When bringing up the source window for a process where the source code is not available(such as bash), nothing appears in the source pane and no title appears at the top of the window. After clicking on a frame, then the window gets populated and all appears well.
2007-03-07 Mike Cvet <mcvet@redhat.com> * SourceWindow.java (populateStackBrowser): Make sure to populate assembly on window creation, fixing #4167.