org.springframework.core.annotation.AnnotationConfigurationException: Attribute 'proxyBeanMethods' in annotation [org.springframework.boot.autoconfigure.SpringBootApplication] is declared as an @AliasFor nonexistent attribute 'proxyBeanMethods' in annotation [org.springframework.context.annotation.Configuration]. at org.springframework.core.annotation.AnnotationTypeMapping.resolveAliasTarget(AnnotationTypeMapping.java:163) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMapping.resolveAliasTarget(AnnotationTypeMapping.java:134) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMapping.resolveAliasedForTargets(AnnotationTypeMapping.java:126) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMapping.<init>(AnnotationTypeMapping.java:103) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.addIfPossible(AnnotationTypeMappings.java:109) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.addAllMappings(AnnotationTypeMappings.java:68) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.<init>(AnnotationTypeMappings.java:61) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.<init>(AnnotationTypeMappings.java:46) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings$Cache.createMappings(AnnotationTypeMappings.java:217) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at java.base/java.util.concurrent.ConcurrentMap.computeIfAbsent(ConcurrentMap.java:330) ~[na:na] at org.springframework.core.annotation.AnnotationTypeMappings$Cache.get(AnnotationTypeMappings.java:213) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.forAnnotationType(AnnotationTypeMappings.java:181) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationTypeMappings.forAnnotationType(AnnotationTypeMappings.java:168) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.TypeMappedAnnotations$IsPresent.doWithAnnotations(TypeMappedAnnotations.java:330) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.TypeMappedAnnotations$IsPresent.doWithAnnotations(TypeMappedAnnotations.java:279) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.processClassHierarchy(AnnotationsScanner.java:211) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.processClassHierarchy(AnnotationsScanner.java:194) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.processClass(AnnotationsScanner.java:128) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.process(AnnotationsScanner.java:107) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.scan(AnnotationsScanner.java:97) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.AnnotationsScanner.scan(AnnotationsScanner.java:78) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.TypeMappedAnnotations.scan(TypeMappedAnnotations.java:242) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE] at org.springframework.core.annotation.TypeMappedAnnotations.isPresent(TypeMappedAnnotations.java:98) ~[spring-core-5.2.0.RC2.jar:5.1.2.RELEASE]
報錯日志如上。
看日志是@SpringBootApplication注解里的一個屬性proxyBeanMethods在@Configuration未找到。我到代碼里查了一下，發現確實在目前依賴的Configuration.CLASS方法里未找到該方法。
因此猜測是現在使用的對應jar包有問題。
這次排查問題，我突然想到是否可以去github上查一下是否有人也遇到過。因為springboot在github上是開源的。地址https://github.com/spring-projects/spring-boot
結果我真的在該倉庫的issue里查到了歷史消息。
看歷史消息，其中有個印度小哥似乎意識到是jar包問題，但是升級jar包沒有效果。結果被提醒該類在spring-context里。主要是看這個jar。
然后我就專門看了下自己的現在依賴的該包。把它升級到了5.2.3就解決了這個報錯。