mojira.dev
MC-77095

Exceptions in Console when quitting/entering the game: java.util.concurrent.FutureTask.report

Resolved
Awaiting Response
6

When entering a world in Realms or a server the console sometimes gets spammed with:

1.8.2-pre6

[10:11:14] [Client thread/INFO]: Setting user: Kumasasa
[10:11:14] [Client thread/INFO]: (Session ID is token:b169d5f70d1746778d0293048e5e0917:212c6adb6aad4b04ab210d52a98931c0)
[10:11:16] [Client thread/INFO]: LWJGL Version: 2.9.3
[10:11:17] [Client thread/INFO]: Reloading ResourceManager: Default
[10:11:17] [Sound Library Loader/INFO]: Starting up SoundSystem...
[10:11:18] [Thread-6/INFO]: Initializing LWJGL OpenAL
[10:11:18] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[10:11:18] [Thread-6/INFO]: OpenAL initialized.
[10:11:18] [Sound Library Loader/INFO]: Sound engine started
[10:11:22] [Client thread/INFO]: Created: 512x512 textures-atlas
[10:11:32] [Client thread/INFO]: Realms library version == 1.7.8-pre2
[10:11:33] [MCO Availability Checker #1/INFO]: Realms is available for this user
[10:11:57] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at h.a(SourceFile:61) [1.8.2-pre6.jar:?]
	at avf.au(SourceFile:878) [1.8.2-pre6.jar:?]
	at avf.a(SourceFile:323) [1.8.2-pre6.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.2-pre6.jar:?]
Caused by: java.lang.NullPointerException
	at gw.a(SourceFile:153) ~[1.8.2-pre6.jar:?]
	at bcz.a(SourceFile:355) ~[1.8.2-pre6.jar:?]
	at gw.a(SourceFile:144) ~[1.8.2-pre6.jar:?]
	at gw$b.a(SourceFile:21) ~[1.8.2-pre6.jar:?]
	at fi$1.run(SourceFile:13) ~[1.8.2-pre6.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at h.a(SourceFile:60) ~[1.8.2-pre6.jar:?]
	... 3 more
[10:11:57] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at h.a(SourceFile:61) [1.8.2-pre6.jar:?]
	at avf.au(SourceFile:878) [1.8.2-pre6.jar:?]
	at avf.a(SourceFile:323) [1.8.2-pre6.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.2-pre6.jar:?]
Caused by: java.lang.NullPointerException
	at hg.a(SourceFile:42) ~[1.8.2-pre6.jar:?]
	at bcz.a(SourceFile:374) ~[1.8.2-pre6.jar:?]
	at hg.a(SourceFile:38) ~[1.8.2-pre6.jar:?]
	at hg.a(SourceFile:11) ~[1.8.2-pre6.jar:?]
	at fi$1.run(SourceFile:13) ~[1.8.2-pre6.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at h.a(SourceFile:60) ~[1.8.2-pre6.jar:?]
	... 3 more
[10:11:57] [Client thread/FATAL]: Error executing task

