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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    This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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 spigotmc.org by Unknown author, 1 year ago
java.lang.UnsupportedClassVersionError: org/signs/skywars/api/Start : Unsupported major.minor version 52.0
via spigotmc.org by Unknown author, 1 year ago
java.lang.UnsupportedClassVersionError: homepackage/homeplugin : Unsupported major.minor version 52.0
via GitHub by Block-Build
, 1 year ago
java.lang.UnsupportedClassVersionError: io/github/yannici/bedwars/Main : Unsupported major.minor version 52.0
via GitHub by st4ge000
, 4 months ago
java.lang.UnsupportedClassVersionError: net/dzikoysk/funnyguilds/FunnyGuilds : Unsupported major.minor version 52.0
via GitHub by yetshadow
, 2 years ago
java.lang.UnsupportedClassVersionError: com/j0ach1mmall3/ultimatecosmetics/Main : Unsupported major.minor version 52.0
via GitHub by LeonP-S
, 2 years ago
java.lang.UnsupportedClassVersionError: com/j0ach1mmall3/permissionsshop/Main : Unsupported major.minor version 52.0
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: org/signs/skywars/api/Start : Unsupported major.minor version 52.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:329)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:292)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:198)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at java.lang.Thread.run(Thread.java:745)[?:1.7.0_79]Caused by: java.lang.UnsupportedClassVersionError: org/signs/skywars/api/Start : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method)[?:1.7.0_79] at java.lang.ClassLoader.defineClass(ClassLoader.java:800)[?:1.7.0_79] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)[?:1.7.0_79] at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)[?:1.7.0_79] at java.net.URLClassLoader.access$100(URLClassLoader.java:71)[?:1.7.0_79] at java.net.URLClassLoader$1.run(URLClassLoader.java:361)[?:1.7.0_79] at java.net.URLClassLoader$1.run(URLClassLoader.java:355)[?:1.7.0_79] at java.security.AccessController.doPrivileged(Native Method)[?:1.7.0_79] at java.net.URLClassLoader.findClass(URLClassLoader.java:354)[?:1.7.0_79] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at java.lang.ClassLoader.loadClass(ClassLoader.java:425)[?:1.7.0_79] at java.lang.ClassLoader.loadClass(ClassLoader.java:358)[?:1.7.0_79] at java.lang.Class.forName0(Native Method)[?:1.7.0_79] at java.lang.Class.forName(Class.java:274)[?:1.7.0_79] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64)[spigot.jar:git-Spigot-e4d4710-e1ebe52] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131)[spigot.jar:git-Spigot-e4d4710-e1ebe52] ... 6 more