Kotlin data class serialization fails with GraalVM >= 22.1 #28167
Comments
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/cc @evanchooly, @geoand |
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Unfortunately I can't help much. My understanding is that kotlin tries to reflectively access the caller of the method and fails because reflection is not properly configured. Looking at the error I suspect that you need to register You might also want to run your application with the |
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Indeed error disappears if I add reflection config for the Companion object. |
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What does the entire |
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I guess one solution here would be to also automatically register the companion object for data classes. |
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Can you try doing: please? |
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Same result :( |
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Okay, thanks |
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Maybe it is somehow related to Kotlin/kotlinx.serialization#1348 but it really goes beyond my understanding of the compilation process :) More interesting to me is why it is working with some GraalVM versions. |
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In this case you are using Jackson, not Kotlin Serialization |
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True, but I'm using the compiler plugin which alters the compiled model object |
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I am pretty sure that if you remove |
Using newer mandrel image with
How could we do this automatically? |
Thanks for the update!
It would require a change in Quarkus |
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Also, fyi. I was testing with Quarkus |
Users have come to expect that @RegisterForReflection fixes a lot of native image issues and use it a lot. For Kotlin classes however, registering a class is often not enough - the companion classes are need to be registered. These companion classes are nested classes, so we automatically set the property to true for Kotlin classes Closes: quarkusio#28167
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#29033 should do the trick for automatically setting |
Automatically register nested Kotlin classes for reflection
Users have come to expect that @RegisterForReflection fixes a lot of native image issues and use it a lot. For Kotlin classes however, registering a class is often not enough - the companion classes are need to be registered. These companion classes are nested classes, so we automatically set the property to true for Kotlin classes Closes: quarkusio#28167 (cherry picked from commit 6274863)
Users have come to expect that @RegisterForReflection fixes a lot of native image issues and use it a lot. For Kotlin classes however, registering a class is often not enough - the companion classes are need to be registered. These companion classes are nested classes, so we automatically set the property to true for Kotlin classes Closes: quarkusio#28167
Describe the bug
I'm trying to serialize a Kotlin data class with kotlinx.serialization annotations.
Everything is working as expected with GraalVM 22.0 but starts throwing errors with 22.1 and 22.2.
Data class:
Expected behavior
No error
Actual behavior
Error during serialization.
Stacktrace:
How to Reproduce?
No response
Output of
uname -aorverNo response
Output of
java -version17.0.4+8-jvmci-22.2-b06
GraalVM version (if different from Java)
GraalVM 22.2.0 Java 17 CE
Quarkus version or git rev
2.13.0.Final
Build tool (ie. output of
mvnw --versionorgradlew --version)mvn
Additional information
No response
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