---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 1/15/14 10:28 PM
Description: Exception in server tick loop

java.lang.OutOfMemoryError: Java heap space
	at java.lang.String.concat(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at qr.e(SourceFile:1040)
	at qr.d(SourceFile:1010)
	at apb.a(SourceFile:209)
	at apb.a(SourceFile:96)
	at ml.b(SourceFile:146)
	at ml.a(SourceFile:175)
	at mm.a(SourceFile:604)
	at net.minecraft.server.MinecraftServer.a(SourceFile:276)
	at net.minecraft.server.MinecraftServer.t(SourceFile:458)
	at btk.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:357)
	at lb.run(SourceFile:616)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.7.4
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 17776848 bytes (16 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 770957 (43173592 bytes; 41 MB) allocated, 9849 (551544 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1944 (108864 bytes; 0 MB) allocated, 1845 (103320 bytes; 0 MB) used
	Player Count: 1 / 8; [mp['robertbradley'/441, l='bunker', x=91.12, y=69.00, z=380.72]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.