crashed while I was tring to put coal into furnace. 100% repro.

—

---- Minecraft Crash Report ----
// You're mean.

Time: 9/28/16 5:48 PM
Description: Updating screen events

java.lang.NullPointerException: Updating screen events
at asg.b(SourceFile:316)
at asg.c(SourceFile:372)
at acr.a(SourceFile:15)
at acg.a(SourceFile:218)
at bni.a(SourceFile:413)
at bhz.a(SourceFile:512)
at bhz.b(SourceFile:483)
at bhh.k(SourceFile:409)
at bhh.p(SourceFile:380)
at bel.t(SourceFile:1583)
at bel.av(SourceFile:967)
at bel.a(SourceFile:395)
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 –
Thread: Client thread
Stacktrace:
at asg.b(SourceFile:316)
at asg.c(SourceFile:372)
at acr.a(SourceFile:15)
at acg.a(SourceFile:218)
at bni.a(SourceFile:413)
at bhz.a(SourceFile:512)
at bhz.b(SourceFile:483)
at bhh.k(SourceFile:409)
at bhh.p(SourceFile:380)

– Affected screen –
Details:
Screen name: bin

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bpl['MightyPork'/283, l='MpServer', x=279.41, y=62.00, z=-339.16]]
Chunk stats: MultiplayerChunkCache: 2025, 2025
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-208,64,244), Chunk: (at 0,4,4 in -13,15; contains blocks -208,0,240 to -193,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 135079 game time, 186264 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 110 total; [xb['Squid'/787, l='MpServer', x=339.31, y=62.00, z=-380.50], zk['Creeper'/788, l='MpServer', x=345.84, y=65.00, z=-339.46], zk['Creeper'/789, l='MpServer', x=350.50, y=64.00, z=-329.50], ws['Cow'/790, l='MpServer', x=356.16, y=64.00, z=-295.27], zk['Creeper'/791, l='MpServer', x=337.50, y=68.00, z=-291.50], ws['Cow'/792, l='MpServer', x=351.81, y=63.00, z=-285.46], ws['Cow'/793, l='MpServer', x=337.60, y=64.00, z=-268.84], zk['Creeper'/798, l='MpServer', x=357.50, y=66.00, z=-412.50], ws['Cow'/801, l='MpServer', x=353.96, y=63.00, z=-295.55], aab['Skeleton'/802, l='MpServer', x=354.64, y=63.00, z=-293.65], ws['Cow'/803, l='MpServer', x=355.53, y=64.00, z=-293.40], ws['Cow'/804, l='MpServer', x=354.53, y=64.00, z=-290.85], ws['Cow'/805, l='MpServer', x=359.14, y=64.00, z=-287.68], wz['Sheep'/579, l='MpServer', x=205.44, y=69.00, z=-282.26], aad['Spider'/580, l='MpServer', x=206.50, y=50.00, z=-270.50], wz['Sheep'/581, l='MpServer', x=200.71, y=72.00, z=-271.19], bpl['MightyPork'/283, l='MpServer', x=279.41, y=62.00, z=-339.16], ws['Cow'/594, l='MpServer', x=212.45, y=62.17, z=-373.50], ws['Cow'/595, l='MpServer', x=212.70, y=62.22, z=-375.55], ws['Cow'/596, l='MpServer', x=211.51, y=64.00, z=-382.21], ws['Cow'/597, l='MpServer', x=222.15, y=64.00, z=-372.51], aak['Zombie Villager'/598, l='MpServer', x=215.50, y=69.00, z=-351.50], aak['Zombie