Description: Unexpected error

java.lang.IllegalArgumentException
	at java.util.PriorityQueue.<init>(Unknown Source)
	at net.minecraft.client.renderer.Tessellator.func_147564_a(Tessellator.java:160)
	at gregapi.render.ITexture$Util.endRendering(ITexture.java:39)
	at gregapi.render.RendererBlockTextured.renderWorldBlock(RendererBlockTextured.java:115)
	at cpw.mods.fml.client.registry.RenderingRegistry.renderWorldBlock(RenderingRegistry.java:118)
	at FMLRenderAccessLibrary.renderWorldBlock(FMLRenderAccessLibrary.java:53)
	at net.minecraft.client.renderer.RenderBlocks.func_147805_b(RenderBlocks.java:296)
	at net.minecraft.client.renderer.WorldRenderer.func_147892_a(WorldRenderer.java:181)
	at net.minecraft.client.renderer.RenderGlobal.func_72716_a(RenderGlobal.java:1553)
	at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)
	at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1011)
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:990)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
	at net.minecraft.client.main.Main.main(SourceFile:148)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Stacktrace:
	at java.util.PriorityQueue.<init>(Unknown Source)
	at net.minecraft.client.renderer.Tessellator.func_147564_a(Tessellator.java:160)
	at gregapi.render.ITexture$Util.endRendering(ITexture.java:39)
	at gregapi.render.RendererBlockTextured.renderWorldBlock(RendererBlockTextured.java:115)
	at cpw.mods.fml.client.registry.RenderingRegistry.renderWorldBlock(RenderingRegistry.java:118)
	at FMLRenderAccessLibrary.renderWorldBlock(FMLRenderAccessLibrary.java:53)
	at net.minecraft.client.renderer.RenderBlocks.func_147805_b(RenderBlocks.java:296)
	at net.minecraft.client.renderer.WorldRenderer.func_147892_a(WorldRenderer.java:181)
	at net.minecraft.client.renderer.RenderGlobal.func_72716_a(RenderGlobal.java:1553)
	at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [EntityClientPlayerMP['ultrasn0wz'/52, l='MpServer', x=416,99, y=60,62, z=524,65]]
	Chunk stats: MultiplayerChunkCache: 120, 120
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options:
	Level spawn location: World: (328,4,459), Chunk: (at 8,0,11 in 20,28; contains blocks 320,0,448 to 335,255,463), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 89575 game time, 2194 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 29 total; [EntityClientPlayerMP['ultrasn0wz'/52, l='MpServer', x=416,99, y=60,62, z=524,65], EntityCreeper['Creeper'/11, l='MpServer', x=347,78, y=54,00, z=464,44], EntityBat['Bat'/12, l='MpServer', x=367,40, y=2,00, z=514,72], EntityCreeper['Creeper'/13, l='MpServer', x=361,50, y=2,00, z=541,50], EntityBat['Bat'/14, l='MpServer', x=366,75, y=3,10, z=551,75], EntityItem['item.item.arrow'/15, l='MpServer', x=389,91, y=56,13, z=495,41], EntityItem['item.item.bone'/16, l='MpServer', x=390,09, y=56,13, z=494,47], EntityItem['item.item.arrow'/17, l='MpServer', x=388,69, y=56,13, z=544,19], EntityItem['item.item.bone'/18, l='MpServer', x=388,06, y=56,13, z=544,66], EntitySkeleton['Skeleton'/20, l='MpServer', x=407,50, y=2,00, z=454,50], EntityCreeper['Creeper'/21, l='MpServer', x=410,44, y=56,00, z=473,75], EntityItem['item.item.arrow'/22, l='MpServer', x=405,72, y=56,13, z=467,19], EntitySkeleton['Skeleton'/23, l='MpServer', x=406,91, y=50,00, z=531,53], EntitySpider['Spider'/25, l='MpServer', x=424,52, y=56,00, z=492,59], EntityBat['Bat'/26, l='MpServer', x=429,75, y=53,10, z=533,25], EntityItem['item.item.arrow'/27, l='MpServer', x=430,81, y=56,13, z=559,88], EntityItem['item.item.bone'/28, l='MpServer', x=431,09, y=56,13, z=559,94], EntitySpider['Spider'/29, l='MpServer', x=421,28, y=56,00, z=553,44], EntityItem['item.item.arrow'/30, l='MpServer', x=427,97, y=56,13, z=568,19], EntitySpider['Spider'/33, l='MpServer', x=441,19, y=56,00, z=513,03], EntityBat['Bat'/34, l='MpServer', x=450,65, y=59,40, z=523,54], EntityItem['item.item.bone'/35, l='MpServer', x=439,75, y=56,13, z=571,97], EntityItem['item.item.arrow'/36, l='MpServer', x=440,31, y=56,13, z=573,88], EntityItem['item.item.bone'/37, l='MpServer', x=438,72, y=56,13, z=574,34], EntityItem['item.item.bone'/39, l='MpServer', x=457,75, y=56,13, z=554,47], EntityItem['item.item.arrow'/41, l='MpServer', x=468,63, y=56,13, z=507,75], EntityItem['item.item.bone'/42, l='MpServer', x=469,19, y=56,13, z=507,72], EntityZombie['Zombie'/43, l='MpServer', x=467,50, y=2,00, z=521,50], EntityBat['Bat'/44, l='MpServer', x=485,11, y=61,00, z=515,02]]
	Retry entities: 0 total; []
	Server brand: fml,forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
	at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2433)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:916)
	at net.minecraft.client.main.Main.main(SourceFile:148)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)