Quarkus 2.5.1/Graalvm 21.3.0 CE/Java 17 - native app failure

[hrstoyanov]

My native app is compiled with Gradle 7.3.1 and has the the following dependencies, amongst them QUARKUS-CACHE:

dependencies {
    //Quarkus
    implementation enforcedPlatform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}")
    implementation 'io.quarkus:quarkus-config-yaml'
    implementation 'io.quarkus:quarkus-cache'
    implementation 'io.quarkus:quarkus-hibernate-validator'
    implementation 'io.quarkus:quarkus-smallrye-context-propagation'
    implementation 'io.quarkus:quarkus-resteasy-jackson'
}

However, when I run the generated native .EXE, I get the below error - WHY?

C:\Users\Administrator\Desktop\gitlab\dbproxy>dbproxy\build\dbproxy-3.4.0-runner.exe  -Dsmallrye.config.locations=/Users/Administrator/Desktop/test1.yaml
...           
                                              Powered by Quarkus 2.5.1.Final
...
2021-12-08 02:32:01,925 INFO  [com.clo.dbp.mp] (main) Working directory: C:\Users\Administrator\Desktop\gitlab\dbproxy
2021-12-08 02:32:01,952 INFO  [com.clo.dbp.mp] (main) Available processors: 4
2021-12-08 02:32:01,952 INFO  [com.clo.dbp.mp] (main) Operating system: Windows Server 2019
2021-12-08 02:32:01,954 INFO  [com.clo.dbp.mp] (main) Free memory (mb): 7737
2021-12-08 02:32:01,954 INFO  [com.clo.dbp.mp] (main) Maximum memory (mb): 7746
2021-12-08 02:32:01,955 INFO  [com.clo.dbp.mp] (main) Total used memory (mb): 7746
2021-12-08 02:32:01,955 INFO  [com.clo.dbp.mp] (main) Hostname: 'winserv', network interface: name:eth1 (Intel(R) PRO/1000 MT Desktop Adapter)
2021-12-08 02:32:01,956 INFO  [com.clo.dbp.mp] (main) Java version: 17.0.1+12-jvmci-21.3-b05 from vendor: Oracle Corporation
2021-12-08 02:32:01,957 INFO  [com.clo.dbp.mp] (main) System user: C:\Users\Administrator
2021-12-08 02:32:02,108 ERROR [io.qua.run.Application] (main) Failed to start application (with profile prod): java.lang.ClassNotFoundException: com.github.benmanes.caffeine.cache.PSAMS
        at java.lang.Class.forName(DynamicHub.java:1433)
        at java.lang.Class.forName(DynamicHub.java:1408)
        at com.github.benmanes.caffeine.cache.NodeFactory.newFactory(NodeFactory.java:111)
        at com.github.benmanes.caffeine.cache.BoundedLocalCache.<init>(BoundedLocalCache.java:240)
        at com.github.benmanes.caffeine.cache.SS.<init>(SS.java:31)
        at com.github.benmanes.caffeine.cache.SSMS.<init>(SSMS.java:64)
        at com.github.benmanes.caffeine.cache.SSMSA.<init>(SSMSA.java:43)
        at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at com.github.benmanes.caffeine.cache.LocalCacheFactory.newBoundedLocalCache(LocalCacheFactory.java:92)

[gastaldi]

What happens if you add a reflection-config.json (referencing the class in the error message) like the following in your app?https://github.com/quarkusio/registry.quarkus.io/blob/main/src/main/resources/reflection-config.json

[gastaldi]

Also add this to your application.properties to make it part of the image: https://github.com/quarkusio/registry.quarkus.io/blob/main/src/main/resources/application.properties#L40

[gastaldi]

It looks like this class is removed during build time because it is considered unused, if you could provide a small reproducer that would be great

[gsmet]

Yes, so this is a classic error unfortunately. Caffeine is using different classes to handle the cache depending on the configuration you are using. We tried to register all of them for reflection at some point but we ended up with a gazillion of classes and a huge cost in image size.

Just add the following to one of your application classes:

@RegisterForReflection(targets = { com.github.benmanes.caffeine.cache.PSAMS.class })

and things should work OK.

[gsmet]

I created #22121 to properly document it.

[hrstoyanov]

@gsmet @gastaldi your suggestion does not work:

@RegisterForReflection(targets = { com.github.benmanes.caffeine.cache.PSAMS.class })

I get this compile error:

'com.github.benmanes.caffeine.cache.PSAMS' is not public in 'com.github.benmanes.caffeine.cache'. Cannot be accessed from outside package

[gastaldi]

Try doing this: #22018 (comment)

[gsmet]

@RegisterForReflection(classNames = { "com.github.benmanes.caffeine.cache.PSAMS" })

should do the trick.

[hrstoyanov]

@gsmet the annotation with strings worked! Thanks!

@RegisterForReflection(classNames = { "com.github.benmanes.caffeine.cache.PSAMS" })