java.lang.UnsupportedClassVersionError

Bad version number in .class file

Samebug tips4

This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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.


rafaelrafael

If you're using intellij plugin of sonarqube, you might have to set the JAVA_HOME ambient variable manually.


rafaelrafael

Don't give up yet. Our experts can help. Paste your full stack trace to get a solution.

Solutions on the web3050

  • via Unknown by Ludovic Meurillon,
  • via Unknown by Ludovic Meurillon,
  • Stack trace

    • java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(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 winstone.classLoader.WebappClassLoader.loadClass(WebappClassLoader.java:68) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at hudson.security.PermissionScope.<init>(PermissionScope.java:70) at hudson.security.PermissionScope.<clinit>(PermissionScope.java:95) at hudson.security.Permission.<init>(Permission.java:179) at hudson.security.Permission.<clinit>(Permission.java:292) at jenkins.model.Jenkins.<clinit>(Jenkins.java:3817) at hudson.WebAppMain.installLogger(WebAppMain.java:256) at hudson.WebAppMain.contextInitialized(WebAppMain.java:107) at winstone.WebAppConfiguration.<init>(WebAppConfiguration.java:875) at winstone.HostConfiguration.initWebApp(HostConfiguration.java:129) at winstone.HostConfiguration.<init>(HostConfiguration.java:71) at winstone.HostGroup.initHost(HostGroup.java:87) at winstone.HostGroup.<init>(HostGroup.java:47) at winstone.Launcher.<init>(Launcher.java:177) at winstone.Launcher.main(Launcher.java:384) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at Main._main(Main.java:273) at Main.main(Main.java:98)

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