[news.eclipse.platform.swt] Invisible root TreeItem?

["Joel Chen" <joel_chen@xxxxxxxxx>]

Is is possible to create a TreeItem that's invisble to serve as the root 
item?  I found myself end up with a bunch of functions with identical body 
but one takes Tree and another takes TreeItem in its parameters.  I could 
get around this by just creating a rootTreeItem but now I lost some space in 
the left margin in my tree display.