Internal exception: Bad Compressed Data Format

don't duplicate your own post
MC-58433

force a crash by pressing f3+c for 10 seconds

Ill post that when im done with my lunch

Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 6/22/14 11:36 AM
Description: Manually triggered debug crash

java.lang.Throwable
at blj.q(SourceFile:1539)
at blj.ap(SourceFile:861)
at blj.a(SourceFile:303)
at net.minecraft.client.main.Main.main(SourceFile:121)

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

– Head –
Stacktrace:
at bya.a(SourceFile:310)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [cby['awp2000'/203, l='MpServer', x=207.81, y=55.80, z=1444.50]]
Chunk stats: MultiplayerChunkCache: 289, 289
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: 168.00,64.00,244.00 - World: (168,64,244), Chunk: (at 8,4,4 in 10,15; contains blocks 160,0,240 to 175,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 50732 game time, 50732 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: 118 total; [abs['Skeleton'/134859, l='MpServer', x=165.50, y=30.02, z=1484.50], abs['Skeleton'/134858, l='MpServer', x=168.50, y=30.02, z=1483.50], abs['Skeleton'/134857, l='MpServer', x=168.50, y=30.02, z=1485.50], zv['item.item.dyePowder.black'/109001, l='MpServer', x=219.88, y=34.00, z=1383.41], abs['Skeleton'/134860, l='MpServer', x=165.50, y=30.02, z=1485.50], abd['Guardian'/105692, l='MpServer', x=224.41, y=46.00, z=1428.56], zv['item.item.dyePowder.black'/33139, l='MpServer', x=204.00, y=47.00, z=1464.28], zv['item.item.dyePowder.black'/33138, l='MpServer', x=203.13, y=47.00, z=1464.97], zv['item.item.dyePowder.black'/99807, l='MpServer', x=256.66, y=42.00, z=1465.75], abd['Guardian'/81190, l='MpServer', x=215.75, y=44.00, z=1400.56], abd['Guardian'/81188, l='MpServer', x=208.50, y=44.00, z=1408.50], abd['Guardian'/81179, l='MpServer', x=200.56, y=40.00, z=1402.41], abd['Guardian'/207, l='MpServer', x=197.22, y=46.18, z=1440.22], cby['awp2000'/203, l='MpServer', x=207.81, y=55.80, z=1444.50], zc['Squid'/253, l='MpServer', x=146.47, y=55.91, z=1435.13], zv['item.item.dyePowder.black'/68181, l='MpServer', x=262.56, y=48.00, z=1502.63], yn['Bat'/245, l='MpServer', x=136.59, y=17.10, z=1397.75], zc['Squid'/277, l='MpServer', x=163.81, y=49.84, z=1391.81], zc['Squid'/280, l='MpServer', x=165.38, y=45.16, z=1399.63], zc['Squid'/287, l='MpServer', x=164.72, y=60.75, z=1431.13], zc['Squid'/262, l='MpServer', x=149.38, y=45.94, z=1413.00], zc['Squid'/263, l='MpServer', x=153.19, y=48.06, z=1439.78], zc['Squid'/264, l='MpServer', x=146.13, y=49.13, z=1434.84], acf['Zombie'/310, l='MpServer', x=186.50, y=17.00, z=1371.50], yn['Bat'/102659, l='MpServer', x=225.39, y=24.54, z=1504.70], abd['Guardian'/80069, l='MpServer', x=225.13, y=40.00, z=1403.75], abd['Guardian'/317, l='MpServer', x=188.41, y=40.00, z=1396.66], abs['Skeleton'/316, l='MpServer', x=188.50, y=17.00, z=1401.50], abd['Guardian'/319, l='MpServer', x=180.53, y=36.00, z=1436.28], zv['item.item.dyePowder.black'/288, l='MpServer', x=160.13, y=36.00, z=1444.81], aan['Creeper'/289, l='MpServer', x=165.13, y=28.00, z=1466.78], zc['Squid'/290, l='MpServer', x=170.31, y=52.94, z=1473.44], zc['Squid'/291, l='MpServer', x=176.44, y=50.28, z=1466.94], zc['Squid'/292, l='MpServer', x=160.97, y=52.34, z=1480.53], zv['item.item.dyePowder