2012-10-30 16:31:27 [SEVERE] org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/PorterK/JukeboxRotate/JukeBox : Unsupported major.minor version 51.0
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:154)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
2012-10-30 16:31:27 [SEVERE] 	at net.skycraftmc.PluginManager.PluginControl.loadPlugin(PluginControl.java:72)
2012-10-30 16:31:27 [SEVERE] 	at net.skycraftmc.PluginManager.PluginManagerPlugin.onCommand(PluginManagerPlugin.java:232)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:502)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:915)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:828)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:810)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.NetworkManager.b(NetworkManager.java:282)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:111)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.ServerConnection.b(SourceFile:35)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:561)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
2012-10-30 16:31:27 [SEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-10-30 16:31:27 [SEVERE] Caused by: java.lang.UnsupportedClassVersionError: me/PorterK/JukeboxRotate/JukeBox : Unsupported major.minor version 51.0
2012-10-30 16:31:27 [SEVERE] 	at java.lang.ClassLoader.defineClass1(Native Method)
2012-10-30 16:31:27 [SEVERE] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
2012-10-30 16:31:27 [SEVERE] 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
2012-10-30 16:31:27 [SEVERE] 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
2012-10-30 16:31:27 [SEVERE] 	at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
2012-10-30 16:31:27 [SEVERE] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
2012-10-30 16:31:27 [SEVERE] 	at java.security.AccessController.doPrivileged(Native Method)
2012-10-30 16:31:27 [SEVERE] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:44)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
2012-10-30 16:31:27 [SEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
2012-10-30 16:31:27 [SEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
2012-10-30 16:31:27 [SEVERE] 	at java.lang.Class.forName0(Native Method)
2012-10-30 16:31:27 [SEVERE] 	at java.lang.Class.forName(Class.java:264)
2012-10-30 16:31:27 [SEVERE] 	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:143)
2012-10-30 16:31:27 [SEVERE] 	... 19 more