[MC-5595] Minecraft Stopped Running due to exception generating new Chunk

Earlier on today i was making a new map with mcedit, after the completion of the map i saved it and checked if it worked in Minecraft itself, which it did after a few hour i tried again and no matter what world i load or create it gives me this error.
Only mods are Optifine and world downloader both up to date
And where it says my Os is Windows 7 (amd64) it isnt.
And everytime when i try to assign more memory on vanilla and modded, there is no affect and remains at 1gb

Attachments

crash-2012-12-31_18.27.36-server.txt

Comments 2

kumasasa 2012-12-31T07:55:25Z

Assign more memory to the Java VM:

java.lang.OutOfMemoryError: Java heap space

but

This ticket is invalid as it relates to a modded or 3rd party client/server.

Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft

kumasasa 2012-12-31T08:05:51Z

And where it says my Os is Windows 7 (amd64) it isnt.

What should it be instead of Windows 7 (amd64) ?

And everytime when i try to assign more memory on vanilla and modded, there is no affect and remains at 1gb

Then you're doing it wrong.

Start it with

java -Xmx1g -Xms512M -cp Minecraft.exe net.minecraft.LauncherFrame

and put for -Xmx1g the amount of memory you want.