Micronaut
JVM microservices framework with compile-time dependency injection — no reflection, fast startup, and low memory.
Micronaut processes annotations at compile time rather than runtime reflection, eliminating Spring’s slow startup and high memory usage. It supports Java, Kotlin, and Groovy and provides first-class support for GraalVM native images, serverless functions, and service discovery.
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backendjavamicroservicescloud-nativekotlingroovyfast-startup