I have had occasional crashes while exploring a world and generating new terrain. While playing the game and moving about the world (I'm exploring the ocean in a boat) the game suddenly hangs and has to be terminated externally. Here is the crash with water.
Crash report
---- Minecraft Crash Report ----
// Why is it breaking :(
Time: 13/02/19 18:17
Description: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world
at dfj.b(SourceFile:15)
at dfj$$Lambda$2620/478244284.getColor(Unknown Source)
at dfj.a(SourceFile:27)
at dfj.c(SourceFile:46)
at dgm.a(SourceFile:64)
at dgl.a(SourceFile:78)
at din.b(SourceFile:208)
at dik.a(SourceFile:88)
at dik.run(SourceFile:41)
at java.lang.Thread.run(Thread.java:745)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Client thread
Stacktrace:
at dfj.b(SourceFile:15)
at dfj$$Lambda$2620/478244284.getColor(Unknown Source)
at dfj.a(SourceFile:27)
at dfj.c(SourceFile:46)
at dgm.a(SourceFile:64)
-- Block being tesselated --
Details:
Block location: World: (-5186,50,-35936), Chunk: (at 14,3,0 in -325,-2246; contains blocks -5200,0,-35936 to -5185,255,-35921), Region: (-11,-71; contains chunks -352,-2272 to -321,-2241, blocks -5632,0,-36352 to -5121,255,-35841)
Stacktrace:
at dgl.a(SourceFile:78)
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [dfe['Oval'/202, l='MpServer', x=-5322.34, y=68.32, z=-36023.31]]
Chunk stats: MultiplayerChunkCache: 625, 7865
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options: {}
Level spawn location: World: (112,65,96), Chunk: (at 0,4,0 in 7,6; contains blocks 112,0,96 to 127,255,111), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 36575 game time, 36575 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: creative (ID 1). Hardcore: false. Cheats: false
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at dct.a(SourceFile:466)
at cqn.b(SourceFile:1894)
at dik.run(SourceFile:47)
at java.lang.Thread.run(Thread.java:745)
-- System Details --
Details:
Minecraft Version: 19w07a
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 285329936 bytes (272 MB) / 1073741824 bytes (1024 MB) up to 1073741824 bytes (1024 MB)
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 19w07a
LWJGL: 3.2.1 build 12
OpenGL: NO CONTEXT
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: vanilla, file/MC-143983
Current Language: English (US)
CPU: 4x AMD Athlon(tm) X4 760K Quad Core Processor
Related issues
is duplicated by
relates to
Attachments
Comments

another crash report of the same error:
---- Minecraft Crash Report -------- Minecraft Crash Report ----// But it works on my machine.
Time: 8/15/18 2:11 PMDescription: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world at dhg.b(SourceFile:14) at dhg$$Lambda$1150/1454825586.getColor(Unknown Source) at dhg.a(SourceFile:26) at dhg.c(SourceFile:45) at cuk.a(SourceFile:68) at cuj.a(SourceFile:78) at cwj.b(SourceFile:191) at cwf.a(SourceFile:100) at cwf.run(SourceFile:43) at java.lang.Thread.run(Thread.java:745)
A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Client threadStacktrace: at dhg.b(SourceFile:14) at dhg$$Lambda$1150/1454825586.getColor(Unknown Source) at dhg.a(SourceFile:26) at dhg.c(SourceFile:45) at cuk.a(SourceFile:68)
-- Block being tesselated --Details: Block location: World: (-4498,36,3662), Chunk: (at 14,2,14 in -282,228; contains blocks -4512,0,3648 to -4497,255,3663), Region: (-9,7; contains chunks -288,224 to -257,255, blocks -4608,0,3584 to -4097,255,4095)Stacktrace: at cuj.a(SourceFile:78)
