id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12331	"JOSM freezes when clicking ""Report bug"" in the menu bar"	floscher	team	"==== What steps will reproduce the problem?
1. Start JOSM
2. Click `Help` › `Report bug` in the menu bar

==== What is the expected result?

The JOSM website opens with the form for creating a new ticket.

==== What happens instead?

JOSM freezes and can only be closed by killing the processes `josm` and `java`

==== Please provide any additional information below. Attach a screenshot if possible.

'''OS:''' Ubuntu 15.10 64-bit
'''Java:''' OpenJDK 8 64-bit
'''JOSM:''' r9329 without plugins and even after I deleted the `~/.josm`-folder

Command line output is this:
{{{
Using /usr/lib/jvm/java-8-openjdk-amd64/bin/java to execute josm.
INFO: Nutzbares IPv6-Netzwerk erkannt, bevorzuge IPv6 vor IPv4.
INFO: Öffne URL: https://josm.openstreetmap.de/josmticket?gdata=H4sIAAAAAAAAAE2RQXObMBCF7_yKPdpTAxJgQTTTi-NLXDPpxEN6yKQdGTaOWpAYaWGSf1_B9NCTpKd9q--tmqezfCcaZZr-tn5I7IjGk0OkQY1Jh6mfTUpuMn-iJxyt12Tdp2yah6ME1gos90UWt4LxmBWcxVWBZdyyvFLYVdU1v0Zn5Unevytzww6OilBCxriIF4cAXsqcyZzDF8YZg80P7HYQ9JMya9k2Oky67-LV-L9PyDwLvgA1a6-tkXd5dhdOvSI9o2xCLPj5Dzx66NCQftNtuAylcHq81ClP9rBZXNDhFs7aTB_QXCdDE_B9wllU4xCyQuPVbYEuBdQHSANyWSy7TZZVy6r63obGC_h1IngLs9tGJzUrmNGtaMCTKmG_hIi1IXRG9Tt4dKrtEe6tG61bsYIWZn86fgNRxAdNcEEXOsBzHT3XoNxtGkIKL-ElPq5f5dCTcvQ1hMQdBDG8mRikZPJ4-fSEw3dnPzT6teL1L0_2NbfqAQAA
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
java: ../../src/xcb_io.c:274: poll_for_event: Zusicherung »!xcb_xlib_threads_sequence_lost« nicht erfüllt.
}}}
"	defect	closed	major		Core	tested	duplicate	freeze, open URL, linux, xcb