java.lang.UnsupportedClassVersionError

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This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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

tip

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

tip

Update "latest" to Java 8 on DockerHub.

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You're using an older version of java with classes compiled for java7

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    • java.lang.UnsupportedClassVersionError: cn/lambdalib/core/LLCorePlugin : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method)[?:1.7.0] at java.lang.ClassLoader.defineClass(ClassLoader.java:791)[?:1.7.0] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)[?:1.7.0] at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)[?:1.7.0] at java.net.URLClassLoader.access$100(URLClassLoader.java:71)[?:1.7.0] at java.net.URLClassLoader$1.run(URLClassLoader.java:361)[?:1.7.0] at java.net.URLClassLoader$1.run(URLClassLoader.java:355)[?:1.7.0] at java.security.AccessController.doPrivileged(Native Method)[?:1.7.0] at java.net.URLClassLoader.findClass(URLClassLoader.java:354)[?:1.7.0] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:423)[?:1.7.0] at java.lang.ClassLoader.loadClass(ClassLoader.java:356)[?:1.7.0] at java.lang.Class.forName0(Native Method)[?:1.7.0] at java.lang.Class.forName(Class.java:264)[?:1.7.0] at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:414)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:225)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.FMLLaunchHandler.setupServer(FMLLaunchHandler.java:74)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForServerLaunch(FMLLaunchHandler.java:39)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.common.launcher.FMLServerTweaker.injectIntoClassLoader(FMLServerTweaker.java:23)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)[launchwrapper-1.12.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28)[launchwrapper-1.12.jar:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[?:1.7.0] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[?:1.7.0] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[?:1.7.0] at java.lang.reflect.Method.invoke(Method.java:601)[?:1.7.0] at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT] at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)[KCauldron-1.7.10-1614.201.jar:1.7.10-R0.1-SNAPSHOT]

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