Fix Eclipse icon (not displayed, too big) in Unity Dash on Ubuntu 12.10
It seems that the regular methods of merely creating eclipse.desktop (specifying Icon path as icon.xpm in the decompressed folder of Eclipse) which applied to Ubuntu 12.04 does not work on 12.10. The problem is that the icon is too big for Dash to render.
The huge icon can be obviously seen in “Dash Home” search results and /usr/share/applications/ folder.
Someone has already reported this as a bug at https://bugs.launchpad.net/ubuntu/+source/dash/+bug/1068702 .
Found the simplest solution here.
Copy icon.xpm (from eclipse folder) into ~/.local/share/icons/eclipse4.xpm
In your eclipse.desktop file (which should be in ~/.local/share/applications instead of /usr/share/…), replace Icon=/path/to/eclipse/icon.xpm by Icon=eclipse4. You don’t need to add the .xpm suffix.
The eclipse.desktop will thus be something like this:
[Desktop Entry]
Version=1.0
Name=Eclipse
GenericName=Integrated Development Application
Comment=Eclipse Juno
Exec=/usr/local/bin/eclipse
TryExec=/usr/local/bin/eclipse
Icon=eclipse4
Terminal=false
Type=Application
Categories=Development;IDE;