Minecraft Crashes After 1-5 Minutes Of Playing.

Minecraft Crashes Every 1-5 Minutes When Played. This just started to happen and i want to know why it's happening. This happens when i'm playing on a Minecraft server, but i'm not sure if this happens in single player. I believe this is something with the Java Runtime Environment.
The Log File Is In The Attachments.

Things I've Done But Haven't Worked:
Reinstalled Minecraft
Reinstalled Java
Downgraded Java
Update Graphics Drivers
Restarted The Computer