add-benchmarks

What problem does it solve?

This Skill solves the problem of adding repeatable, in-JVM performance benchmarks to a Spring Boot 4 codebase so you can measure throughput and detect performance regressions.

Core Features & Use Cases

• JMH setup for Spring Boot 4: Adds the me.champeau.jmh Gradle plugin and JMH dependencies, plus a safe, on-demand ./gradlew jmh workflow.
• Correct build configuration: Configures the jmhJar task with zip64 for large Spring Boot classpaths and defines a benchmark configuration block with short CI-friendly iterations.
• Seed benchmark generation: Creates a baseline *Benchmark.java under src/jmh/java/<package>/ to establish a reference point before you add real domain benchmarks.
• Use case: When introducing a new hot path (e.g., serialization-heavy logic, mapping changes, or database query adjustments), use this Skill to benchmark throughput of targeted service-method implementations.

Quick Start

Tell the Skill: add JMH benchmarks to my Spring Boot 4 project so I can run ./gradlew jmh and start measuring throughput with a seed benchmark.