java.lang.UnsupportedClassVersionError

Bad version number in .class file

Samebug tips4

Update "latest" to Java 8 on DockerHub.

This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default. You might upgrade java or use an older version of SonarQube.

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Solutions on the web4775

  • via Coderanch by Dave Alvarado, 7 months ago
    Bad version number in .class file
  • via Coderanch by Rajeev Ravindran, 11 months ago
    Bad version number in .class file
  • via Coderanch by Oczek Oczkowy, 9 months ago
    Bad version number in .class file
  • Stack trace

    • java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source)

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