report is pasted below

/ Sorry 😞
/Users/marcoprosperefreelander/Library/Application Support/minecraft/crash-reports/crash-2016-04-02_14.56.27-client.txt
Time: 4/2/16 2:56 PM
Description: Initializing game

java.lang.OutOfMemoryError: Java heap space
at bvh.a(SourceFile:223)
at bvg.a(SourceFile:190)
at bvg.b(SourceFile:149)
at bvg.a(SourceFile:76)
at bxr.m(SourceFile:727)
at bxr.a(SourceFile:172)
at bxs.a(SourceFile:23)
at bwl.a(SourceFile:100)
at bcf.an(SourceFile:513)
at bcf.a(SourceFile:377)
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 bvh.a(SourceFile:223)
at bvg.a(SourceFile:190)
at bvg.b(SourceFile:149)
at bvg.a(SourceFile:76)
at bxr.m(SourceFile:727)
at bxr.a(SourceFile:172)
at bxs.a(SourceFile:23)
at bwl.a(SourceFile:100)
at bcf.an(SourceFile:513)

– Initialization –
Details:
Stacktrace:
at bcf.a(SourceFile:377)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.9
Operating System: Mac OS X (x86_64) version 10.11.3
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 12771944 bytes (12 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.9
LWJGL: 2.9.2
OpenGL: NVIDIA GeForce GT 750M OpenGL Engine GL version 2.1 NVIDIA-10.8.14 310.42.15f01, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object 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 MC19.zip (incompatible)
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-4570S CPU @ 2.90GHz 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. ...