Spring Boot 4

Spring Boot now has strong GraalVM support.

<build>

    <plugins>

        <plugin>

            <groupId>org.graalvm.buildtools</groupId>

            <artifactId>native-maven-plugin</artifactId>

        </plugin>

    </plugins>

</build>

Build

mvn -Pnative native:compile

Produces

hello-api

Executable.

BEFORE GRAALVM

Java Source

↓

javac

↓

.class

↓

JVM

↓

Machine Code (JIT)

The JVM starts first.

Then loads classes.

Then verifies them.

Then interprets.

Then JIT compiles.

Spring Boot

↓

java -jar app.jar

↓

JVM starts

↓

Load classes

↓

JIT

↓

Application starts

GraalVM

.class

↓

Native Image

↓

Machine Code