Villager'/599, l='MpServer', x=213.50, y=69.00, z=-343.50], ws['Cow'/600, l='MpServer', x=210.37, y=68.00, z=-283.70], aab['Skeleton'/601, l='MpServer', x=211.73, y=50.00, z=-264.50], wz['Sheep'/602, l='MpServer', x=213.88, y=71.00, z=-262.42], wz['Sheep'/603, l='MpServer', x=214.51, y=72.00, z=-267.27], aad['Spider'/604, l='MpServer', x=217.54, y=72.00, z=-266.95], wo['Bat'/611, l='MpServer', x=229.50, y=38.10, z=-379.83], aaj['Zombie'/612, l='MpServer', x=235.50, y=66.00, z=-377.50], ww['Pig'/613, l='MpServer', x=229.69, y=68.00, z=-359.22], wo['Bat'/614, l='MpServer', x=238.29, y=18.30, z=-338.67], zk['Creeper'/615, l='MpServer', x=228.50, y=44.00, z=-338.50], zk['Creeper'/616, l='MpServer', x=239.50, y=67.00, z=-351.50], ww['Pig'/617, l='MpServer', x=234.50, y=66.00, z=-331.50], ww['Pig'/618, l='MpServer', x=237.24, y=65.00, z=-308.65], ws['Cow'/619, l='MpServer', x=227.47, y=59.00, z=-287.19], ws['Cow'/620, l='MpServer', x=220.51, y=65.00, z=-269.77], aab['Skeleton'/621, l='MpServer', x=224.30, y=65.00, z=-265.43], aad['Spider'/623, l='MpServer', x=226.66, y=66.00, z=-259.71], zk['Creeper'/635, l='MpServer', x=247.40, y=67.00, z=-363.16], zk['Creeper'/636, l='MpServer', x=240.57, y=67.00, z=-357.85], zk['Creeper'/637, l='MpServer', x=242.50, y=67.00, z=-359.50], zk['Creeper'/638, l='MpServer', x=241.50, y=67.00, z=-356.50], aad['Spider'/639, l='MpServer', x=244.50, y=67.00, z=-360.50], aak['Zombie Villager'/640, l='MpServer', x=247.51, y=54.00, z=-337.20], wo['Bat'/641, l='MpServer', x=253.77, y=19.22, z=-328.92], aaj['Zombie'/642, l='MpServer', x=246.55, y=52.00, z=-333.23], ww['Pig'/644, l='MpServer', x=231.53, y=64.00, z=-326.29], ws['Cow'/660, l='MpServer', x=270.71, y=62.41, z=-415.55], aab['Skeleton'/661, l='MpServer', x=271.50, y=51.00, z=-378.70], aab['Skeleton'/662, l='MpServer', x=264.38, y=47.92, z=-324.47], ze['item.tile.stonebrick'/663, l='MpServer', x=271.88, y=57.00, z=-331.72], aab['Skeleton'/664, l='MpServer', x=270.50, y=58.00, z=-332.83], wo['Bat'/666, l='MpServer', x=257.75, y=47.10, z=-316.38], zk['Creeper'/667, l='MpServer', x=263.50, y=46.00, z=-314.50], aab['Skeleton'/668, l='MpServer', x=261.50, y=69.00, z=-304.50], ws['Cow'/669, l='MpServer', x=252.62, y=67.00, z=-318.22], aaj['Zombie'/670, l='MpServer', x=274.23, y=65.00, z=-264.50], wo['Bat'/671, l='MpServer', x=273.26, y=56.10, z=-264.26], aaj['Zombie'/681, l='MpServer', x=279.50, y=64.00, z=-416.50], ws['Cow'/683, l='MpServer', x=279.81, y=66.00, z=-400.23], aad['Spider'/684, l='MpServer', x=277.88, y=49.00, z=-370.30], aab['Skeleton'/685, l='MpServer', x=278.50, y=49.00, z=-363.27], abp['Arrow'/686, l='MpServer', x=274.94, y=62.22, z=-332.96], abp['Arrow'/687, l='MpServer', x=277.54, y=61.84, z=-334.96], abp['Arrow'/688, l='MpServer', x=277.43, y=61.04, z=-334.96], aab['Skeleton'/689, l='MpServer', x=288.48, y=61.00, z=-339.29], zk['Creeper'/690, l='MpServer', x=272.82, y=57.00, z=-322.50], ze['item.tile.stonebrick'/691, l='MpServer', x=272.88, y=58.00, z=-330.82], aak['Zombie Villager'/692, l='MpServer', x=276.09, y=48.00, z=-317.39], aaj['Zombie'/693, l='MpServer', x=276.70, y=47.98, z=-317.93], aak['Zombie