Tekkit Java Problem linux debian

[Sezonk]

Hello Guys, i have a little Problem with my Tekkit Server, when I start the server, the error is

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.ClassLoader.loadClassInternal(ClassLoader.java:334)

    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

System:

Intel® Core™ i7-2600K Quad-Core

Ram 32GB

java version "1.6.0_18"

OpenJDK Runtime Environment (IcedTea6 1.8.13) (6b18-1.8.13-0+squeeze2)

OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)

I think is a java Problem, anyone can help me pls ?.

greetz

[darzavor]

Might want to use Java 7 instead of 6.

[pherce]

Yep, need java 7 for nether ores.

sudo apt-get install openjdk-7-jre

 

sudo update-alternatives --config java

Then select your 1.7 install.