-- Affected level --Details: Level name: MpServer All players: 1 total; [csy['RolfKovach'/4404895, l='MpServer', x=-4813.74, y=76.62, z=3604.08]] Chunk stats: MultiplayerChunkCache: 1674, 1674 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: {} Level spawn location: World: (60,64,164), Chunk: (at 12,4,4 in 3,10; contains blocks 48,0,160 to 63,255,175), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 244702283 game time, 249079894 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: 102 total; [akb['Sheep'/4452935, l='MpServer', x=-4889.51, y=92.00, z=3577.11], akb['Sheep'/4452934, l='MpServer', x=-4884.77, y=92.00, z=3576.29], akb['Sheep'/4452933, l='MpServer', x=-4888.17, y=92.00, z=3571.17], akb['Sheep'/4452932, l='MpServer', x=-4880.30, y=89.00, z=3585.75], anj['Skeleton'/4459606, l='MpServer', x=-4889.51, y=15.00, z=3566.32], anm['Spider'/4459603, l='MpServer', x=-4887.30, y=15.10, z=3574.02], anm['Spider'/4460127, l='MpServer', x=-4895.50, y=18.00, z=3567.50], anj['Skeleton'/4459608, l='MpServer', x=-4889.50, y=15.00, z=3562.50], akm['Horse'/4405345, l='MpServer', x=-4813.74, y=75.77, z=3604.08], amp['Creeper'/4461676, l='MpServer', x=-4770.33, y=26.95, z=3564.62], amp['Creeper'/4461677, l='MpServer', x=-4770.66, y=26.00, z=3564.00], ams['Enderman'/4461678, l='MpServer', x=-4874.50, y=17.00, z=3616.50], ams['Enderman'/4461679, l='MpServer', x=-4878.26, y=21.00, z=3625.53], aji['Bat'/4458602, l='MpServer', x=-4826.98, y=18.94, z=3537.24], aji['Bat'/4461692, l='MpServer', x=-4778.40, y=20.98, z=3592.39], aji['Bat'/4461693, l='MpServer', x=-4771.54, y=20.48, z=3601.58], ajw['Pig'/4454520, l='MpServer', x=-4782.31, y=67.00, z=3522.46], aji['Bat'/4461695, l='MpServer', x=-4767.70, y=21.08, z=3588.42], aji['Bat'/4461689, l='MpServer', x=-4774.34, y=22.03, z=3594.11], ake['Squid'/4460549, l='MpServer', x=-4807.67, y=61.40, z=3649.06], anm['Spider'/4461574, l='MpServer', x=-4781.03, y=25.10, z=3594.30], ake['Squid'/4460550, l='MpServer', x=-4806.13, y=61.45, z=3653.36], amp['Creeper'/4461575, l='MpServer', x=-4791.46, y=24.00, z=3603.17], amp['Creeper'/4461576, l='MpServer', x=-4789.38, y=24.00, z=3601.70], ake['Squid'/4460552, l='MpServer', x=-4798.83, y=62.00, z=3651.06], anj['Skeleton'/4461577, l='MpServer', x=-4790.50, y=24.00, z=3598.50], aji['Bat'/4459032, l='MpServer', x=-4857.78, y=23.00, z=3541.09], ami['Egg'/4456998, l='MpServer', x=-4841.07, y=72.00, z=3621.00], anj['Skeleton'/4461609, l='MpServer', x=-4756.50, y=27.00, z=3613.50], csy['RolfKovach'/4404895, l='MpServer', x=-4813.74, y=76.62, z=3604.08], aji['Bat'/4460741, l='MpServer', x=-4823.86, y=37.19, z=3609.37], aji['Bat'/4460742, l='MpServer', x=-4819.17, y=44.10, z=3604.62], aji['Bat'/4460743, l='MpServer', x=-4833.65, y=36.91, z=3605.49], ajn['Chicken'/4454095, l='MpServer', x=-4844.16, y=66.00, z=3564.49], akb['Sheep'/4454094, l='MpServer', x=-4829.71, y=66.00, z=3525.52], amp['Creeper'/4461257, l='MpServer', x=-4758.50, y=55.00, z=3604.50], akb['Sheep'/4454093, l='MpServer', x=-4837.52, y=66.00, z=3521.77], akb['Sheep'/4454092, l='MpServer', x=-4838.80, y=65.00, z=3525.13], ajn['Chicken'/4454099, l='MpServer', x=-4843.51, y=73.00, z=3615.20], ajn['Chicken'/4454098, l='MpServer', x=-4847.60, y=66.00, z=3557.00], ajn['Chicken'/4454097, l='MpServer', x=-4855.13, y=69.00, z=3557.50], ajn['Chicken'/4454096, l='MpServer', x=-4848.12, y=65.00, z=3540.58], ajn['Chicken'/4454102, l='MpServer', x=-4833.84, y=72.00, z=3627.43], ajn['Chicken'/4454101, l='MpServer', x=-4837.12, y=72.00, z=3618.39], ajn['Chicken'/4454100, l='MpServer', x=-4836.52, y=73.00, z=3613.81], aji['Bat'/4460263, l='MpServer', x=-4888.25, y=18.99, z=3563.75], aji['Bat'/4460258, l='MpServer', x=-4886.18, y=13.77, z=3574.40], aji['Bat'/4460259, l='MpServer', x=-4869.69, y=11.97, z=3577.25], akb['Sheep'/4454123, l='MpServer', x=-4839.55, y=75.00, z=3584.55], akb['Sheep'/4454122, l='MpServer', x=-4836.31, y=74.00, z=3580.71], anm['Spider'/4461199, l='MpServer', x=-4817.50, y=34.00, z=3587.50], ans['Zombie'/4460692, l='MpServer', x=-4806.50, y=30.00, z=3580.50], anj['Skeleton'/4460176, l='MpServer', x=-4816.50, y=33.00, z=3594.50], amp['Creeper'/4461720, l='MpServer', x=-4802.50, y=31.00, z=3587.50], ami['Egg'/4461739, l='MpServer', x=-4848.34, y=72.00, z=3613.26], ami['Egg'/4461757, l='MpServer', x=-4877.88, y=66.00, z=3612.16], ans['Zombie'/4461379, l='MpServer', x=-4765.24, y=34.00, z=3534.45], ajw['Pig'/4454724, l='MpServer', x=-4738.19, y=73.00, z=3633.74], ajn['Chicken'/4453233, l='MpServer', x=-4877.00, y=66.00, z=3613.00], anj['Skeleton'/4460918, l='MpServer', x=-4876.55, y=24.00, z=3542.75], ans['Zombie'/4460800, l='MpServer', x=-4850.50, y=23.00, z=3560.50], amp['Creeper'/4457749, l='MpServer', x=-4829.50, y=22.00, z=3535.50], amp['Creeper'/4457764, l='MpServer', x=-4831.56, y=22.00, z=3538.80], ans['Zombie'/4461366, l='MpServer', x=-4795.50, y=47.00, z=3602.50], ans['Zombie'/4461367, l='MpServer', x=-4799.50, y=47.00, z=3600.50], ans['Zombie'/4461368, l='MpServer', x=-4797.50, y=47.00, z=3601.50], ams['Enderman'/4459321, l='MpServer', x=-4801.50, y=27.00, z=3583.50], ans['Zombie'/4461369, l='MpServer', x=-4796.50, y=47.00, z=3601.50], aji['Bat'/4461508, l='MpServer', x=-4770.49, y=44.13, z=3671.13], amp['Creeper'/4461007, l='MpServer', x=-4771.50, y=25.00, z=3597.50], amp['Creeper'/4461003, l='MpServer', x=-4881.50, y=32.00, z=3680.50], anj['Skeleton'/4460500, l='MpServer', x=-4808.47, y=29.00, z=3579.73], amp['Creeper'/4459502, l='MpServer', x=-4806.50, y=28.00, z=3586.50], ajp['Cow'/4453875, l='MpServer', x=-4853.78, y=79.00, z=3584.52], ajn['Chicken'/4453874, l='MpServer', x=-4850.42, y=76.00, z=3592.23], amp['Creeper'/4461045, l='MpServer', x=-4767.50, y=21.00, z=3590.50], anj['Skeleton'/4461557, l='MpServer', x=-4868.50, y=15.00, z=3557.50], ajn['Chicken'/4453873, l='MpServer', x=-4845.55, y=76.00, z=3605.22], amp['Creeper'/4461046, l='MpServer', x=-4769.50, y=21.00, z=3591.50], ans['Zombie'/4457975, l='MpServer', x=-4833.50, y=31.00, z=3546.50], ajn['Chicken'/4453879, l='MpServer', x=-4849.21, y=72.00, z=3612.52], ajn['Chicken'/4453878, l='MpServer', x=-4850.50, y=76.00, z=3603.11], ajp['Cow'/4453877, l='MpServer', x=-4868.18, y=86.00, z=3582.69], ajp['Cow'/4453876, l='MpServer', x=-4863.49, y=86.00, z=3576.48], anm['Spider'/4459507, l='MpServer', x=-4804.71, y=28.00, z=3585.67], ans['Zombie'/4461043, l='MpServer', x=-4826.48, y=47.95, z=3589.40], anj['Skeleton'/4460937, l='MpServer', x=-4768.27, y=53.00, z=3601.50], anj['Skeleton'/4460938, l='MpServer', x=-4760.50, y=55.00, z=3603.50], ajw['Pig'/4454290, l='MpServer', x=-4803.00, y=72.00, z=3558.00], ajw['Pig'/4454289, l='MpServer', x=-4803.00, y=72.00, z=3558.00], ajw['Pig'/4454288, l='MpServer', x=-4802.00, y=73.00, z=3559.00], anj['Skeleton'/4459411, l='MpServer', x=-4814.50, y=40.00, z=3604.50], ans['Zombie'/4457882, l='MpServer', x=-4877.50, y=14.00, z=3568.50], aji['Bat'/4459931, l='MpServer', x=-4860.66, y=18.93, z=3556.54], amp['Creeper'/4460453, l='MpServer', x=-4844.23, y=20.00, z=3556.43], akb['Sheep'/4454319, l='MpServer', x=-4794.38, y=75.00, z=3568.55], akb['Sheep'/4454318, l='MpServer', x=-4793.45, y=75.00, z=3568.45], ajw['Pig'/4454317, l='MpServer', x=-4796.50, y=75.00, z=3565.24], ajw['Pig'/4454316, l='MpServer', x=-4786.30, y=67.00, z=3525.47], akb['Sheep'/4454321, l='MpServer', x=-4792.73, y=79.00, z=3579.51], amp['Creeper'/4459447, l='MpServer', x=-4887.50, y=21.00, z=3584.50], akb['Sheep'/4454320, l='MpServer', x=-4791.42, y=79.00, z=3576.55]] Retry