I'm running Fedora 18 with Gnome 3.6.
I've installed Eclipse manually, and added the menu entry with alacarte. My problem is that even though I have "Favorite"'d the menu entry, it keeps duplicating the entry every time a new instance is launched. See screenshot for example: http://i.stack.imgur.com/rIZQ4.png
Normally, it would group the new instances under one icon. For some reason my menu entry just won't match up. I have tried to rename the menu entry to what the application's title is when starting up but to no avail. I'm not quite sure what is causing this behavior, but would really love some assistance here.