SWT error

[zmsp]

When I try to run using
nohup /usr/local/davmail/davmail.sh /usr/local/davmail/davmail.properties &
inside docker container it gives me this error. I don't know if you are still maintaining it.

Exception in thread "SWT" org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed]
    at org.eclipse.swt.SWT.error(Unknown Source)
    at org.eclipse.swt.widgets.Display.createDisplay(Unknown Source)
    at org.eclipse.swt.widgets.Display.create(Unknown Source)
    at org.eclipse.swt.graphics.Device.<init>(Unknown Source)
    at org.eclipse.swt.widgets.Display.<init>(Unknown Source)
    at org.eclipse.swt.widgets.Display.<init>(Unknown Source)
    at davmail.ui.tray.SwtGatewayTray$5.run(SwtGatewayTray.java:202)

[gondoi]

No I have not maintained this for a while since I have not had the need to run this. I could certainly give updating this a shot. If you would like to try and clean it up, I'd be willing to bet it needs to be updated to the latest version of davmail since this Dockerfile is pulling down a pretty old version.