entities: 0 total; [] Server brand: vanilla Server type: Non-integrated multiplayer serverStacktrace: at cqv.a(SourceFile:427) at cfi.b(SourceFile:1811) at cwf.run(SourceFile:49) at java.lang.Thread.run(Thread.java:745)
-- System Details --Details: Minecraft Version: 1.13 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 396168232 bytes (377 MB) / 1006632960 bytes (960 MB) up to 1073741824 bytes (1024 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M Launched Version: 1.13 LWJGL: 3.1.6 build 14 OpenGL: NO CONTEXT 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: 8x Intel(R) Xeon(R) CPU E3-1265L V2 @ 2.50GHz
Confirmed. I have experienced crashes with this description several times while playing on a multiplayer server. Unlike a prior comment this has happened while in chunks that had already been generated.
Can confirm this happens on many multiplayer servers to me on version 1.13.1.
Doesn't matter if the servers are Vanilla, Spigot, PaperSpigot e.t.c
Happened to me here is the report
---- Minecraft Crash Report -------- Minecraft Crash Report ----// Don't do that.
Time: 10/19/18 3:11 PMDescription: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world at dhg.b(SourceFile:14) at dhg$$Lambda$1073/193499910.getColor(Unknown Source) at dhg.a(SourceFile:26) at dhg.c(SourceFile:45) at cuk.a(SourceFile:68) at cuj.a(SourceFile:78) at cwj.b(SourceFile:191) at cwf.a(SourceFile:100) at cwf.run(SourceFile:43) at java.lang.Thread.run(Thread.java:745)
A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Client threadStacktrace: at dhg.b(SourceFile:14) at dhg$$Lambda$1073/193499910.getColor(Unknown Source) at dhg.a(SourceFile:26) at dhg.c(SourceFile:45) at cuk.a(SourceFile:68)
-- Block being tesselated --Details: Block location: World: (-5936,29,-3472), Chunk: (at 0,1,0 in -371,-217; contains blocks -5936,0,-3472 to -5921,255,-3457), Region: (-12,-7; contains chunks -384,-224 to -353,-193, blocks -6144,0,-3584 to -5633,255,-3073)Stacktrace: at cuj.a(SourceFile:78)
-- Affected level --Details: Level name: MpServer All players: 1 total; [csy['ILikezMyPiez'/383699, l='MpServer', x=-5838.27, y=45.94, z=-3348.52]] Chunk stats: MultiplayerChunkCache: 287, 287 Level seed: 0 Level generator: ID 02 - largeBiomes, ver 0. Features enabled: false Level generator options: {} Level spawn location: World: (8955,77,-9375), Chunk: (at 11,4,1 in 559,-586; contains blocks 8944,0,-9376 to 8959,255,-9361), Region: (17,-19; contains chunks 544,-608 to 575,-577, blocks 8704,0,-9728 to 9215,255,-9217) Level time: 157677 game time, 7398294 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: 5 total; [ajn['Chicken'/385543, l='MpServer', x=2631.53, y=96.00, z=9651.31], ajp['Cow'/437188, l='MpServer', x=4683.20, y=70.00, z=10580.60], aph['Minecart with Chest'/453530, l='MpServer', x=-5752.50, y=23.06, z=-3351.50], ans['Zombie'/413223, l='MpServer', x=2657.50, y=40.00, z=9743.50], csy['ILikezMyPiez'/383699, l='MpServer', x=-5838.27, y=45.94, z=-3348.52]] Retry entities: 41 