Last night, I allowed updates to MyEclipse to update both Matisse and something else. Everything appeared to be alright but when I restared Eclipse the first time this morning, I got some could not open editor errors (identifying all the jsp editors as unloaded).
Per an FAQ, I closed all editors, closed Eclipse and restarted Eclipse directly. Although Eclipse does appear to be in MyEclipse Java Enterprise Development, the MyEclipse perspective is gone as well as the MyEclipse menu item in the project properties window.
The Eclispe Product Configuration now only shows MyEclipse 6.0.0 M1 with other products gone and within that configuration, only the Matisse4MyEclipse Swing UI Designer 5.9.100 appears to be the only thing installed.
HELP
Supplemental Information: Behavior
When I launch Eclipse directly, it comes up fine. When I attempt to launch Eclipse thru the shortcut created with MyEclipse was installed, I see the splash screen but Eclipse will not start.
Searching for upgrades reports that eclipse.core is not insalled.
How do I recover from this gracefully?