1.8.2-pre7

[17:59:49] [Client thread/INFO]: Setting user: Kumasasa
[17:59:49] [Client thread/INFO]: (Session ID is token:c4cef29a5ab94c5f97380f862ce93d68:212c6adb6aad4b04ab210d52a98931c0)
[17:59:51] [Client thread/INFO]: LWJGL Version: 2.9.4
[17:59:53] [Client thread/INFO]: Reloading ResourceManager: Default, Misa Patch Les 1.8.zip, Misa.zip, XDBMisaPatchV1.4.zip
[17:59:53] [Client thread/WARN]: ResourcePack: ignored non-lowercase namespace: %s in %s
[17:59:56] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:59:57] [Thread-6/INFO]: Initializing LWJGL OpenAL
[17:59:57] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[17:59:57] [Thread-6/INFO]: OpenAL initialized.
[17:59:57] [Sound Library Loader/INFO]: Sound engine started
[18:00:20] [Client thread/INFO]: Created: 2048x2048 textures-atlas
[18:00:43] [Client thread/INFO]: Realms library version == 1.7.8-pre3
[18:00:44] [MCO Availability Checker #1/INFO]: Realms is available for this user
[18:00:54] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at h.a(SourceFile:61) [1.8.2-pre7.jar:?]
	at avf.au(SourceFile:878) [1.8.2-pre7.jar:?]
	at avf.a(SourceFile:323) [1.8.2-pre7.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.2-pre7.jar:?]
Caused by: java.lang.NullPointerException
	at gj.a(SourceFile:42) ~[1.8.2-pre7.jar:?]
	at bcz.a(SourceFile:655) ~[1.8.2-pre7.jar:?]
	at gj.a(SourceFile:38) ~[1.8.2-pre7.jar:?]
	at gj.a(SourceFile:11) ~[1.8.2-pre7.jar:?]
	at fi$1.run(SourceFile:13) ~[1.8.2-pre7.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at h.a(SourceFile:60) ~[1.8.2-pre7.jar:?]
	... 3 more
[18:00:54] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at h.a(SourceFile:61) [1.8.2-pre7.jar:?]
	at avf.au(SourceFile:878) [1.8.2-pre7.jar:?]
	at avf.a(SourceFile:323) [1.8.2-pre7.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.2-pre7.jar:?]
Caused by: java.lang.NullPointerException
	at hg.a(SourceFile:42) ~[1.8.2-pre7.jar:?]
	at bcz.a(SourceFile:374) ~[1.8.2-pre7.jar:?]
	at hg.a(SourceFile:38) ~[1.8.2-pre7.jar:?]
	at hg.a(SourceFile:11) ~[1.8.2-pre7.jar:?]
	at fi$1.run(SourceFile:13) ~[1.8.2-pre7.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at h.a(SourceFile:60) ~[1.8.2-pre7.jar:?]
	... 3 more
[18:03:35] [Client thread/INFO]: Stopping!
[18:03:35] [Client thread/INFO]: SoundSystem shutting down...
[18:03:36] [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
[23:23:12] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at g.a(SourceFile:61) [1.8.7.jar:?]
	at ave.av(SourceFile:880) [1.8.7.jar:?]
	at ave.a(SourceFile:325) [1.8.7.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.7.jar:?]
Caused by: java.lang.NullPointerException
	at gv.a(SourceFile:153) ~[1.8.7.jar:?]
	at bcy.a(SourceFile:355) ~[1.8.7.jar:?]
	at gv.a(SourceFile:144) ~[1.8.7.jar:?]
	at gv$a.a(SourceFile:61) ~[1.8.7.jar:?]
	at fh$1.run(SourceFile:13) ~[1.8.7.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at g.a(SourceFile:60) ~[1.8.7.jar:?]
	... 3 more
[23:23:12] [Client thread/FATAL]: Error executing task

1.8.8

[22:50:38] [Client thread/INFO]: Realms library version == 1.7.31
[22:50:40] [MCO Availability Checker #1/INFO]: Realms is available for this user
...
[23:53:39] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at g.a(SourceFile:45) [1.8.8.jar:?]
	at ave.av(SourceFile:881) [1.8.8.jar:?]
	at ave.a(SourceFile:325) [1.8.8.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.8.jar:?]
Caused by: java.lang.NullPointerException
	at bcy.a(SourceFile:277) ~[1.8.8.jar:?]
	at hm.a(SourceFile:66) ~[1.8.8.jar:?]
	at hm.a(SourceFile:9) ~[1.8.8.jar:?]
	at fh$1.run(SourceFile:13) ~[1.8.8.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at g.a(SourceFile:44) ~[1.8.8.jar:?]
	... 3 more
[23:53:39] [Client thread/FATAL]: Error executing task

Have no clear steps to reproduce, happens sometimes and sometimes not.

