java.lang.OutOfMemoryError: Java heap space

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via GitHub by DarkArc
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Java heap space
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java.lang.OutOfMemoryError: Java heap space
at net.minecraft.nbt.NBTTagIntArray.func_152446_a(SourceFile:39)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:475)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:49)
at net.minecraft.nbt.NBTTagList.func_152446_a(SourceFile:66)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:475)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:49)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:475)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:49)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:475)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:49)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:475)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:49)
at net.minecraft.nbt.CompressedStreamTools.func_152455_a(CompressedStreamTools.java:132)
at net.minecraft.nbt.CompressedStreamTools.func_152456_a(CompressedStreamTools.java:87)
at net.minecraft.nbt.CompressedStreamTools.func_74796_a(CompressedStreamTools.java:30)
at net.minecraft.world.storage.MapStorage.func_75742_a(SourceFile:49)
at net.minecraft.world.gen.structure.MapGenStructure.func_143027_a(MapGenStructure.java:224)
at net.minecraft.world.gen.structure.MapGenStructure.func_180701_a(MapGenStructure.java:29)
at net.minecraft.world.gen.MapGenBase.func_186125_a(SourceFile:27)
at org.spongepowered.common.world.gen.SpongeChunkGenerator.func_180514_a(SpongeChunkGenerator.java:427)
at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:101)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:115)
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:86)
at net.minecraft.server.MinecraftServer.prepareSpawnArea(MinecraftServer.java:378)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:340)
at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:328)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:266)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
at java.lang.Thread.run(Thread.java:745)

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