JEP 483: Ahead-of-Time Class Loading & Linking failing on a simple Gradle Spring Boot project

[ioi.lam at oracle.com]

It looks like your classpath have some directories:


[4,648s][error  ][cds        ] Error: non-empty directory 
'/home/danielpelaez/Documents/Distribution/aot/java-aot/build/classes/java/test'
[4,648s][error  ][cds        ] Error: non-empty directory 
'/home/danielpelaez/Documents/Distribution/aot/java-aot/build/classes/java/main'
[4,648s][error  ][cds        ] Error: non-empty directory 
'/home/danielpelaez/Documents/Distribution/aot/java-aot/build/resources/main'


Please try to package these directories into a JAR file and use that in 
your classpath.


Thanks

- Ioi

On 5/7/25 12:57 PM, Daniel Andres Pelaez Lopez wrote:
> Hi everyone,
>
> We are testing JEP 483 on JDK 24 using the following dummy Gradle 
> Spring Boot project: 
> https://github.com/estigma88/java-aot/tree/master. As we want to 
> generate the AOT cache from the tests, we added a custom Test task to 
> receive the AOT flags for the JVM as follows:
>
> tasks.withType<Test> {
>    useJUnitPlatform()
>
>    project.findProperty("aot")?.let {
>       val aotFlags = it.toString().split(",")
>       jvmArgs(aotFlags)
>     }
> }
>
> And we are using the following commands to generate the AOT cache:
>
> ./gradlew :test 
> -Paot="-XX:AOTMode=record,-XX:AOTConfiguration=app.aotconf" -> This 
> one succeed
>
> ./gradlew :test 
> -Paot="-XX:AOTMode=create,-XX:AOTConfiguration=app.aotconf,-XX:AOTCache=app.aot" 
> -> This one fails
>
> The following are the logs for the create command:
>
> [1,328s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.http.client.ReactorResourceFactory
> [1,579s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.test.context.transaction.TransactionalTestExecutionListener
> [1,581s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener
> [1,668s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.logging.log4j2.Log4J2LoggingSystem
> [2,412s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.http.codec.multipart.DefaultPartHttpMessageReader
> [2,575s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.autoconfigure.cache.InfinispanCacheConfiguration
> [2,577s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.autoconfigure.cache.RedisCacheConfiguration
> [2,799s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer
> [3,029s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.core.ReactiveAdapterRegistry$ReactorAdapter
> [3,109s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.http.client.JettyClientHttpRequestFactoryBuilder
> [3,110s][warning][cds] Preload Warning: Verification failed for 
> org.springframework.boot.http.client.HttpComponentsClientHttpRequestFactoryBuilder
> [3,180s][warning][cds] java.lang.ClassNotFoundException: 
> org.mockito.internal.creation.bytebuddy.inject.MockMethodDispatcher
> [3,180s][warning][cds] Preload Warning: Cannot find 
> org/mockito/internal/creation/bytebuddy/inject/MockMethodDispatcher
> [3,196s][warning][cds] Preload Warning: Verification failed for 
> org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator
> [3,197s][warning][cds] java.lang.NoClassDefFoundError: 
> org/mockito/internal/creation/bytebuddy/inject/MockMethodDispatcher
> [3,197s][warning][cds] Preload Warning: Cannot find 
> org/mockito/internal/creation/bytebuddy/MockMethodAdvice
> [3,307s][warning][cds] java.lang.ClassNotFoundException: 
> net.bytebuddy.utility.Invoker$Dispatcher
> [3,307s][warning][cds] Preload Warning: Cannot find 
> net/bytebuddy/utility/Invoker$Dispatcher
> [3,906s][warning][cds,resolve] :
> An error has occurred while processing class list file app.aotconf 9635:5.
> [3,906s][warning][cds,resolve] @cp 
> org/mockito/internal/creation/bytebuddy/MockMethodAdvice 1 2 7 9 10 11 
> 17 22 26 28 29 33 36 40 44 48 258
> class org/mockito/internal/creation/bytebuddy/MockMethodAdvice is not 
> (yet) loaded by one of the built-in 
> loaders[3,906s][warning][cds,resolve]     ^
> [3,906s][warning][cds,resolve] Your classlist may be out of sync with 
> the JDK or the application.
> An error has occurred while processing class list file app.aotconf 
> 11862:5.
> [4,467s][warning][cds,resolve] :
> class 
> org/mockito/internal/creation/bytebuddy/inject/MockMethodDispatcher is 
> not (yet) loaded by one of the built-in 
> loaders[4,467s][warning][cds,resolve] @cp 
> org/mockito/internal/creation/bytebuddy/inject/MockMethodDispatcher 1 
> 2 8 14 20 25 27 38 59
> [4,467s][warning][cds,resolve]     ^
> [4,467s][warning][cds,resolve] Your classlist may be out of sync with 
> the JDK or the application.
> [4,608s][warning][cds        ] Preload Warning: Verification failed 
> for org.springframework.web.servlet.view.freemarker.FreeMarkerView
> [4,648s][error  ][cds        ] Error: non-empty directory 
> '/home/danielpelaez/Documents/Distribution/aot/java-aot/build/classes/java/test'
> [4,648s][error  ][cds        ] Error: non-empty directory 
> '/home/danielpelaez/Documents/Distribution/aot/java-aot/build/classes/java/main'
> [4,648s][error  ][cds        ] Error: non-empty directory 
> '/home/danielpelaez/Documents/Distribution/aot/java-aot/build/resources/main'
> Hint: enable -Xlog:class+path=info to diagnose the failure
> Error occurred during CDS dumping
> Cannot have non-empty directory in paths
>
> Error logs seem related to the AOT feature and not Gradle, but you 
> will know better.
>
> Any help would be appreciated.
>
> -- 
> Daniel
> e. estigma88 at gmail.com
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