Eclipse menus are cut off in ubuntu 13.10

1. Open your eclipse.desktop file

sudo -H gedit /usr/share/applications/eclipse.desktop

2. Replace the Exec= line with this

Exec=env UBUNTU_MENUPROXY= eclipse

(If you can't find it in this path, try in ~/.local/share/applications/eclipse.desktop. Otherwise, you could have to find yours using locate command).

NOTE: If you can't find your eclipse.desktop file, you can simply create one from scratch in the above path, and fill it with these lines:

[Desktop Entry] 
Type=Application 
Name=Eclipse 
Icon=eclipse 
Exec=env UBUNTU_MENUPROXY= eclipse 
Terminal=false 
Categories=Development;IDE;Java;

3. Save the file