total; [ajn['Chicken'/385543, l='MpServer', x=2631.53, y=96.00, z=9651.31], ajp['Cow'/437188, l='MpServer', x=4683.20, y=70.00, z=10580.60], ajp['Cow'/437189, l='MpServer', x=4687.72, y=70.00, z=10586.41], ajn['Chicken'/437187, l='MpServer', x=4686.49, y=69.18, z=10591.88], aph['Minecart with Chest'/385677, l='MpServer', x=2730.50, y=23.06, z=9653.50], ans['Zombie'/440269, l='MpServer', x=4717.50, y=45.00, z=10634.50], aph['Minecart with Chest'/385864, l='MpServer', x=2781.50, y=17.06, z=9696.50], ans['Zombie'/411144, l='MpServer', x=2669.33, y=24.00, z=9690.30], ans['Zombie'/412502, l='MpServer', x=2670.38, y=24.00, z=9690.30], ajw['Pig'/437206, l='MpServer', x=4674.10, y=67.00, z=10618.49], ajw['Pig'/437207, l='MpServer', x=4674.36, y=68.00, z=10618.16], amp['Creeper'/413205, l='MpServer', x=2688.50, y=28.00, z=9651.50], ans['Zombie'/405714, l='MpServer', x=2673.30, y=28.00, z=9687.70], amp['Creeper'/413203, l='MpServer', x=2686.50, y=28.00, z=9649.50], ajw['Pig'/437208, l='MpServer', x=4675.49, y=64.00, z=10620.84], ajw['Pig'/437158, l='MpServer', x=4736.40, y=97.00, z=10548.85], ans['Zombie'/413223, l='MpServer', x=2657.50, y=40.00, z=9743.50], akb['Sheep'/437159, l='MpServer', x=4751.27, y=75.00, z=10608.28], ajn['Chicken'/385190, l='MpServer', x=2661.20, y=94.00, z=9649.58], akb['Sheep'/437157, l='MpServer', x=4754.48, y=94.00, z=10556.55], ajn['Chicken'/437218, l='MpServer', x=4672.44, y=70.00, z=10581.92], ans['Zombie'/409184, l='MpServer', x=2669.70, y=24.00, z=9691.00], ans['Zombie'/409185, l='MpServer', x=2670.03, y=24.00, z=9692.65], amp['Creeper'/442222, l='MpServer', x=4687.50, y=18.00, z=10574.50], ajp['Cow'/437166, l='MpServer', x=4756.51, y=100.00, z=10547.20], aph['Minecart with Chest'/385839, l='MpServer', x=2754.50, y=14.06, z=9708.50], aph['Minecart with Chest'/385903, l='MpServer', x=2754.50, y=9.06, z=9778.50], ajp['Cow'/437165, l='MpServer', x=4753.45, y=94.00, z=10556.45], amp['Creeper'/386153, l='MpServer', x=2647.50, y=94.00, z=9656.50], ans['Zombie'/415016, l='MpServer', x=2670.72, y=24.00, z=9692.30], akb['Sheep'/437160, l='MpServer', x=4758.74, y=87.00, z=10577.46], ant['Zombie Villager'/422953, l='MpServer', x=2638.50, y=18.00, z=9679.50], aph['Minecart with Chest'/385141, l='MpServer', x=2694.50, y=28.06, z=9651.50], aph['Minecart with Chest'/385845, l='MpServer', x=2716.50, y=28.06, z=9621.50], ajn['Chicken'/437175, l='MpServer', x=4694.25, y=64.00, z=10592.99], ajw['Pig'/437237, l='MpServer', x=4669.96, y=63.00, z=10625.53], ajp['Cow'/385138, l='MpServer', x=2690.48, y=78.00, z=9741.41], ajn['Chicken'/437182, l='MpServer', x=4701.38, y=72.00, z=10575.84], anj['Skeleton'/418879, l='MpServer', x=2708.50, y=56.00, z=9668.50], ajp['Cow'/437176, l='MpServer', x=4688.22, y=69.00, z=10588.45], ajp['Cow'/437177, l='MpServer', x=4695.69, y=72.00, z=10582.54]] Server brand: Waterfall (git:Waterfall-Bootstrap:1.13-SNAPSHOT:1d9e721:230) <- Paper Server type: Non-integrated multiplayer serverStacktrace: at cqv.a(SourceFile:427) at cfi.b(SourceFile:1811) at cwf.run(SourceFile:49) at java.lang.Thread.run(Thread.java:745)
-- System Details --Details: Minecraft Version: 1.13 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 534839400 bytes (510 MB) / 1040187392 bytes (992 MB) up to 1073741824 bytes (1024 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M Launched Version: 1.13 LWJGL: 3.1.6 build 14 OpenGL: NO CONTEXT 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) i5-6600 CPU @ 3.30GHz
Just happened when generating a new world in 18w47b. This is a great opportunity to debug it.
