Missing resource hint for `BeanRegistrar` implementing `ImportAware`

[saber-wang]

Cause:
The generated AOT code uses CachingMetadataReaderFactory to read class files from resource files, but these files are not available in the native image context.

[sdeleuze]

Please provide a standalone reproducer, either via a link to a repository or as an archive attached to this issue.

[saber-wang]

@sdeleuze
https://github.com/saber-wang/beanRegistrarTest
Using ./gradlew nativeRun will throw a java.io.FileNotFoundException exception.

Application run failed
java.lang.IllegalStateException: Failed to read metadata for 'beanregistrartest.BeanRegistrarTestApplication'
	at beanregistrartest.BeanRegistrarTestApplication__ApplicationContextInitializer.applyBeanRegistrars(BeanRegistrarTestApplication__ApplicationContextInitializer.java:48)
	at beanregistrartest.BeanRegistrarTestApplication__ApplicationContextInitializer.initialize(BeanRegistrarTestApplication__ApplicationContextInitializer.java:33)
	at beanregistrartest.BeanRegistrarTestApplication__ApplicationContextInitializer.initialize(BeanRegistrarTestApplication__ApplicationContextInitializer.java:26)
	at org.springframework.context.aot.AotApplicationContextInitializer.initialize(AotApplicationContextInitializer.java:72)
	at org.springframework.context.aot.AotApplicationContextInitializer.lambda$forInitializerClasses$0(AotApplicationContextInitializer.java:61)
	at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:623)
	at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:386)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1365)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354)
	at beanregistrartest.BeanRegistrarTestApplication.main(BeanRegistrarTestApplication.java:17)
	at java.base@25/java.lang.invoke.LambdaForm$DMH/sa346b79c.invokeStaticInit(LambdaForm$DMH)
Caused by: java.io.FileNotFoundException: class path resource [beanregistrartest/BeanRegistrarTestApplication.class] cannot be opened because it does not exist
	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:212)
	at org.springframework.core.type.classreading.ClassFileMetadataReader.parseClassModel(ClassFileMetadataReader.java:49)
	at org.springframework.core.type.classreading.ClassFileMetadataReader.<init>(ClassFileMetadataReader.java:45)
	at org.springframework.core.type.classreading.ClassFileMetadataReaderFactory.getMetadataReader(ClassFileMetadataReaderFactory.java:62)
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:127)
	at org.springframework.core.type.classreading.AbstractMetadataReaderFactory.getMetadataReader(AbstractMetadataReaderFactory.java:62)
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:40)
	at beanregistrartest.BeanRegistrarTestApplication__ApplicationContextInitializer.applyBeanRegistrars(BeanRegistrarTestApplication__ApplicationContextInitializer.java:46)
	... 11 more

[bclozel]

https://github.com/saber-wang/beanRegistrarTest

@saber-wang this is a 404, we can't see it.

[saber-wang]

@bclozel Sorry, it's all set now. 😬