Villager'/694, l='MpServer', x=276.31, y=47.34, z=-318.51], wo['Bat'/695, l='MpServer', x=280.25, y=60.10, z=-319.25], aab['Skeleton'/696, l='MpServer', x=276.51, y=59.00, z=-317.29], aaj['Zombie'/697, l='MpServer', x=286.49, y=60.00, z=-310.77], aab['Skeleton'/698, l='MpServer', x=277.50, y=48.00, z=-319.71], aab['Skeleton'/699, l='MpServer', x=275.79, y=68.00, z=-259.83], ws['Cow'/713, l='MpServer', x=286.70, y=64.00, z=-416.45], ws['Cow'/714, l='MpServer', x=308.17, y=65.00, z=-398.60], aab['Skeleton'/715, l='MpServer', x=289.50, y=41.00, z=-386.50], ws['Cow'/716, l='MpServer', x=297.79, y=68.00, z=-385.84], ws['Cow'/717, l='MpServer', x=302.23, y=68.00, z=-386.81], zk['Creeper'/718, l='MpServer', x=303.50, y=68.00, z=-386.50], zk['Creeper'/720, l='MpServer', x=296.59, y=70.00, z=-366.15], ze['item.tile.stonebrick'/721, l='MpServer', x=293.88, y=61.00, z=-336.36], aab['Skeleton'/722, l='MpServer', x=293.58, y=61.00, z=-337.70], aaj['Zombie'/723, l='MpServer', x=300.26, y=27.00, z=-321.50], aaj['Zombie'/724, l='MpServer', x=297.81, y=28.00, z=-322.50], ze['item.tile.stone.diorite'/725, l='MpServer', x=295.13, y=58.00, z=-326.62], ze['item.tile.oreIron'/726, l='MpServer', x=292.85, y=60.00, z=-325.13], ze['item.tile.stonebrick'/727, l='MpServer', x=294.13, y=58.00, z=-325.88], wo['Bat'/728, l='MpServer', x=291.75, y=60.10, z=-310.25], wo['Bat'/729, l='MpServer', x=293.83, y=61.10, z=-316.75], wo['Bat'/730, l='MpServer', x=291.75, y=63.10, z=-313.75], wo['Bat'/731, l='MpServer', x=294.55, y=61.10, z=-311.61], wo['Bat'/732, l='MpServer', x=294.75, y=61.10, z=-311.50], wo['Bat'/733, l='MpServer', x=288.62, y=59.34, z=-311.63], ws['Cow'/734, l='MpServer', x=288.83, y=69.00, z=-267.39], xb['Squid'/744, l='MpServer', x=320.60, y=59.00, z=-396.40], ws['Cow'/746, l='MpServer', x=324.65, y=66.00, z=-374.34], aaj['Zombie'/747, l='MpServer', x=319.50, y=14.00, z=-366.50], xb['Squid'/757, l='MpServer', x=324.50, y=62.00, z=-401.92], wo['Bat'/758, l='MpServer', x=324.75, y=20.10, z=-372.25], aaj['Zombie'/759, l='MpServer', x=327.32, y=18.00, z=-374.79], aab['Skeleton'/760, l='MpServer', x=324.29, y=18.00, z=-371.50], zk['Creeper'/761, l='MpServer', x=330.83, y=67.00, z=-350.53], ws['Cow'/762, l='MpServer', x=335.22, y=69.00, z=-318.50], zk['Creeper'/763, l='MpServer', x=331.50, y=69.00, z=-313.17], ws['Cow'/764, l='MpServer', x=332.28, y=71.00, z=-293.18]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bnj.a(SourceFile:365)
at bel.b(SourceFile:2536)
at bel.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 16w39a
Operating System: Linux (amd64) version 4.7.4-1-ARCH
Java Version: 1.8.0_92, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 250863320 bytes (239 MB) / 689704960 bytes (657 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: 13, tallocated: 95
Launched Version: 16w39a
LWJGL: 2.9.4
OpenGL: GeForce GTX 960/PCIe/SSE2 GL version 4.5.0 NVIDIA 370.28, NVIDIA Corporation
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: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz