Version: unspecified (using Devel) OS: Linux If system tray support is switched off (e.g. for FreeRapid) in application settings, the empty window disappears. Reproducible: Always Steps to Reproduce: Start any java application with system tray support (e.g. FreeRapid).
Are you using Qt 4.7?
I guess so. sergei@mushu:~/$ sudo dpkg --list 'libqt4*' Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Имя Версия Описание +++-========================-========================-================================================================ rc libqt4-assistant 4:4.6.2-0ubuntu5 Qt 4 assistant module un libqt4-core <нет> (описание недоступно) ii libqt4-dbus 4:4.7.0~beta1+git2010052 Qt 4 D-Bus module ii libqt4-designer 4:4.7.0~beta1+git2010052 Qt 4 designer module un libqt4-dev <нет> (описание недоступно) un libqt4-gui <нет> (описание недоступно) ii libqt4-help 4:4.7.0~beta1+git2010052 Qt 4 help module ii libqt4-network 4:4.7.0~beta1+git2010052 Qt 4 network module ii libqt4-opengl 4:4.7.0~beta1+git2010052 Qt 4 OpenGL module ii libqt4-qt3support 4:4.7.0~beta1+git2010052 Qt 3 compatibility library for Qt 4 ii libqt4-script 4:4.7.0~beta1+git2010052 Qt 4 script module ii libqt4-scripttools 4:4.7.0~beta1+git2010052 Qt 4 script tools module ii libqt4-sql 4:4.7.0~beta1+git2010052 Qt 4 SQL module ii libqt4-sql-mysql 4:4.7.0~beta1+git2010052 Qt 4 MySQL database driver un libqt4-sql-odbc <нет> (описание недоступно) un libqt4-sql-psql <нет> (описание недоступно) ii libqt4-sql-sqlite 4:4.7.0~beta1+git2010052 Qt 4 SQLite 3 database driver un libqt4-sql-sqlite2 <нет> (описание недоступно) ii libqt4-svg 4:4.7.0~beta1+git2010052 Qt 4 SVG module ii libqt4-test 4:4.7.0~beta1+git2010052 Qt 4 test module ii libqt4-webkit 4:4.7~beta1+git20100522- Qt 4 WebKit module ii libqt4-xml 4:4.7.0~beta1+git2010052 Qt 4 XML module ii libqt4-xmlpatterns 4:4.7.0~beta1+git2010052 Qt 4 XML patterns module
*** This bug has been marked as a duplicate of bug 240841 ***