.black'/23084, l='MpServer', x=255.63, y=48.00, z=1446.50], acf['Zombie'/72865, l='MpServer', x=264.50, y=24.00, z=1479.50], zv['item.item.dyePowder.black'/37726, l='MpServer', x=158.63, y=36.00, z=1443.69], aap['Enderman'/72869, l='MpServer', x=265.50, y=24.00, z=1481.50], zv['item.item.dyePowder.black'/37724, l='MpServer', x=160.34, y=36.00, z=1439.38], zc['Squid'/326, l='MpServer', x=175.22, y=61.78, z=1432.47], abd['Guardian'/324, l='MpServer', x=218.25, y=40.24, z=1438.80], zv['item.item.dyePowder.black'/113542, l='MpServer', x=230.19, y=44.00, z=1391.66], zv['item.item.dyePowder.black'/134108, l='MpServer', x=225.12, y=49.80, z=1435.71], yn['Bat'/323, l='MpServer', x=196.67, y=30.33, z=1439.40], abd['Guardian'/80062, l='MpServer', x=230.31, y=37.81, z=1418.50], yn['Bat'/92425, l='MpServer', x=264.45, y=27.66, z=1483.53], zc['Squid'/330, l='MpServer', x=175.25, y=53.75, z=1464.81], zv['item.item.dyePowder.black'/328, l='MpServer', x=179.97, y=36.00, z=1446.22], yn['Bat'/329, l='MpServer', x=188.25, y=18.10, z=1468.25], yn['Bat'/54260, l='MpServer', x=154.49, y=22.44, z=1473.60], abd['Guardian'/372, l='MpServer', x=200.41, y=44.00, z=1422.56], abd['Guardian'/375, l='MpServer', x=196.44, y=40.00, z=1415.41], abd['Guardian'/368, l='MpServer', x=196.75, y=40.00, z=1407.41], abd['Guardian'/371, l='MpServer', x=205.60, y=44.93, z=1432.60], uq['Experience Orb'/370, l='MpServer', x=199.00, y=48.00, z=1400.44], abd['Guardian'/380, l='MpServer', x=221.84, y=55.00, z=1411.22], yn['Bat'/98420, l='MpServer', x=287.34, y=30.07, z=1417.39], abs['Skeleton'/383, l='MpServer', x=197.91, y=35.00, z=1473.38], yn['Bat'/54264, l='MpServer', x=161.32, y=13.52, z=1471.34], zv['item.item.dyePowder.black'/76213, l='MpServer', x=259.34, y=46.00, z=1450.06], abd['Guardian'/379, l='MpServer', x=223.28, y=49.00, z=1432.19], abd['Guardian'/378, l='MpServer', x=233.67, y=60.10, z=1445.10], zv['item.item.dyePowder.black'/119254, l='MpServer', x=221.56, y=34.00, z=1382.63], abd['Guardian'/354, l='MpServer', x=204.94, y=40.00, z=1388.94], abd['Guardian'/365, l='MpServer', x=200.34, y=40.00, z=1395.56], abd['Guardian'/366, l='MpServer', x=201.88, y=40.00, z=1399.09], abd['Guardian'/361, l='MpServer', x=192.41, y=40.00, z=1402.81], abd['Guardian'/362, l='MpServer', x=196.56, y=40.00, z=1404.53], abd['Guardian'/72815, l='MpServer', x=203.50, y=41.00, z=1409.50], abd['Guardian'/411, l='MpServer', x=233.53, y=46.00, z=1436.41], abd['Guardian'/408, l='MpServer', x=230.56, y=33.00, z=1416.13], abd['Guardian'/409, l='MpServer', x=196.03, y=48.00, z=1412.41], abd['Guardian'/412, l='MpServer', x=216.88, y=49.42, z=1461.02], abd['Guardian'/413, l='MpServer', x=210.56, y=48.00, z=1433.38], abd['Guardian'/402, l='MpServer', x=208.44, y=53.00, z=1410.59], abd['Guardian'/401, l='MpServer', x=208.28, y=52.00, z=1405.53], abd['Guardian'/406, l='MpServer', x=220.25, y=56.00, z=1413.41], abd['Guardian'/407, l='MpServer', x=200.56, y=48.02, z=1428.97], abd['Guardian'/405, l='MpServer', x=214.41, y=56.00, z=1413.09], zv['item.item.dyePowder.black'/395, l='MpServer', x=213.69, y=34.00, z=1382.22], abd['Guardian'/399, l='MpServer', x=222.41, y=34.00, z=1397.44], abd['Guardian'/398, l='MpServer', x=219.84, y=44.00, z=1397.75], zv['item.item.dyePowder.black'/397, l='MpServer', x=211.69, y=45.00, z=1394.28], abd['