gistfile1.txt

<build>
    <plugins>
        <plugin>
            <groupId>org.openrewrite.maven</groupId>
            <artifactId>rewrite-maven-plugin</artifactId>
            <version>5.40.0</version> <!-- Use latest version -->
            <configuration>
                <activeRecipes>
                    <!-- Upgrade to Java 21 -->
                    <recipe>org.openrewrite.java.migrate.Java8toJava21</recipe>
                    <!-- Upgrade to Spring Boot 3 -->
                    <recipe>org.openrewrite.java.spring.boot3.UpgradeSpringBoot_3_0</recipe>
                </activeRecipes>
            </configuration>
            <dependencies>
                <dependency>
                    <groupId>org.openrewrite.recipe</groupId>
                    <artifactId>rewrite-java</artifactId>
                    <version>5.40.0</version> <!-- Use latest -->
                </dependency>
                <dependency>
                    <groupId>org.openrewrite.recipe</groupId>
                    <artifactId>rewrite-spring</artifactId>
                    <version>5.40.0</version> <!-- Use latest -->
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>