Prerequisites

Before adding Mateu to your project, verify the following requirements.

Java

Java 21 or later. Mateu relies on records, sealed interfaces, and pattern matching — Java 21 is the minimum supported version.

Verify with:

java -version

Build tool

Maven 3.9+ or Gradle 8+.

Mateu’s annotation processor generates source files at compile time. Both Maven and Gradle support this out of the box, but you must configure the processor explicitly (see each framework setup page for the exact configuration).

Framework

Pick one of the supported frameworks:

Framework	Version
Spring Boot MVC	3.x / 4.x
Spring Boot WebFlux	3.x / 4.x
Quarkus	3.x
Micronaut	4.x
Helidon MP	4.x

Next

Pick your framework and follow its setup guide:

• Spring Boot MVC
• Spring Boot WebFlux
• Quarkus
• Micronaut
• Helidon MP