for some reason, the game will play 2 songs at the time.
log:
Completely ignored arguments: [--nativeLauncherVersion, 301]
[19:25:44] [Client thread/INFO]: Setting user: Player
[19:25:51] [Client thread/WARN]: Skipping bad option: lastServer:
[19:25:51] [Client thread/INFO]: LWJGL Version: 2.9.4
[19:25:52] [Client thread/INFO]: Reloading ResourceManager: Default
[19:25:56] [Sound Library Loader/INFO]: Starting up SoundSystem...
[19:25:57] [Thread-5/INFO]: Initializing LWJGL OpenAL
[19:25:57] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[19:25:57] [Thread-5/INFO]: OpenAL initialized.
[19:25:57] [Sound Library Loader/INFO]: Sound engine started
[19:26:07] [Client thread/INFO]: Created: 1024x512 textures-atlas
[19:26:17] Realms Notification Availability checker #1/INFO: Could not authorize you against Realms server: Invalid session id
[19:26:24] [Server thread/INFO]: Starting integrated minecraft server version 1.10
[19:26:24] [Server thread/INFO]: Generating keypair
[19:26:25] [Server thread/INFO]: Preparing start region for level 0
[19:26:27] [Server thread/INFO]: Preparing spawn area: 0%
[19:26:28] [Server thread/INFO]: Preparing spawn area: 12%
[19:26:29] [Server thread/INFO]: Preparing spawn area: 29%
[19:26:30] [Server thread/INFO]: Preparing spawn area: 54%
[19:26:31] [Server thread/INFO]: Preparing spawn area: 76%
[19:26:33] [Server thread/INFO]: Changing view distance to 6, from 10
[19:26:36] [Server thread/INFO]: Player[local:E:c85d17e2] logged in with entity id 144 at (-25.454707446822063, 69.0, -63.32618831042654)
[19:26:36] [Server thread/INFO]: Player joined the game
[19:26:38] [Server thread/INFO]: Saving and pausing game...
[19:26:38] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:26:40] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:26:40] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:26:42] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6817ms behind, skipping 136 tick(s)
[19:26:44] [Server thread/INFO]: Saving and pausing game...
[19:26:45] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:26:45] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:26:45] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:26:54] [Server thread/INFO]: Saving and pausing game...
[19:26:54] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:26:54] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:26:54] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:26:55] [Server thread/INFO]: Stopping server
[19:26:55] [Server thread/INFO]: Saving players
[19:26:55] [Server thread/INFO]: Saving worlds
[19:26:55] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:26:55] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:26:55] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:26:58] [Client thread/INFO]: Deleting level Demo_World
[19:26:58] [Client thread/INFO]: Attempt 1...
java.io.IOException: Stream Closed
at java.io.RandomAccessFile.seek0(Native Method)
at java.io.RandomAccessFile.seek(RandomAccessFile.java:540)
at ath.a(SourceFile:320)
at ath.a(SourceFile:260)
at ath$a.close(SourceFile:241)
at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:241)
at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
at atj.b(SourceFile:148)
at atj.c(SourceFile:133)
at bbu.c(SourceFile:37)
at bbu.run(SourceFile:30)
at java.lang.Thread.run(Thread.java:745)
java.io.IOException: Stream Closed
at java.io.RandomAccessFile.length(Native Method)
at ath.a(SourceFile:300)
at ath$a.close(SourceFile:241)
at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:241)
at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
at atj.b(SourceFile:148)
at atj.c(SourceFile:133)
at bbu.c(SourceFile:37)
at bbu.run(SourceFile:30)
at java.lang.Thread.run(Thread.java:745)
[19:26:59] [Server thread/INFO]: Starting integrated minecraft server version 1.10
[19:26:59] [Server thread/INFO]: Generating keypair
[19:27:02] [Server thread/INFO]: Preparing start region for level 0
[19:27:03] [Server thread/INFO]: Preparing spawn area: 3%
