java.lang.UnsupportedClassVersionError: Bad version number in .class file         at java.lang.ClassLoader.defineClass2(Native Method)          at java.lang.ClassLoader.defineClass(ClassLoader.java:719)    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:160)                          at java.net.URLClassLoader.defineClass(URLClassLoader.java:254)                                     at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195)    

jstock | atorrey | 7 years ago
  1. 0

    Site needs installation instructions

    jstock | 7 years ago | atorrey
    java.lang.UnsupportedClassVersionError: Bad version number in .class file         at java.lang.ClassLoader.defineClass2(Native Method)          at java.lang.ClassLoader.defineClass(ClassLoader.java:719)    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:160)                          at java.net.URLClassLoader.defineClass(URLClassLoader.java:254)                                     at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195)    
  2. 0

    Compatible?

    Google Groups | 5 months ago | Dinesh
    java.lang.UnsupportedClassVersionError: org/sonar/api/utils/SonarException : Unsupported major.minor version 52.0
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  4. 0

    UnsupportedClassVersionError with SonarQube Ant Task after Update to 5.1.1

    Stack Overflow | 1 year ago | Matthias
    java.lang.UnsupportedClassVersionError: org/sonar/api/utils/SonarException : Unsupported major.minor version 51.0
  5. 0

    Could not load 'plugins/mcore.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException

    GitHub | 3 years ago | Myrkwell
    org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0

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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      Bad version number in .class file         at java.lang.ClassLoader.defineClass2(Native Method)          at java.lang.ClassLoader.defineClass(ClassLoader.java:719)    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:160)                          at java.net.URLClassLoader.defineClass(URLClassLoader.java:254)                                     at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195)    

      at java.security.AccessController.doPrivileged()
    2. Java RT
      URLClassLoader.findClass
      1. java.security.AccessController.doPrivileged(Native Method)
      2. java.net.URLClassLoader.findClass(URLClassLoader.java:188)
      2 frames