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  1. ,
    via Stack Overflow by ERJAN

    This exception occurs when using an older version of java. Mainly when trying to run a jar compiled with a newer Java version in an older Java version. We can avoid this issue by executing the jar in the same version which it was compiled.

  2. ,
    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    This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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.

Solutions on the web

via GitHub by coelho
, 1 year ago
This exception has no message.
via Stack Overflow by neu242
, 2 years ago
java.lang.UnsupportedClassVersionError: com/vladsch/idea/multimarkdown/settings/LicensingStateChanged : Unsupported major.minor version 52.0	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)	at java.lang.ClassLoader.defineClass(ClassLoader.java:471)	at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:260)	at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:256)	at com.intellij.util.lang.UrlClassLoader._findClass(UrlClassLoader.java:225)	at com.intellij.ide.plugins.cl.PluginClassLoader.a(PluginClassLoader.java:124)	at com.intellij.ide.plugins.cl.PluginClassLoader.a(PluginClassLoader.java:77)	at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:66)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at com.vladsch.idea.multimarkdown.MultiMarkdownPlugin.(MultiMarkdownPlugin.kt:555)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:249)	at com.intellij.openapi.components.impl.ComponentManagerImpl.a(ComponentManagerImpl.java:408)	at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:96)	at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:455)	at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:447)	at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:194)	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:597)	at com.intellij.idea.MainImpl$1$1$1.run(MainImpl.java:60)	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:715)	at java.awt.EventQueue.access$400(EventQueue.java:82)	at java.awt.EventQueue$2.run(EventQueue.java:676)	at java.awt.EventQueue$2.run(EventQueue.java:674)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:685)	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:361)	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)