Open “Update-Manager” perspective, right-click on “Sites to Visit”, select “Properties”. In the upcoming dialog, there is an “MyEclipse-XDoclet” section which does not belong there. I’m pretty sure I saw it on other properties-dialogs too, but this is the easiest case to reproduce.
I’m sorry if this has been reported before, but I couldn’t find a reference to this minor bug with the advanced search.
(eclipse 2.1.2, MyEclipse 2.7 RC1, other plug-ins installed: Spindle, vi)