Maven process-aot fails when compiler plugin has been configured with --enable-preview

[wssy001]

I noticed you have moved all of the graalvm native-maven-plugin configuration to spring-boot-parent, and I also found this
I follow it ,wrote this to my pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.0.0-RC1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <java.version>19</java.version>
        <maven.compiler.source>19</maven.compiler.source>
        <maven.compiler.target>19</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <image>
                        <buildpacks>
                            <buildpack>gcr.io/paketo-buildpacks/bellsoft-liberica:9.9.0-ea</buildpack>
                            <buildpack>gcr.io/paketo-buildpacks/java-native-image</buildpack>
                        </buildpacks>
                    </image>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <compilerArgs>
                        <arg>--enable-preview</arg>
                        <arg>--add-modules jdk.incubator.concurrent</arg>
                    </compilerArgs>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <argLine>--enable-preview</argLine>
                    <argLine>--add-modules jdk.incubator.concurrent</argLine>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.graalvm.buildtools</groupId>
                <artifactId>native-maven-plugin</artifactId>
                <extensions>true</extensions>
                <configuration>
                    <buildArgs combine.children="append">
                        <buildArg>
                            --enable-preview
                        </buildArg>
                    </buildArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

But it did work.here is the log

[INFO] Scanning for projects...
[INFO] Found GraalVM installation from GRAALVM_HOME variable.
[INFO] 
[INFO] -----------------------< com.example:loom-test >------------------------
[INFO] Building loom-test 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] >>> native-maven-plugin:0.9.16:compile (default-cli) > package @ loom-test >>>
[INFO] 
[INFO] --- native-maven-plugin:0.9.16:add-reachability-metadata (add-reachability-metadata) @ loom-test ---
[INFO] [graalvm reachability metadata repository for ch.qos.logback:logback-classic:1.4.4]: Configuration directory not found. Trying latest version.
[INFO] [graalvm reachability metadata repository for ch.qos.logback:logback-classic:1.4.4]: Configuration directory is ch.qos.logback/logback-classic/1.4.1
[INFO] [graalvm reachability metadata repository for org.apache.tomcat.embed:tomcat-embed-core:10.0.27]: Configuration directory not found. Trying latest version.
[INFO] [graalvm reachability metadata repository for org.apache.tomcat.embed:tomcat-embed-core:10.0.27]: Configuration directory is org.apache.tomcat.embed/tomcat-embed-core/10.0.20
[INFO] 
[INFO] --- maven-resources-plugin:3.3.0:resources (default-resources) @ loom-test ---
[INFO] Copying 1 resource
[INFO] Copying 6 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.10.1:compile (default-compile) @ loom-test ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:3.3.0:testResources (default-testResources) @ loom-test ---
[INFO] Not copying test resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.10.1:testCompile (default-testCompile) @ loom-test ---
[INFO] Not compiling test sources
[INFO] 
[INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ loom-test ---
[INFO] Tests are skipped.
[INFO] 
[INFO] --- spring-boot-maven-plugin:3.0.0-RC1:process-aot (process-aot) @ loom-test ---

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::            (v3.0.0-RC1)

