Crash

---- Minecraft Crash Report ----
// Sorry :(

Time: 1/10/15 12:12 PM
Description: Exception in server tick loop

java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Arrays.java:2734)
	at java.util.ArrayList.ensureCapacity(ArrayList.java:167)
	at java.util.ArrayList.add(ArrayList.java:351)
	at net.minecraft.util.AABBPool.getAABB(AABBPool.java:51)
	at net.minecraft.util.AxisAlignedBB.expand(AxisAlignedBB.java:111)
	at net.minecraft.world.World.getCollidingBoundingBoxes(World.java:1692)
	at net.minecraft.entity.player.EntityPlayerMP.<init>(EntityPlayerMP.java:187)
	at net.minecraft.server.management.ServerConfigurationManager.createPlayerForUser(ServerConfigurationManager.java:389)
	at net.minecraft.server.integrated.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:91)
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:691)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:587)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:129)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)


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

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Mac OS X (x86_64) version 10.9.5
	Java Version: 1.6.0_65, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 213677248 bytes (203 MB) / 2138767360 bytes (2039 MB) up to 2138767360 bytes (2039 MB)
	JVM Flags: 4 total; -Xincgc -Xmx2048M -Xms2048M -XX:PermSize=512m
	AABB Pool Size: 25764983 (1442839048 bytes; 1375 MB) allocated, 25764983 (1442839048 bytes; 1375 MB) used
	Suspicious classes: FML and Forge are installed
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	FML: MCP v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 11 mods loaded, 11 mods active
	mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	FML{6.4.49.965} [Forge Mod Loader] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Forge{9.11.1.965} [Minecraft Forge] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AppliedEnergistics-Core{rv14.finale3} [AppliedEnergistics Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	AppliedEnergistics{rv14.finale3} [Applied Energistics] (appeng-rv14-finale3-mc16x-2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	UniversalElectricity{3.1.0} [Universal Electricity] (Universal-Electricity-3.1.0.97-dev.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	SpaceAge{Alpha} [SpaceAge/Project Cosmos] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	SpaceAgePlanets{Alpha} [SpaceAge Planets] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	WarpDrive{1.2.0_ZLO} [WarpDrive - Universal Electricity] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	ServerMods{0.0.1} [ServerMods] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 628 (35168 bytes; 0 MB) allocated, 628 (35168 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'fml,forge'