Minecraft Crash Report

[14:31:07] [Client thread/INFO]: Setting user: JalenaMay20
[14:31:07] [Client thread/INFO]: (Session ID is token:d5a7e27d212945969259d9b09d40a228:8b66447ae7fd4c2ebbae527479497e56)
[14:31:09] [Client thread/INFO]: LWJGL Version: 2.9.4
[14:31:09] [Client thread/INFO]: Reloading ResourceManager: Default, PureBDcraft 512x MC18.zip
[14:31:12] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:31:12] [Thread-6/INFO]: Initializing LWJGL OpenAL
[14:31:12] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[14:31:12] [Thread-6/INFO]: OpenAL initialized.
[14:31:12] [Sound Library Loader/INFO]: Sound engine started

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

Time: 7/23/15 2:31 PM
Description: Initializing game

java.lang.OutOfMemoryError: Java heap space
at bmi.a(SourceFile:363)
at bmi.a(SourceFile:263)
at bmh.b(SourceFile:130)
at bmh.a(SourceFile:77)
at bot.j(SourceFile:553)
at bot.a(SourceFile:139)
at bou.a(SourceFile:23)
at bnn.a(SourceFile:99)
at ave.am(SourceFile:448)
at ave.a(SourceFile:310)
at net.minecraft.client.main.Main.main(SourceFile:124)

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

– Head –
Stacktrace:
at bmi.a(SourceFile:363)
at bmi.a(SourceFile:263)
at bmh.b(SourceFile:130)
at bmh.a(SourceFile:77)
at bot.j(SourceFile:553)
at bot.a(SourceFile:139)
at bou.a(SourceFile:23)
at bnn.a(SourceFile:99)
at ave.am(SourceFile:448)

– Initialization –
Details:
Stacktrace:
at ave.a(SourceFile:310)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.8.7
Operating System: Windows 8.1 (x86) version 6.3
CPU: 8x Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 135881976 bytes (129 MB) / 523501568 bytes (499 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.8.7
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics 4000 GL version 4.0.0 - Build 10.18.10.3345, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [PureBDcraft 512x MC18.zip]
Current Language: English (UK)
Profiler Position: N/A (disabled)
#@

Crash report saved to: #@!@# C:\Users\Scott\AppData\Roaming\.minecraft\crash-reports\crash-2015-07-23_14.31.20-client.txt
[14:31:20] [Client Shutdown Thread/INFO]: Stopping server
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...