Linked issues

is duplicated by 11

relates to 1

Comments 6

T E

I got almost the same exception couple times a second (untill it crashes), while playing normal multi player.

[17:08:57] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_40-ea]
at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_40-ea]
at h.a(SourceFile:61) [1.8.3.jar:?]
at avf.av(SourceFile:880) [1.8.3.jar:?]
at avf.a(SourceFile:325) [1.8.3.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.3.jar:?]
Caused by: java.lang.NullPointerException
at bcz.a(SourceFile:301) ~[1.8.3.jar:?]
at fq.a(SourceFile:75) ~[1.8.3.jar:?]
at fq.a(SourceFile:16) ~[1.8.3.jar:?]
at fi$1.run(SourceFile:13) ~[1.8.3.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_40-ea]
at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_40-ea]
at h.a(SourceFile:60) ~[1.8.3.jar:?]
... 3 more
AL lib: (EE) alc_cleanup: 1 device not closed

thgilfodrol

Can confirm happens in 15w51b, was not able to reproduce with subsequent connections.

This message is repeated over a hundred times in the launcher console output when connecting to a server I own:

15w51b

[06:27:56] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at g.a(SourceFile:46) [15w51b.jar:?]
	at bcb.as(SourceFile:934) [15w51b.jar:?]
	at bcb.a(SourceFile:386) [15w51b.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:122) [15w51b.jar:?]
Caused by: java.lang.NullPointerException
	at hg.a(SourceFile:42) ~[15w51b.jar:?]
	at bkh.a(SourceFile:516) ~[15w51b.jar:?]
	at hg.a(SourceFile:38) ~[15w51b.jar:?]
	at hg.a(SourceFile:11) ~[15w51b.jar:?]
	at fh$1.run(SourceFile:13) ~[15w51b.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at g.a(SourceFile:45) ~[15w51b.jar:?]
	... 3 more
[06:27:56] [Client thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_25]
	at g.a(SourceFile:46) [15w51b.jar:?]
	at bcb.as(SourceFile:934) [15w51b.jar:?]
	at bcb.a(SourceFile:386) [15w51b.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:122) [15w51b.jar:?]
Caused by: java.lang.NullPointerException
	at gu.a(SourceFile:153) ~[15w51b.jar:?]
	at bkh.a(SourceFile:497) ~[15w51b.jar:?]
	at gu.a(SourceFile:144) ~[15w51b.jar:?]
	at gu$b.a(SourceFile:21) ~[15w51b.jar:?]
	at fh$1.run(SourceFile:13) ~[15w51b.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_25]
	at g.a(SourceFile:45) ~[15w51b.jar:?]
	... 3 more

Client System Environment:

  • MC 15w51b

  • Java 8 Update 25

  • Windows 8.1 64bit

  • AMD FX6300 3.5GHz 6-core cpu

  • 12GB ram, 1GB allocated to client

  • AMD r9 280 gpu

Server System Environment:

  • MC 15w51b

  • Can't remember the specific java version, but should be latest Java 8 stable release as of 3 days ago

  • Ubuntu 14.04 64bit VPS

  • 2GB ram, 1.5gb allocated to server

  • Intel Xeon e3 cpu, 1 core granted

Bren Rado

This also happens in singleplayer.

kumasasa

Yes, it's not really a difference.

bob

Is this still an issue in the latest snapshot 16w44a? If so please update the affected versions.

This is an automated comment on any open or reopened issue with out-of-date affected versions.

Uriel Salischiker

Is this still a issue in the latest version of the game(currently 1.13.1)?

If so, please add it to the affected versions, thanks!

kumasasa

(Unassigned)

Community Consensus

Minecraft 1.8.2-pre6, Minecraft 1.8.2-pre7, Minecraft 1.8.3, Minecraft 1.8.7, Minecraft 1.8.8, ..., Minecraft 1.9.4, Minecraft 1.10, Minecraft 1.11.2, Minecraft 1.12.1, Minecraft 1.12.2

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