To reproduce, use seed -8306919013515515135
the world can be loaded normally after restarting the game (that's where I got the seed from)
---- Minecraft Crash Report ----
// I let you down. Sorry :(
Time: 11/24/18 3:03 PM
Description: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world
at dba.b(SourceFile:15)
at dba.a(SourceFile:27)
at dba.c(SourceFile:46)
at dcd.a(SourceFile:68)
at dcc.a(SourceFile:78)
at deb.b(SourceFile:208)
at ddy.a(SourceFile:88)
at ddx.b(SourceFile:137)
at dbm.a(SourceFile:951)
at dbi.b(SourceFile:941)
at dbi.a(SourceFile:877)
at dbi.a(SourceFile:751)
at cnd.d(SourceFile:850)
at cnd.b(SourceFile:389)
at net.minecraft.client.main.Main.main(SourceFile:154)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Client thread
Stacktrace:
at dba.b(SourceFile:15)
at dba.a(SourceFile:27)
at dba.c(SourceFile:46)
at dcd.a(SourceFile:68)
-- Block being tesselated --
Details:
Block location: World: (-240,48,246), Chunk: (at 0,3,6 in -15,15; contains blocks -240,0,240 to -225,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Stacktrace:
at dcc.a(SourceFile:78)
at deb.b(SourceFile:208)
at ddy.a(SourceFile:88)
at ddx.b(SourceFile:137)
at dbm.a(SourceFile:951)
at dbi.b(SourceFile:941)
at dbi.a(SourceFile:877)
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [dat['MightyPork'/224, l='MpServer', x=-221.50, y=63.00, z=248.50]]
Chunk stats: MultiplayerChunkCache: 3025, 1
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options: {}
Level spawn location: World: (-224,63,257), Chunk: (at 0,3,1 in -14,16; contains blocks -224,0,256 to -209,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 32 game time, 32 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: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 40 total; [aoi['Brown Mushroom'/192, l='MpServer', x=-251.47, y=24.00, z=191.31], aoh['Falling Block'/257, l='MpServer', x=-320.50, y=14.02, z=237.50], aoh['Falling Block'/258, l='MpServer', x=-321.50, y=15.02, z=237.50], aor['Drowned'/9, l='MpServer', x=-236.06, y=53.00, z=258.70], aor['Drowned'/10, l='MpServer', x=-235.70, y=53.00, z=257.84], alm['Chicken'/11, l='MpServer', x=-250.50, y=46.29, z=252.50], aor['Drowned'/12, l='MpServer', x=-244.50, y=46.00, z=251.68], aor['Drowned'/13, l='MpServer', x=-246.50, y=46.00, z=247.50], aor['Drowned'/14, l='MpServer', x=-249.25, y=46.00, z=244.94], aor['Drowned'/15, l='MpServer', x=-233.50, y=47.00, z=229.17], aor['Drowned'/16, l='MpServer', x=-263.50, y=47.00, z=241.83], aoh['Falling Block'/221, l='MpServer', x=-320.50, y=12.90, z=237.50], aoh['Falling Block'/222, l='MpServer', x=-321.50, y=13.90, z=237.50], aln['Cod'/225, l='MpServer', x=-195.50, y=58.00, z=281.50], aln['Cod'/226, l='MpServer', x=-198.50, y=58.00, z=280.50], aln['Cod'/227, l='MpServer', x=-195.50, y=58.00, z=282.50], amf['Tropical Fish'/228, l='MpServer', x=-194.50, y=58.00, z=284.50], dat['MightyPork'/224, l='MpServer', x=-221.50, y=63.00, z=248.50], amf['Tropical Fish'/229, l='MpServer', x=-192.50, y=58.00, z=280.50], amf['Tropical Fish'/230, l='MpServer', x=-196.50, y=58.00, z=283.50], amf['Tropical Fish'/231, l='MpServer', x=-197.50, y=58.00, z=283.50], amf['Tropical Fish'/232, l='MpServer', x=-200.50, y=58.00, z=283.50], ame['Squid'/233, l='MpServer', x=-189.50, y=55.00, z=288.50], ame['Squid'/234, l='MpServer', x=-190.50, y=55.00, z=292.50], aln['Cod'/235, l='MpServer', x=-187.50, y=55.00, z=289.50], aln['Cod'/236, l='MpServer', x=-184.50, y=55.00, z=290.50], aln['Cod'/237, l='MpServer', x=-185.50, y=55.00, z=291.50], aln['Cod'/238, l='MpServer', x=-183.50, y=55.00, z=294.50], aln['Cod'/239, l='MpServer', x=-182.50, y=55.00, z=292.50], amf['Tropical Fish'/241, l='MpServer', x=-220.50, y=57.00, z=280.50], amf['Tropical