MAVEN 错误Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/ma ven/cli/Mav_maven exception in thread "main" java.lang.unsuppo-优快云博客

文章详细介绍了在使用最新版Apache Maven 3.3.3时遇到JDK版本不匹配的问题，并提供了解决方案。主要原因是Maven 3.3.3要求JDK版本为1.7及以上，通过升级JDK版本即可解决。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

在最新版的apache-maven-3.3.3中，解压设置好环境变量后执行mvn 时报错如下：

C:\Users\Administrator>mvn

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/ma
ven/cli/MavenCli : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
1)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(Cl
assRealm.java:401)
at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(
SelfFirstStrategy.java:42)
at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadCl
ass(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(Launch
er.java:144)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:266)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
356)

经查，此问题是由于JDK版本过低导致，最新的MAVEN 3.3.3 必须由JDK1.7以上支持，

安装JDK1.7即可