15:32:23 [INFO] Starting minecraft server version Beta 1.3
15:32:23 [INFO] Loading properties
15:32:23 [INFO] Starting Minecraft server on *:25566
15:32:23 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-513-gc01392c-b528jnks (MC: 1.3)
15:32:23 [INFO] Preparing level "world"
15:32:23 [INFO] Preparing start region
15:32:23 [SEVERE] java.lang.ExceptionInInitializerError
15:32:23 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:246)
15:32:23 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)
15:32:23 [SEVERE]       at java.lang.Thread.threadProc(Thread.java:2297)
15:32:23 [SEVERE]       at java.lang.Thread$1.Invoke(Thread.java:796)
15:32:23 [SEVERE] Caused by: java.lang.NullPointerException
15:32:23 [SEVERE]       at net.minecraft.server.Item.<clinit>(SourceFile:57)
15:32:23 [SEVERE]       ... 4 more
15:32:23 [SEVERE] Unexpected exception
java.lang.ExceptionInInitializerError
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:246)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)
        at java.lang.Thread.threadProc(Thread.java:2297)
        at java.lang.Thread$1.Invoke(Thread.java:796)
Caused by: java.lang.NullPointerException
        at net.minecraft.server.Item.<clinit>(SourceFile:57)