schema.

Step 1: Add Dependencies

[[See Video to Reveal this Text or Code Snippet]]

This configuration specifies jaxbTargetDir, which is where your generated Java files will be stored, and declares essential JAXB dependencies.

Step 2: Create the XSD to Java Task

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Ensure Compilation Order

Finally, you need to make sure that Java compilation depends on the execution of the xsd2java task. Add the following line:

[[See Video to Reveal this Text or Code Snippet]]

This makes sure that the Java classes are generated before the main code compile process begins.

Conclusion

By following these steps, you can overcome the challenges posed by the removal of JAXB support in Java 11. Include the correct dependencies in your Gradle configuration, create a task for converting XSD to Java, and ensure your compile tasks are set up properly. With this setup, generating Java classes from XSD is more manageable, allowing you to focus on developing features without being bogged down by configuration issues.

Now, you have all the tools and knowledge to generate Java classes from XSD using Java 11 and Gradle effectively. Happy coding!