Hi, one-line typo fixes like this aren't worth bothering with, particularly since the constructor isn't public. If you want to help, I would suggest either doing a more extensive spell-checking pass, or figure out how to say something more useful.
In this case, it looks like all CellTreeNodeViews in the same tree have the same "messages" variable and it's the one passed into CellTree's constructor, so you could say something about that. http://gwt-code-reviews.appspot.com/1845804/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
