Hopper: java.lang.OutOfMemoryError: Java heap space

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-441651/

Crash:

java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 22/10/13 16:53
Description: Exception in server tick loop

java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Unknown Source)
	at sun.misc.IOUtils.readFully(Unknown Source)
	at java.util.jar.JarFile.getBytes(Unknown Source)
	at java.util.jar.JarFile.getManifestFromReference(Unknown Source)
	at java.util.jar.JarFile.getInputStream(Unknown Source)
	at sun.misc.URLClassPath$JarLoader$2.getInputStream(Unknown Source)
	at sun.misc.Resource.cachedInputStream(Unknown Source)
	at sun.misc.Resource.getByteBuffer(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at net.minecraft.server.MinecraftServer.t(SourceFile:445)
	at bsi.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kx.run(SourceFile:617)


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

-- System Details --
Details:
	Minecraft Version: 1.7
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 18725336 bytes (17 MB) / 92209152 bytes (87 MB) up to 93257728 bytes (88 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx100M
	AABB Pool Size: 2525 (141400 bytes; 0 MB) allocated, 2525 (141400 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 6532 (365792 bytes; 0 MB) allocated, 6532 (365792 bytes; 0 MB) used
	Player Count: 1 / 8; [ml['KistsjinHD'/282, l='New World', x=276.01, y=63.00, z=85.79]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-441651/20580911/