Fish'/242, l='MpServer', x=-220.50, y=57.00, z=282.50], amf['Tropical Fish'/243, l='MpServer', x=-220.50, y=57.00, z=283.50], amf['Tropical Fish'/244, l='MpServer', x=-220.50, y=57.00, z=284.50], amf['Tropical Fish'/245, l='MpServer', x=-218.50, y=57.00, z=283.50], amf['Tropical Fish'/246, l='MpServer', x=-217.50, y=57.00, z=283.50], amf['Tropical Fish'/247, l='MpServer', x=-216.50, y=57.00, z=284.50], amf['Tropical Fish'/248, l='MpServer', x=-219.50, y=57.00, z=283.50], alf['Bat'/250, l='MpServer', x=-211.50, y=16.00, z=201.50], alf['Bat'/251, l='MpServer', x=-211.50, y=16.00, z=200.50], alf['Bat'/253, l='MpServer', x=-211.50, y=16.00, z=202.50]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at cyq.a(SourceFile:368)
at cnd.b(SourceFile:1867)
at cnd.b(SourceFile:397)
at net.minecraft.client.main.Main.main(SourceFile:154)
-- System Details --
Details:
Minecraft Version: 18w47b
Operating System: Linux (amd64) version 4.19.2-arch1-1-ARCH
Java Version: 1.8.0_192, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 662047680 bytes (631 MB) / 1040187392 bytes (992 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 18w47b
LWJGL: 3.1.6 build 14
OpenGL: GeForce GTX 960/PCIe/SSE2 GL version 4.6.0 NVIDIA 415.18, 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: vanilla
Current Language: English (US)
CPU: 4x Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz
Also happening on MacOS 10.14.3 with Zulu Java 11.0.2
I have this problem in my world, which is pretty much unplayable now when exploring. If new chunks are generated the game runs for about 10 seconds prior to getting this crash:
Description: Tesselating liquid in worldDescription: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world at dfc.b(SourceFile:15) at dfc.a(SourceFile:27) at dfc.c(SourceFile:46) at dgf.a(SourceFile:64) at dge.a(SourceFile:78) at dig.b(SourceFile:208) at did.a(SourceFile:88) at did.run(SourceFile:41) at java.lang.Thread.run(Thread.java:745)A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Client threadStacktrace: at dfc.b(SourceFile:15) at dfc.a(SourceFile:27) at dfc.c(SourceFile:46) at dgf.a(SourceFile:64)
-- Block being tesselated --Details: Block location: World: (-6672,48,-18530), Chunk: (at 0,3,14 in -417,-1159; contains blocks -6672,0,-18544 to -6657,255,-18529), Region: (-14,-37; contains chunks -448,-1184 to -417,-1153, blocks -7168,0,-18944 to -6657,255,-18433)Stacktrace: at dge.a(SourceFile:78)
-- Affected level --Details: Level name: MpServer All players: 1 total; [dex['russec'/34017, l='MpServer', x=-6621.39, y=68.00, z=-18686.32]] Chunk stats: MultiplayerChunkCache: 1089, 451 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: {} Level spawn location: World: (-9786,78,-24590), Chunk: (at 6,4,2 in -612,-1537; contains blocks -9792,0,-24592 to -9777,255,-24577), Region: (-20,-49; contains chunks -640,-1568 to -609,-1537, blocks -10240,0,-25088 to -9729,255,-24577) Level time: 41790722 game time, 4064169 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 Server brand: vanilla Server type: Non-integrated multiplayer serverStacktrace: at dcm.a(SourceFile:466) at cqg.b(SourceFile:1877) at did.run(SourceFile:47) at java.lang.Thread.run(Thread.java:745)
-- System Details --Details: Minecraft Version: 19w06a Operating System: Mac OS X (x86_64) version 10.12.6 Java Version: 1.8.0_74, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1122566728 bytes (1070 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 19w06a LWJGL: 3.2.1 build 12 OpenGL: NO CONTEXT 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: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: Current Language: English (US) CPU: 8x Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz
Can confirm for 19w06a.
