AbstractRecursiveAnnotationVisitor can't access a package protected enum value [SPR-15442]

[spring-projects-issues]

Stéphane Nicoll opened SPR-15442 and commented

This issue popped up all the sudden on boot master:

java.lang.IllegalAccessException: Class org.springframework.core.type.classreading.AbstractRecursiveAnnotationVisitor can not access a member of class org.springframework.boot.test.autoconfigure.properties.AnnotationsPropertySourceTests$EnumItem with modifiers "public static final"
	at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:102) ~[na:1.8.0_121]
	at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:296) ~[na:1.8.0_121]
	at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:288) ~[na:1.8.0_121]
	at java.lang.reflect.Field.get(Field.java:390) ~[na:1.8.0_121]
	at org.springframework.core.type.classreading.AbstractRecursiveAnnotationVisitor.getEnumValue(AbstractRecursiveAnnotationVisitor.java:83) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.core.type.classreading.AbstractRecursiveAnnotationVisitor.visitEnum(AbstractRecursiveAnnotationVisitor.java:73) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.asm.ClassReader.readAnnotationValue(ClassReader.java:1936) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.asm.ClassReader.readAnnotationValues(ClassReader.java:1861) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.asm.ClassReader.accept(ClassReader.java:657) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.asm.ClassReader.accept(ClassReader.java:523) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:64) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:121) [spring-core-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:411) [spring-context-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:295) [spring-context-5.0.0.BUILD-20170411.214407-103.jar:5.0.0.BUILD-SNAPSHOT]

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Affects: 4.3.7

Referenced from: commits 4838f06, 40232f4, 093e573