Reflection metadata missing in JSONPath lookup for application module identifiers on GraalVM

[ryleighmikami]

Hello team,

Just wanted to reach out with an issue.

I am trying to build a spring modulith application, as a native image.

Just to emphasize, this issue only happens when it is a native image.
A normal application runs fine.

When building the application as a native image through mvn -Pnative spring-boot:build-image the build is ok.

However, at run time, reproducible 100%, I can observe this issue:

Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'applicationModuleIdentifiers': Instantiation of supplied bean failed
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1263)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1200)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:569)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:529)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:373)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1222)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1188)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1123)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:987)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:627)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:753)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:318)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1362)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1351)
	at com.nvidia.nvtelemetry.event.EventApplication.main(EventApplication.java:10)
	at java.base@24.0.1/java.lang.invoke.LambdaForm$DMH/sa346b79c.invokeStaticInit(LambdaForm$DMH)
Caused by: org.springframework.modulith.runtime.jsonpath.InvalidPathException: Function of name: keys cannot be created
	at org.springframework.modulith.runtime.jsonpath.internal.function.PathFunctionFactory.newFunction(PathFunctionFactory.java:84)
	at org.springframework.modulith.runtime.jsonpath.internal.path.FunctionPathToken.evaluate(FunctionPathToken.java:39)
	at org.springframework.modulith.runtime.jsonpath.internal.path.RootPathToken.evaluate(RootPathToken.java:66)
	at org.springframework.modulith.runtime.jsonpath.internal.path.CompiledPath.evaluate(CompiledPath.java:99)
	at org.springframework.modulith.runtime.jsonpath.internal.path.CompiledPath.evaluate(CompiledPath.java:107)
	at org.springframework.modulith.runtime.jsonpath.JsonPath.read(JsonPath.java:179)
	at org.springframework.modulith.runtime.jsonpath.internal.JsonContext.read(JsonContext.java:88)
	at org.springframework.modulith.runtime.jsonpath.internal.JsonContext.read(JsonContext.java:77)
	at org.springframework.modulith.runtime.autoconfigure.ApplicationModuleMetadata$ResourceBasedApplicationModuleMetadata.getIdentifiers(ApplicationModuleMetadata.java:125)
	at org.springframework.modulith.runtime.autoconfigure.SpringModulithRuntimeAutoConfiguration.applicationModuleIdentifiers(SpringModulithRuntimeAutoConfiguration.java:118)
	at org.springframework.modulith.runtime.autoconfigure.SpringModulithRuntimeAutoConfiguration__BeanDefinitions.lambda$getApplicationModuleIdentifiersInstanceSupplier$0(SpringModulithRuntimeAutoConfiguration__BeanDefinitions.java:96)
	at org.springframework.util.function.ThrowingBiFunction.apply(ThrowingBiFunction.java:68)
	at org.springframework.util.function.ThrowingBiFunction.apply(ThrowingBiFunction.java:54)
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.lambda$get$2(BeanInstanceSupplier.java:225)
	at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:58)
	at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:46)
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.invokeBeanSupplier(BeanInstanceSupplier.java:258)
	at org.springframework.beans.factory.aot.BeanInstanceSupplier.get(BeanInstanceSupplier.java:225)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.obtainInstanceFromSupplier(DefaultListableBeanFactory.java:1031)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1257)
	... 20 more
Caused by: java.lang.InstantiationException: org.springframework.modulith.runtime.jsonpath.internal.function.json.KeySetFunction
	at java.base@24.0.1/java.lang.Class.newInstance(DynamicHub.java:705)
	at org.springframework.modulith.runtime.jsonpath.internal.function.PathFunctionFactory.newFunction(PathFunctionFactory.java:82)
	... 39 more
Caused by: java.lang.NoSuchMethodException: org.springframework.modulith.runtime.jsonpath.internal.function.json.KeySetFunction.<init>()
	at java.base@24.0.1/java.lang.Class.checkConstructor(DynamicHub.java:1189)
	at java.base@24.0.1/java.lang.Class.getConstructor0(DynamicHub.java:1386)
	at java.base@24.0.1/java.lang.Class.newInstance(DynamicHub.java:698)

Could you please provide guidance on this issue?

Does this repo needs to be registered / reported here? https://github.com/oracle/graalvm-reachability-metadata

Thank you for your time reading this.

Good day

[odrotbohm]

I think we can fix this by registering the necessary reflective metadata in our AOT processor. That said, I think it might make sense to report that to the JSONPath team, asking whether they'd be willing to replace the values of the function map declared in PathFunctionFactory with Supplier<PathFunctionFactory> declaring the constructor invocations explicitly, like () -> new KeySetFunction() and consuming the supplier instead. That would avoid the need for reflection entirely.

[odrotbohm]

I've created a ticket and pushed the registration of reflection hints as a temporary workaround. Would you mind trying 1.4.1-SNAPSHOT to see whether this resolves the problem?

[ryleighmikami]

Hello, I can confirm, with the version 1.4.1-SNAPSHOT, issue is fixed.

With version 1.4.0, issue persists.

Therefore, I would say the workaround works!

Would you like me to close this ticket (because there is a fix), or leave it opened to track the fix from json path, since I have my test case ready.

Up to you.

And of course, many thanks for looking into this!

[odrotbohm]

Thanks for the feedback. I just forward-ported the fix to main. 1.4.1 is scheduled for Friday.