Hello All,

We are currently working on SWTBot for our plugin UI tests and we were able
to successfully integrate with Jenkins and the test cases were passing
without any issues but recently we started facing some issue where in
between the SWTBot test execution the whole build just gets hung forever.

Initially we were thinking that the problem is with the virtual display
which we started with Xvfb process but then simple SWTBot testcase with
just 2-5 lines works without any issues and anything more than 5 lines the
entire build gets hung during the execution of the SWTBot testcase.

Can someone please help me in this? What is the reason for this issue?
Tried using the SWTUtils.captureScreenshot("3.png") to get the screenshot
and it shows up the eclipse launch with the plugin opened but no process
happens once it gets hung.

Logs which use to show up is this,

Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message
with a timestamp of 0 for 0x800b64 (New Projec)*18:12:18* Window
manager warning: meta_window_activate called by a pager with a 0
timestamp; the pager needs to be fixed.*18:12:19* Window manager
warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a
timestamp of 0 for 0x801124 (Open Assoc)*18:12:19* Window manager
warning: meta_window_activate called by a pager with a 0 timestamp;
the pager needs to be fixed.*18:12:19* Window manager warning: Buggy
client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for
0x800058 (Java - Ecl)*18:12:19* Window manager warning:
meta_window_activate called by a pager with a 0 timestamp; the pager
needs to be fixed.*18:12:20* Window manager warning: Buggy client sent
a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x800058 (Java
- Ecl)*18:12:20* Window manager warning: meta_window_activate called
by a pager with a 0 timestamp; the pager needs to be fixed.*20:42:45*
Dec 5, 2013 8:42:45 PM java.util.prefs.FileSystemPreferences$7
run*20:42:45* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml*20:50:15*
Dec 5, 2013 8:50:15 PM java.util.prefs.FileSystemPreferences$7
run*20:50:15* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml*20:57:15*
Dec 5, 2013 8:57:15 PM java.util.prefs.FileSystemPreferences$7
run*20:57:15* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml*00:26:15*
Dec 6, 2013 12:26:15 AM java.util.prefs.FileSystemPreferences$7
run*00:26:15* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml*02:10:15*
Dec 6, 2013 2:10:15 AM java.util.prefs.FileSystemPreferences$7
run*02:10:15* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml*04:02:17*
Dec 6, 2013 4:02:17 AM java.util.prefs.FileSystemPreferences$7
run*04:02:17* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/prefs.xml*04:02:17*
Dec 6, 2013 4:02:17 AM java.util.prefs.FileSystemPreferences$7
run*04:02:17* WARNING: Prefs file removed in background
/home/unify_ci/.java/.userPrefs/_!':!bw"t!#4!bg"z!'4!.g"v!(:!cw!u!'0!~!"r/pm/prefs.xml


When I try to kill the build it shows up the error as *XOpenDisplay()
failed * at times.


Any idea what is the reason for this issue? Can someone please help me
asap on this since we are got stuck up with the issue for 2 long days
:(


-- 
Best Regards,
Melwyn Jensen.
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