Guardian'/396, l='MpServer', x=173.56, y=54.84, z=1373.97], aan['Creeper'/386, l='MpServer', x=199.69, y=35.00, z=1473.28], abd['Guardian'/72816, l='MpServer', x=208.50, y=44.00, z=1408.50], zv['item.item.dyePowder.black'/441, l='MpServer', x=229.31, y=43.00, z=1409.28], abd['Guardian'/80904, l='MpServer', x=232.41, y=44.00, z=1405.41], zv['item.item.dyePowder.black'/442, l='MpServer', x=235.56, y=44.00, z=1438.34], abd['Guardian'/444, l='MpServer', x=238.75, y=44.00, z=1437.88], abd['Guardian'/447, l='MpServer', x=208.56, y=53.00, z=1415.16], yn['Bat'/433, l='MpServer', x=211.50, y=21.92, z=1385.18], abd['Guardian'/435, l='MpServer', x=224.41, y=40.00, z=1396.53], zv['item.item.dyePowder.black'/436, l='MpServer', x=226.91, y=44.00, z=1406.09], zv['item.item.dyePowder.black'/437, l='MpServer', x=229.84, y=48.00, z=1401.78], zc['Squid'/417, l='MpServer', x=231.78, y=43.97, z=1464.59], zv['item.item.dyePowder.black'/131456, l='MpServer', x=235.30, y=32.00, z=1468.32], zc['Squid'/418, l='MpServer', x=228.91, y=41.19, z=1471.38], zc['Squid'/422, l='MpServer', x=218.19, y=47.63, z=1490.94], zv['item.item.dyePowder.black'/478, l='MpServer', x=261.31, y=31.00, z=1391.47], zv['item.item.dyePowder.black'/479, l='MpServer', x=256.25, y=30.00, z=1381.53], abd['Guardian'/72744, l='MpServer', x=213.97, y=48.17, z=1392.75], zc['Squid'/472, l='MpServer', x=242.69, y=59.72, z=1501.31], abd['Guardian'/466, l='MpServer', x=259.47, y=61.89, z=1462.08], abd['Guardian'/467, l='MpServer', x=244.53, y=41.00, z=1424.00], zv['item.item.dyePowder.black'/464, l='MpServer', x=252.44, y=30.00, z=1420.00], zv['item.item.dyePowder.black'/465, l='MpServer', x=241.28, y=31.00, z=1414.88], zv['item.item.dyePowder.black'/460, l='MpServer', x=252.81, y=31.00, z=1384.66], abd['Guardian'/72765, l='MpServer', x=234.63, y=60.89, z=1376.88], abd['Guardian'/105280, l='MpServer', x=245.59, y=34.53, z=1397.91], abd['Guardian'/105281, l='MpServer', x=238.50, y=44.00, z=1402.50], zc['Squid'/452, l='MpServer', x=231.69, y=53.91, z=1494.53], abd['Guardian'/448, l='MpServer', x=197.20, y=42.05, z=1444.33], zv['item.item.bed'/71750, l='MpServer', x=208.09, y=41.00, z=1444.56], yn['Bat'/79044, l='MpServer', x=192.94, y=21.65, z=1460.41], zc['Squid'/486, l='MpServer', x=263.00, y=48.84, z=1508.16], zc['Squid'/481, l='MpServer', x=268.59, y=52.69, z=1435.59], zv['item.tile.anvil.intact'/34449, l='MpServer', x=208.00, y=41.00, z=1444.47]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bya.a(SourceFile:310)
at blj.b(SourceFile:2134)
at blj.a(SourceFile:312)
at net.minecraft.client.main.Main.main(SourceFile:121)

– System Details –
Details:
Minecraft Version: 14w25b
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1256306680 bytes (1198 MB) / 2108686336 bytes (2011 MB) up to 2108686336 bytes (2011 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2048M -Xms2048M
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
Launched Version: 14w25b
LWJGL: 2.9.1
OpenGL: AMD Radeon HD 8610G GL version 4.2.12422 Compatibility Profile Context 13.152.1.1000, ATI Technologies Inc.
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.

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)

I'm sorry, I don't see the problem in the crash log

Invalid
This issue is caused by server modifications like Spigot or Sponge.