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  • Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : U

    1、错误描述

    Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0
    	at java.lang.ClassLoader.defineClass1(Native Method)
    	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
    	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
    	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
    	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
    	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
    	at java.security.AccessController.doPrivileged(Native Method)
    	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
    	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
    	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
    	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:254)
    	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
    	at org.codehaus.plexus.classworlds.launcher.Launcher.getMainClass(Launcher.java:144)
    	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:266)
    	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
    	at org.codehaus.classworlds.Launcher.main(Launcher.java:47)

    2、错误原因

         major.minor version 51.0需要jdk1.7,major.minor version 50.0需要jdk1.6,项目中major.minor version 51.0却用的是jdk1.6,出现错误


    3、解决办法

    (1)修改jdk版本,将其改为jdk1.7

    (2)降低Maven版本,改为Maven3.2.3

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13313952.html
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