java assert failure: java: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

[Brian Curtis]

Launching minecraft with java 1.8 error

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: openjdk-8-jre-headless 8u66-b01-4
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19-0ubuntu1
Architecture: amd64
AssertionMessage: java: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
CrashCounter: 1
CurrentDesktop: Unity
Date: Wed Sep 30 10:33:18 2015
ExecutablePath: /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
InstallationDate: Installed on 2015-04-30 (152 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcCmdline: java -Xmx1024M -Xms512M -cp Minecraft.jar net.minecraft.bootstrap.Bootstrap
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 XDG_RUNTIME_DIR=<set>
Signal: 6
SourcePackage: openjdk-8
StacktraceTop:
 __assert_fail_base (fmt=0x7f4b7e7ca028 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f4b5ef52ae0 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f4b5ef5292b "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f4b5ef52de8 "poll_for_event") at assert.c:92
 __GI___assert_fail (assertion=0x7f4b5ef52ae0 "!xcb_xlib_threads_sequence_lost", file=0x7f4b5ef5292b "../../src/xcb_io.c", line=274, function=0x7f4b5ef52de8 "poll_for_event") at assert.c:101
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: java assert failure: java: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
UpgradeStatus: Upgraded to wily on 2015-09-17 (12 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=0x7f4b7e7ca028 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f4b5ef52ae0 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f4b5ef5292b "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f4b5ef52de8 <__PRETTY_FUNCTION__.14536> "poll_for_event") at assert.c:92
 __GI___assert_fail (assertion=assertion@entry=0x7f4b5ef52ae0 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f4b5ef5292b "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f4b5ef52de8 <__PRETTY_FUNCTION__.14536> "poll_for_event") at assert.c:101
 poll_for_event (dpy=dpy@entry=0x7f4b785664f0) at ../../src/xcb_io.c:271
 poll_for_response (dpy=dpy@entry=0x7f4b785664f0) at ../../src/xcb_io.c:289
 _XEventsQueued (dpy=dpy@entry=0x7f4b785664f0, mode=mode@entry=2) at ../../src/xcb_io.c:363

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Matthias Klose (doko)]

please recheck with 16.04 LTS; if the problem persists, please report the issue where you downloaded the application