The stack trace icon at the left hand side of the Logback View isn't always displayed. If a logging event with a stack trace is displayed in the view first, the icon is displayed in the first row and the view seems to work normally.

But if an event without a stack trace is displayed first, without an icon, the icon doesn't seem to be displayed for all subsequent rows.

I think this might due to using a virtual table with a label provider that provides null column images. I've changed getColumnImage to return a blank image instead of null if the event doesn't have a stack trace, and that seems to fix the problem.