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  1. ,
    Expert tip

    This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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

  2. ,
    Expert tip

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

Solutions on the web

via creadur-dev by Apache Jenkins Server, 2 years ago
Bad version number in .class file
via Jenkins JIRA by Stefan Strobel, 1 year ago
Bad version number in .class file
via creadur-dev by Apache Jenkins Server, 2 years ago
via creadur-dev by Apache Jenkins Server, 2 years ago
Bad version number in .class file
via creadur-dev by Apache Jenkins Server, 2 years ago
Bad version number in .class file
via creadur-dev by Apache Jenkins Server, 2 years ago
Bad version number in .class file
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 org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:386)	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)	at org.jvnet.hudson.maven3.agent.Maven3Main.main(Maven3Main.java:135)	at org.jvnet.hudson.maven3.agent.Maven3Main.main(Maven3Main.java:64)