Unsupported major.minor version 52.0
異常描述
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [spring/manager-impl.xml]; nested exception is java.lang.UnsupportedClassVersionError: javax/annotation/ManagedBean : Unsupported major.minor version 52.0 (unable to load class javax.annotation.ManagedBean)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:414)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:229)
Caused by: java.lang.UnsupportedClassVersionError: javax/annotation/ManagedBean : Unsupported major.minor version 52.0 (unable to load class javax.annotation.ManagedBean)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2961)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1210)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1690)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:249)
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.registerDefaultFilters(ClassPathScanningCandidateComponentProvider.java:243)
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.(ClassPathScanningCandidateComponentProvider.java:116)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.(ClassPathBeanDefinitionScanner.java:136)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.(ClassPathBeanDefinitionScanner.java:111)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.createScanner(ComponentScanBeanDefinitionParser.java:130)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.configureScanner(ComponentScanBeanDefinitionParser.java:100)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:86)
at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:74)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1427)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1417)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:174)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:144)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:100)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:510)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392)
異常背景
- 項目開發過程中本地調試正常，合併代碼發佈到開發環境，服務啓動異常
- 查看tomcat/log/localhost.log 發現上述異常
異常定位
- 從日誌報錯本身看Java版本衝突
- 且本地開發使用jdk1.8，開發環境部署服務使用jdk1.7
- 定位日誌提示的XML配置文件及加載不到的 javax/annotation/ManagedBean 沒有發現問題
- 對比此次提交的代碼與未發生問題時的新增代碼
- 發現A應用引用B應用的JAR包，B應用使用了JDK1.8，查看B應用的依賴，將 springboot-data-redis 等使用 jdk1.8 的依賴在A中的依賴中排除掉
- 問題解決