mod_NetherOres Crashes server

[Logan Saso]

Title: mod_NetherOres Crashes server

Version: 3.1.2

OS: Linnux Gnu, Dedicated server.

Java Version: java 7

Description of Problem:

This basically just automatically crashes the server when I start it. I know this is the only problem because when I delete it the server works fine. It tells me that it is loading the mods from the directory and the crashes with this message.

Error Messages:

at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

at cpw.mods.fml.common.Loader.load(Loader.java:419)

... 5 more

Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:264)

at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

Error Log:

class net.minecraft.server.mod_RedPowerCore found, loading

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_RedPowerCore loaded

2012-09-07 20:08:42 [FINE] Failed to find mcmod.info file in redpower-all-2.0p5b2-mcpc1.2.5-r15.zip for mod_RedPowerCore

2012-09-07 20:08:42 [FINE] Mod class net.minecraft.server.mod_RedPowerCore loaded successfully

2012-09-07 20:08:42 [FINE] Found a mod class net.minecraft.server.mod_RedPowerMachine in file redpower-all-2.0p5b2-mcpc1.2.5-r15.zip, attempting to load it

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_RedPowerMachine found, loading

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_RedPowerMachine loaded

2012-09-07 20:08:42 [FINE] Failed to find mcmod.info file in redpower-all-2.0p5b2-mcpc1.2.5-r15.zip for mod_RedPowerMachine

2012-09-07 20:08:42 [FINE] Mod class net.minecraft.server.mod_RedPowerMachine loaded successfully

2012-09-07 20:08:42 [FINE] Found a mod class net.minecraft.server.mod_RedPowerWorld in file redpower-all-2.0p5b2-mcpc1.2.5-r15.zip, attempting to load it

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_RedPowerWorld found, loading

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_RedPowerWorld loaded

2012-09-07 20:08:42 [FINE] Failed to find mcmod.info file in redpower-all-2.0p5b2-mcpc1.2.5-r15.zip for mod_RedPowerWorld

2012-09-07 20:08:42 [FINE] Mod class net.minecraft.server.mod_RedPowerWorld loaded successfully

2012-09-07 20:08:42 [FINE] File redpower-all-2.0p5b2-mcpc1.2.5-r15.zip loaded successfully

2012-09-07 20:08:42 [FINE] Found a zip or jar file tubestuff_49.1.2_for_1.2.5-bukkit.jar, attempting to load it

2012-09-07 20:08:42 [FINE] Found a mod class net.minecraft.server.mod_TubeStuff in file tubestuff_49.1.2_for_1.2.5-bukkit.jar, attempting to load it

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_TubeStuff found, loading

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_TubeStuff loaded

2012-09-07 20:08:42 [FINE] Failed to find mcmod.info file in tubestuff_49.1.2_for_1.2.5-bukkit.jar for mod_TubeStuff

2012-09-07 20:08:42 [FINE] Mod class net.minecraft.server.mod_TubeStuff loaded successfully

2012-09-07 20:08:42 [FINE] File tubestuff_49.1.2_for_1.2.5-bukkit.jar loaded successfully

2012-09-07 20:08:42 [FINE] Found a directory weaponmod, attempting to load it

2012-09-07 20:08:42 [iNFO] Directory weaponmod contained no mods

2012-09-07 20:08:42 [FINE] Found a zip or jar file zdimensional-anchor_rev3.2_for_1.2.5-bukkit.jar, attempting to load it

2012-09-07 20:08:42 [FINE] Found a mod class net.minecraft.server.mod_ImmiChunkLoaders in file zdimensional-anchor_rev3.2_for_1.2.5-bukkit.jar, attempting to load it

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_ImmiChunkLoaders found, loading

2012-09-07 20:08:42 [FINE] ModLoader BaseMod class net.minecraft.server.mod_ImmiChunkLoaders loaded

2012-09-07 20:08:42 [FINE] Failed to find mcmod.info file in zdimensional-anchor_rev3.2_for_1.2.5-bukkit.jar for mod_ImmiChunkLoaders

2012-09-07 20:08:42 [FINE] Mod class net.minecraft.server.mod_ImmiChunkLoaders loaded successfully

2012-09-07 20:08:42 [FINE] File zdimensional-anchor_rev3.2_for_1.2.5-bukkit.jar loaded successfully

2012-09-07 20:08:42 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory

2012-09-07 20:08:42 [sEVERE] cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.load(Loader.java:436)

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

2012-09-07 20:08:42 [sEVERE] 	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

2012-09-07 20:08:42 [sEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

2012-09-07 20:08:42 [sEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-09-07 20:08:42 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.load(Loader.java:419)

2012-09-07 20:08:42 [sEVERE] 	... 5 more

2012-09-07 20:08:42 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

2012-09-07 20:08:42 [sEVERE] 	at java.lang.ClassLoader.defineClass1(Native Method)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

2012-09-07 20:08:42 [sEVERE] 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2012-09-07 20:08:42 [sEVERE] 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

2012-09-07 20:08:42 [sEVERE] 	at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

2012-09-07 20:08:42 [sEVERE] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

2012-09-07 20:08:42 [sEVERE] 	at java.security.AccessController.doPrivileged(Native Method)

2012-09-07 20:08:42 [sEVERE] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

2012-09-07 20:08:42 [sEVERE] 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.Class.forName0(Native Method)

2012-09-07 20:08:42 [sEVERE] 	at java.lang.Class.forName(Class.java:264)

2012-09-07 20:08:42 [sEVERE] 	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

2012-09-07 20:08:42 [sEVERE] 	... 7 more

2012-09-07 20:08:42 [sEVERE] Unexpected exception

cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

	at cpw.mods.fml.common.Loader.load(Loader.java:436)

	at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

	at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

	at cpw.mods.fml.common.Loader.load(Loader.java:419)

	... 5 more

Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

	at java.lang.ClassLoader.defineClass1(Native Method)

	at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

	at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

	at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

	at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

	at java.security.AccessController.doPrivileged(Native Method)

	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

	at java.lang.Class.forName0(Native Method)

	at java.lang.Class.forName(Class.java:264)

	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

	... 7 more

2012-09-07 20:08:49 [iNFO] Stopping server

2012-09-07 20:08:49 [sEVERE] Exception in thread "Thread-3" 

2012-09-07 20:08:49 [sEVERE] java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

2012-09-07 20:08:49 [sEVERE] 	at java.util.ArrayList.rangeCheck(ArrayList.java:571)

2012-09-07 20:08:49 [sEVERE] 	at java.util.ArrayList.get(ArrayList.java:349)

2012-09-07 20:08:49 [sEVERE] 	at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:424)

2012-09-07 20:08:49 [sEVERE] 	at org.bukkit.craftbukkit.util.ServerShutdownThread.run(ServerShutdownThread.java:14)

[Guinauruloki]

From the Nether Ores page of the Tekkit wiki:

This mod has been reported to cause servers to crash at startup, therefore, some servers may not have the mod installed. This occurs because the mod was compiled with JDK 7. Install Java 7 if you want to use this mod for your server.

As I was having the same issue, I looked into what Java version my server was running; Java 6 Update 31. I downloaded and installed Java 7 Update 7 and the problem has been resolved.