I recently tried to update Eclipse Luna to Mars via the Eclipse-internal updates. However, this somehow corrupted the Eclipse.app file, which caused this extremely specific and detailed message when opening it:
Because I was unable to find any direct help, I simply downloaded a fresh copy of Eclipse Mars, and everything worked fine (except for the fact that I had to re-install all plugins).
Today I tried to install a plugin called Eclipse Optimizer, and after manually restarting eclipse, the error appeared again. This time I checked both the Apple Error Console and the Eclipse.app file itself, which revealed that there is nothing but the file Contents/MacOS/eclipse.ini inside.
I am running on OS X Yosemite 10.10.4 and Eclipse Mars 4.5.
