I was able to get the java support for the shared editor working
this morning. Here is a screenshot:
http://kengilmer.com/shared_editor/s6.jpg. There were some
minor behavioral differences between the standard text editor and the
Java editor that made this a little tricker than I expected.
Note, this *should* work with any code editor (ruby, C++) as there is
no references to the JDT, but I haven't tested that yet.