---- Minecraft Crash Report -------- Minecraft Crash Report ----// Shall we play a game?
Time: 10/02/19 21:19Description: Tesselating liquid in world
java.lang.NullPointerException: Tesselating liquid in world at dfc.b(SourceFile:15) at dfc$$Lambda$2545/438448733.getColor(Unknown Source) at dfc.a(SourceFile:27) at dfc.c(SourceFile:46) at dgf.a(SourceFile:64) at dge.a(SourceFile:78) at dig.b(SourceFile:208) at did.a(SourceFile:88) at did.run(SourceFile:41) at java.lang.Thread.run(Thread.java:745)A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Client threadStacktrace: at dfc.b(SourceFile:15) at dfc$$Lambda$2545/438448733.getColor(Unknown Source) at dfc.a(SourceFile:27) at dfc.c(SourceFile:46) at dgf.a(SourceFile:64)
-- Block being tesselated --Details: Block location: World: (318,48,832), Chunk: (at 14,3,0 in 19,52; contains blocks 304,0,832 to 319,255,847), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)Stacktrace: at dge.a(SourceFile:78)
-- Affected level --Details: Level name: MpServer All players: 1 total; [dex['NinjasInMojang'/2325, l='MpServer', x=160.96, y=57.84, z=729.87]] Chunk stats: MultiplayerChunkCache: 625, 463 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: {} Level spawn location: World: (80,71,144), Chunk: (at 0,4,0 in 5,9; contains blocks 80,0,144 to 95,255,159), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 275371 game time, 365372 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 Server brand: vanilla Server type: Integrated singleplayer serverStacktrace: at dcm.a(SourceFile:466) at cqg.b(SourceFile:1877) at did.run(SourceFile:47) at java.lang.Thread.run(Thread.java:745)
-- System Details --Details: Minecraft Version: 19w06a Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 814116192 bytes (776 MB) / 1744830464 bytes (1664 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 19w06a LWJGL: 3.2.1 build 12 OpenGL: NO CONTEXT 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: vanilla, file/Texture Update V3.1.zip Current Language: English (US) CPU: 4x Intel(R) Core(TM) i5-3350P CPU @ 3.10GHz
I've had this repeatedly as well when chunks above or below water are generating
Edited to add this happens in both survival and in creative, in a boat, swimming or flying.
{ Removed report}
No need to keep adding crash reports. The one in the description is enough.

This definitely happens more often in 1.14 snapshots than it does in 1.13. I have one world that will crash if you attempt to load any chunks.
Confirming still on 19w07a, windows 10 pro 1809 version 17763.292 Java 8 update 201
Can also confirm on 19w07a, java 1.8.0_191-b12, windows 10.
Can confirm still unresolved for 19w07a on Mac OS
Can confirm 19w07a, Win 10. Seems to happen when generating chunks, generally water.
Can confirm on 19w07a, Windows 8.1. Happened when generating a brand new world and crashed after about 10 seconds. I was on an island in the middle of the ocean.
Because you were generating an ocean. It has tons of water, which made the error happen.
Confirmed, still happens on 19w07a. To be honest, I haven't seen this error until this snapshot when I created a server that ran a world with seed = -9067071545229024555. This crash happens so much that the world is almost unplayable when sailing around and exploring the world (but it works fine if I stay on an island and build on it). Client is running on 64bit Win10, and the LAN server is Lubuntu 64bit.
I'm not certain when it started with recent snaps but I believe it was AFTER** 19w03c because I was generating a lot of island seeds in that snap and never had the crash. Recently I noticed it starting with 19w06a. I've been looking for a good map to play with my nephews for the 1.14 release and experienced this crash even while far away from the ocean while underground in spectator mode (presumably generating underground water/lava).