setting up a minecraft server(help needed)(fedora)

[shadowkiller210]

ok so i run the jar file and the server program starts but this is what it displays, could somebody help please

[info] starting minecraft server version beta 1.6.6
[info] loading properties
[info]starting minecraft server on *:25565
[severe] Unexpected exception
java.lang.NoSuchMethodError: method
java.net.serversockect.setperformancepreferences with signature (III)v was not 
found.
  at cs.<init>(sourcefile:29)
  at net.minecraft.server.Minecraftserver.c(sourcefile:130)
  at net.minecraft.server.minecraftserver.rin(sourcefile:284)
  at bo.run(sourcefile:422)

[doggyrpg]

Remake the world. Trust me, happened to me a few times too! Either that or update your Java :3

[shadowkiller210]

Remake the world. Trust me, happened to me a few times too! Either that or update your Java :3

it must be my java then because i haven't even gotten far enough to it create a world for me