NetherOres crashing my server

[gondus]

Title: NetherOres crashing my server

Version: 3.0.3/3.0.4

OS: Ubuntu 11.10

Java Version: openjdk 7

Description of Problem:

Server Runs only when mod_netherores.jar is removed.

Error Messages:

[sEVERE] java.lang.UnsupportedClassVersionError:net/minecraft/server/mod_NetherOres Unsupported major.minor version 51.0

Error Log:

20:31:34 [iNFO] Loading mods from /opt/tekkit/mods

20:31:34 [sEVERE] java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsuppo                                rted major.minor version 51.0

20:31:34 [sEVERE]       at java.lang.ClassLoader.defineClass1(Native Method)

20:31:34 [sEVERE]       at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

20:31:34 [sEVERE]       at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

20:31:34 [sEVERE]       at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

20:31:34 [sEVERE]       at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

20:31:34 [sEVERE]       at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

20:31:34 [sEVERE]       at java.security.AccessController.doPrivileged(Native Method)

20:31:34 [sEVERE]       at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

20:31:34 [sEVERE]       at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

20:31:34 [sEVERE]       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

20:31:34 [sEVERE]       at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

20:31:34 [sEVERE]       at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

20:31:34 [sEVERE]       at java.lang.Class.forName0(Native Method)

20:31:34 [sEVERE]       at java.lang.Class.forName(Class.java:264)

20:31:34 [sEVERE]       at cpw.mods.fml.common.Loader.loadModClass(Loader.java:440)

20:31:34 [sEVERE]       at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497)

20:31:34 [sEVERE]       at cpw.mods.fml.common.Loader.load(Loader.java:375)

20:31:34 [sEVERE]       at cpw.mods.fml.common.Loader.loadMods(Loader.java:527)

20:31:34 [sEVERE]       at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

20:31:34 [sEVERE]       at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

20:31:34 [sEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

20:31:34 [sEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

20:31:34 [sEVERE] Unexpected exception

java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor v                                ersion 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:440)

        at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497)

        at cpw.mods.fml.common.Loader.load(Loader.java:375)

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

        at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

        at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

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

>

20:34:18 [iNFO] Stopping server

20:34:18 [sEVERE] java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

20:34:18 [sEVERE]       at java.util.ArrayList.rangeCheck(ArrayList.java:571)

20:34:18 [sEVERE]       at java.util.ArrayList.get(ArrayList.java:349)

20:34:18 [sEVERE]       at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:412)

20:34:18 [sEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:483)

20:34:18 [sEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

[Mobius One]

Try 64 bit java 7, doesn't work with 32 for some reason, i just had the same problem. Don't know how this will affect Linux users though.

[prasselpikachu]

Happens to me too, problem is that there only is a 32 bit version of openjdk...