/summon fireball crashes minecraft

Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 1/4/15 2:36 PM
Description: Ticking entity

java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.resize(Unknown Source)
at java.util.HashMap.addEntry(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at aqm.a(SourceFile:99)
at qu.a(SourceFile:850)
at ahl.a(SourceFile:34)
at ahj.t_(SourceFile:151)
at aqs.a(SourceFile:1407)
at qu.a(SourceFile:600)
at aqs.g(SourceFile:1385)
at aqs.i(SourceFile:1278)
at qu.i(SourceFile:478)
at net.minecraft.server.MinecraftServer.A(SourceFile:605)
at net.minecraft.server.MinecraftServer.z(SourceFile:533)
at cyk.z(SourceFile:152)
at net.minecraft.server.MinecraftServer.run(SourceFile:449)
at java.lang.Thread.run(Unknown Source)

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

– Head –
Stacktrace:
at java.util.HashMap.resize(Unknown Source)
at java.util.HashMap.addEntry(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at aqm.a(SourceFile:99)
at qu.a(SourceFile:850)
at ahl.a(SourceFile:34)
at ahj.t_(SourceFile:151)
at aqs.a(SourceFile:1407)
at qu.a(SourceFile:600)
at aqs.g(SourceFile:1385)

– Entity being ticked –
Details:
Entity Type: Fireball (ahl)
Entity ID: 761329
Entity Name: Fireball
Entity's Exact location: 753.47, 4.60, -1366.99
Entity's Block location: 753.00,4.00,-1367.00 - World: (753,4,-1367), Chunk: (at 1,0,9 in 47,-86; contains blocks 752,0,-1376 to 767,255,-1361), Region: (1,-3; contains chunks 32,-96 to 63,-65, blocks 512,0,-1536 to 1023,255,-1025)
Entity's Momentum: 0.97, -0.79, -0.24
Entity's Rider: ~_ERROR~ NullPointerException: null
Entity's Vehicle: ~_ERROR~ NullPointerException: null
Stacktrace:
at aqs.i(SourceFile:1278)
at qu.i(SourceFile:478)

– Affected level –
Details:
Level name: New World
All players: 1 total; [qx['caiusspiffy'/106, l='New World', x=745.43, y=4.29, z=-1365.92]]
Chunk stats: ServerChunkCache: 785 Drop: 0
Level seed: 2968541447909502883
Level generator: ID 01 - flat, ver 0. Features enabled: true
Level generator options: 2;7,2x3,2;1;village
Level spawn location: 559.00,4.00,-1384.00 - World: (559,4,-1384), Chunk: (at 15,0,8 in 34,-87; contains blocks 544,0,-1392 to 559,255,-1377), Region: (1,-3; contains chunks 32,-96 to 63,-65, blocks 512,0,-1536 to 1023,255,-1025)
Level time: 142254 game time, 10765 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 3476 (now: false), thunder time: 41250 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.A(SourceFile:605)
at net.minecraft.server.MinecraftServer.z(SourceFile:533)
at cyk.z(SourceFile:152)
at net.minecraft.server.MinecraftServer.run(SourceFile:449)
at java.lang.Thread.run(Unknown Source)

– System Details –
Details:
Minecraft Version: 1.8.2-pre1
Operating System: Windows 10 built 9879 (amd64) version 6.3
Java Version: 1.7.0_60, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 80051064 bytes (76 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [qx['caiusspiffy'/106, l='New World', x=745.43, y=4.29, z=-1365.92]]
Type: Integrated Server (map_client.txt)