Unsupported major.minor version 52.0异常

本文介绍在使用IDEA的JettyRunner插件启动Web项目时遇到Unsupportedmajor.minorversion52.0异常的原因及解决办法。异常源于JettyRunner要求的Java8与设置的Java7 JDK版本不匹配。

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最近全面转到IDEA开发,在用jetty runner插件启动Web项目的时候出现Unsupported major.minor version 52.0这个异常。Google之后发现这个异常一般出现于当你实际使用的jvm比你想运行的class版本更老时。于是我跑到IDEA的插件中看jetty runner的安装说明,其要求最低的jvm是Java 8,而我设置的IDEA的Java jdk为Java 7。恍然明白问题的症结所在了。
jetty runner插件安装说明

项目所使用jdk版本设置

其实异常信息中的版本数字就是运行所需要的jre版本,52即对应Java 8.
Java SE 9 = 53,
Java SE 8 = 52,
Java SE 7 = 51,
Java SE 6.0 = 50,
Java SE 5.0 = 49,
JDK 1.4 = 48,
JDK 1.3 = 47,
JDK 1.2 = 46,
JDK 1.1 = 45

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\BJJGSWGLJ\hd\wisdom-city-common\target\classes\com\louddt\asset\wisdom\entity\common\dict\Dict.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [E:\BJJGSWGLJ\hd\wisdom-city-common\target\classes\com\louddt\asset\wisdom\entity\common\dict\Dict.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 61 at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:452) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:315) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:132) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:296) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:250) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:207) ~[spring-context-5.2.12.RELEASE.jar:5.2.12.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationCl
最新发布
08-01
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