Talend CommandLine fails with 'org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed]' on a headless system (no display)

[TalendSolutionExpert]

Talend Version	6.3.x
Summary	Talend CommandLine fails with org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed] on a headless system (no display).
Additional Versions
Product	Talend Data Integration
Component	CommandLine
Problem Description	When trying to use the command line on a "headless" Linux system (system without display), it fails with the exception: !ENTRY org.eclipse.osgi 4 0 2017-11-14 09:13:06.080 !MESSAGE Application error !STACK 1 org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed] at org.eclipse.swt.SWT.error(SWT.java:4467) at org.eclipse.swt.widgets.Display.createDisplay(Display.java:934)
Problem root cause	SWT needs a display.
Solution or Workaround	Install xvfb: > yum install xorg-x11-server-Xvfb Modify the script launching the command line and add the lines: > export DISPLAY=:1 > Xvfb :1 -screen 0 1024x768x16 &
JIRA ticket number