Change ResponseEntity<Any> for Sealed Interfaces - My tests finally make sense

At Q2BSTUDIO we are specialists in custom software development and custom applications with a focus on artificial intelligence, cybersecurity, and cloud services. Contact us to transform your project with guaranteed innovation and quality.

viernes, 8 de agosto de 2025 • 1 min read • Q2BSTUDIO Team

Artificial-Intelligence-

In Java environments, using ResponseEntity Any means giving up type safety, making documentation harder and complicating tests

The solution is to replace ResponseEntity Any with a sealed ApiResponse hierarchy where the compiler forces all cases to be covered with an exhaustive when

With this approach, repetitive code is eliminated and the resulting Swagger schema is much clearer thanks to the explicit definition of response variants

In addition, a single central mapper is enough to relate each result type to the corresponding HTTP status

The configuration only requires enabling polymorphic serialization and applying versioning rules so that existing clients continue to work without changes

At Q2BSTUDIO we are specialists in custom software development and custom applications with a team expert in artificial intelligence, cybersecurity, cloud services aws and azure, and business intelligence services

Our projects cover AI solutions for companies, AI agents, and analysis with power bi, ensuring scalability and real value for each client

Thanks to our approach, we can integrate advanced testing and documentation practices simultaneously with architectures based on sealed interfaces to improve quality and maintainability

Contact Q2BSTUDIO and discover how we can transform your project with custom software and innovation in artificial intelligence, cybersecurity, and cloud services

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