Spring Boot 3.0 Native Samples

Samples of using Spring Boot 3.0 to build native executables

• Java 17 required (GraalVM Java 17 required for native profile)
• Spring Boot 3.0.0
• Tested with GraalVM 22.3.0 Java 17 CE

Samples

Metrics captured on Windows 10 with GraalVM 22.3.0 Java 17 CE

gRPC

Simple gRPC service

Mode	Binary size	Startup time	Memory
JVM	21.5 (JAR)	0.96s	96MB
Native	47.8MB	0.124s	24.8MB

Spring Data JPA with WebMvc

A microservice with REST API and RDBMS backend

Mode	Binary size	Startup time	Memory
JVM	42.7 (JAR)	2.72s	183MB
Native	129MB	0.277s	62.3MB

Features:

• Spring Data JPA
• Spring Web MVC
• Flyway
• PostgreSQL
• Testcontainers

Reactive JDBC & WebFlux

A reactive microservice with REST API and RDBMS backend

Mode	Binary size	Startup time	Memory
JVM	32.1 (JAR)	1.929s	142.7MB
Native	79.4MB	0.217s	56.9MB

Features:

• Spring Data R2dbc
• Spring WebFlux
• Flyway
• PostgreSQL
• Testcontainers