We have done tests to see if the getEdgeViewClass() method actually does
return null, but it doesn't seem to do that...so is there any other
examples of where we can look?
We're not sure if the actual mapping is wrong, because when we run our
editor we seem to be able to draw all our desired links at first, but when
you release the mouse button to actually place the link, it's never
drawn/displayed (except in the first case though, as always...). Also, if
we try to place a "forbidden" link, the editor tells us that this can't be
done, so that seems OK too...just not the actual drawing/displaying of the
allowed links.