[19:27:04] [Server thread/INFO]: Preparing spawn area: 5%
[19:27:05] [Server thread/INFO]: Preparing spawn area: 7%
[19:27:06] [Server thread/INFO]: Preparing spawn area: 9%
[19:27:07] [Server thread/INFO]: Preparing spawn area: 11%
[19:27:08] [Server thread/INFO]: Preparing spawn area: 12%
[19:27:09] [Server thread/INFO]: Preparing spawn area: 15%
[19:27:10] [Server thread/INFO]: Preparing spawn area: 17%
[19:27:11] [Server thread/INFO]: Preparing spawn area: 20%
[19:27:12] [Server thread/INFO]: Preparing spawn area: 22%
[19:27:13] [Server thread/INFO]: Preparing spawn area: 25%
[19:27:14] [Server thread/INFO]: Preparing spawn area: 28%
[19:27:16] [Server thread/INFO]: Preparing spawn area: 29%
[19:27:17] [Server thread/INFO]: Preparing spawn area: 32%
[19:27:18] [Server thread/INFO]: Preparing spawn area: 33%
[19:27:19] [Server thread/INFO]: Preparing spawn area: 35%
[19:27:20] [Server thread/INFO]: Preparing spawn area: 37%
[19:27:21] [Server thread/INFO]: Preparing spawn area: 40%
[19:27:22] [Server thread/INFO]: Preparing spawn area: 42%
[19:27:23] [Server thread/INFO]: Preparing spawn area: 45%
[19:27:24] [Server thread/INFO]: Preparing spawn area: 47%
[19:27:25] [Server thread/INFO]: Preparing spawn area: 49%
[19:27:26] [Server thread/INFO]: Preparing spawn area: 53%
[19:27:27] [Server thread/INFO]: Preparing spawn area: 56%
[19:27:28] [Server thread/INFO]: Preparing spawn area: 58%
[19:27:29] [Server thread/INFO]: Preparing spawn area: 60%
[19:27:30] [Server thread/INFO]: Preparing spawn area: 63%
[19:27:31] [Server thread/INFO]: Preparing spawn area: 64%
[19:27:32] [Server thread/INFO]: Preparing spawn area: 67%
[19:27:34] [Server thread/INFO]: Preparing spawn area: 70%
[19:27:35] [Server thread/INFO]: Preparing spawn area: 74%
[19:27:36] [Server thread/INFO]: Preparing spawn area: 76%
[19:27:37] [Server thread/INFO]: Preparing spawn area: 79%
[19:27:38] [Server thread/INFO]: Preparing spawn area: 83%
[19:27:39] [Server thread/INFO]: Preparing spawn area: 86%
[19:27:40] [Server thread/INFO]: Preparing spawn area: 90%
[19:27:41] [Server thread/INFO]: Preparing spawn area: 94%
[19:27:42] [Server thread/INFO]: Preparing spawn area: 97%
[19:27:43] [Server thread/INFO]: Changing view distance to 6, from 10
[19:27:48] [Server thread/INFO]: Player[local:E:063189c5] logged in with entity id 591 at (-10.5, 67.0, -50.5)
[19:27:48] [Server thread/INFO]: Player joined the game
[19:27:48] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4833ms behind, skipping 96 tick(s)
[19:27:55] [Server thread/INFO]: Saving and pausing game...
[19:27:55] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:27:57] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:27:57] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:28:03] [Client thread/INFO]: [CHAT] Use W, A, S, D and the mouse to move around
[19:28:06] [Client thread/INFO]: [CHAT] Jump by pressing SPACE
[19:28:08] [Server thread/INFO]: Saving and pausing game...
[19:28:08] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:28:08] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:28:08] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:28:13] [Client thread/INFO]: [CHAT] Use E to open your inventory
[19:28:19] [Server thread/INFO]: Saving and pausing game...
[19:28:19] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:28:20] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:28:20] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:28:26] [Server thread/INFO]: Stopping server
[19:28:26] [Server thread/INFO]: Saving players
[19:28:26] [Server thread/INFO]: Saving worlds
[19:28:26] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Overworld
[19:28:26] [Server thread/INFO]: Saving chunks for level 'Demo_World'/Nether
[19:28:26] [Server thread/INFO]: Saving chunks for level 'Demo_World'/The End
[19:28:28] [Client thread/INFO]: Stopping!
[19:28:28] [Client thread/INFO]: SoundSystem shutting down...
[19:28:28] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release