2022-11-05T13:49:51.023+08:00  INFO 8004 --- [           main] c.example.loomtest.LoomTestApplication   : Starting LoomTestApplication using Java 19.0.1 on AlexdeAir.lan with PID 8004 (/Users/alexpetertyler/workspace/SpringBoot/loom-test/target/classes started by alexpetertyler in /Users/alexpetertyler/workspace/SpringBoot/loom-test)
2022-11-05T13:49:51.028+08:00  INFO 8004 --- [           main] c.example.loomtest.LoomTestApplication   : No active profile set, falling back to 1 default profile: "default"
Exception in thread "main" java.lang.UnsupportedClassVersionError: Preview features are not enabled for com/example/loomtest/controller/TestController (class file version 63.65535). Try running with '--enable-preview'
        at java.base/java.lang.ClassLoader.defineClass1(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        at java.base/java.lang.Class.forName0(Native Method)
        at java.base/java.lang.Class.forName(Class.java:495)
        at java.base/java.lang.Class.forName(Class.java:474)
        at org.springframework.util.ClassUtils.forName(ClassUtils.java:283)
        at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:461)
        at org.springframework.context.support.PostProcessorRegistrationDelegate$MergedBeanDefinitionPostProcessorInvoker.resolveBeanType(PostProcessorRegistrationDelegate.java:482)
        at org.springframework.context.support.PostProcessorRegistrationDelegate$MergedBeanDefinitionPostProcessorInvoker.invokeMergedBeanDefinitionPostProcessors(PostProcessorRegistrationDelegate.java:440)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeMergedBeanDefinitionPostProcessors(PostProcessorRegistrationDelegate.java:317)
        at org.springframework.context.support.GenericApplicationContext.refreshForAotProcessing(GenericApplicationContext.java:428)
        at org.springframework.context.aot.ApplicationContextAotGenerator.lambda$processAheadOfTime$0(ApplicationContextAotGenerator.java:54)
        at org.springframework.context.aot.ApplicationContextAotGenerator.withCglibClassHandler(ApplicationContextAotGenerator.java:67)
        at org.springframework.context.aot.ApplicationContextAotGenerator.processAheadOfTime(ApplicationContextAotGenerator.java:53)
        at org.springframework.context.aot.ContextAotProcessor.performAotProcessing(ContextAotProcessor.java:106)
        at org.springframework.context.aot.ContextAotProcessor.doProcess(ContextAotProcessor.java:84)
        at org.springframework.context.aot.ContextAotProcessor.doProcess(ContextAotProcessor.java:49)
        at org.springframework.context.aot.AbstractAotProcessor.process(AbstractAotProcessor.java:82)
        at org.springframework.boot.SpringApplicationAotProcessor.main(SpringApplicationAotProcessor.java:76)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  6.122 s
[INFO] Finished at: 2022-11-05T13:49:52+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:3.0.0-RC1:process-aot (process-aot) on project loom-test: Process terminated with exit code: 1 -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Environment：

openjdk version "19.0.1" 2022-10-18
OpenJDK Runtime Environment GraalVM CE 22.3.0 (build 19.0.1+10-jvmci-22.3-b08)
OpenJDK 64-Bit Server VM GraalVM CE 22.3.0 (build 19.0.1+10-jvmci-22.3-b08, mixed mode, sharing)

[wilkinsona]

You can get past that initial problem by adding <jvmArguments>--enable-preview</jvmArguments> to the configuration of spring-boot-maven-plugin. With that change in place, AOT processing can be performed. Unfortunately, compilation of the AOT-generated source then fails:

Caused by: java.lang.IllegalStateException: Unable to compile generated source
class file for /Users/awilkinson/Downloads/gh-33012/target/classes/com/example/gh33012/Gh33012Application.class uses preview features of Java SE 19.
  (use --enable-preview to allow loading of class files which contain preview features) /Users/awilkinson/Downloads/gh-33012/target/spring-aot/main/sources/com/example/gh33012/Gh33012Application__BeanDefinitions.java -1:-1
    at org.springframework.boot.maven.AbstractAotMojo.compileSourceFiles (AbstractAotMojo.java:135)
    at org.springframework.boot.maven.ProcessAotMojo.executeAot (ProcessAotMojo.java:95)
    at org.springframework.boot.maven.AbstractAotMojo.execute (AbstractAotMojo.java:96)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:370)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:351)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:171)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:163)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:294)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:960)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:104)
    at java.lang.reflect.Method.invoke (Method.java:578)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:104)
    at java.lang.reflect.Method.invoke (Method.java:578)
    at org.apache.maven.wrapper.BootstrapMainStarter.start (BootstrapMainStarter.java:47)
    at org.apache.maven.wrapper.WrapperExecutor.execute (WrapperExecutor.java:156)
    at org.apache.maven.wrapper.MavenWrapperMain.main (MavenWrapperMain.java:72)

This can't be addressed by configuration in the pom file and will require a change in Boot's Maven plugin.

[scottfrederick]

With the latest Spring Boot 3.0.0-SNAPSHOT builds, this will now work with the following configuration:

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <jvmArguments>--enable-preview</jvmArguments>
                    <compilerArguments>--enable-preview</compilerArguments>
                </configuration>
            </plugin>