For some reason Ubuntu does't include the latest version of Eclipse in the repositories. In order to install or upgrade to latest version we can do the following:
1 - Install Eclipse from repositories. It will install Eclipse 3.5 Galileo. This is the easy way to get the integration with the system: configuration, icons, launchers from the menu and this kind of staff. If you already have an old Eclipse installed and you just want to update it, skip this step.
2 - Download the latest version of eclipse from its web site. Choose the best version for you in this page http://www.eclipse.org/downloads/compare.php
3 - Unzip the downloaded file in your desktop. The folder "eclipse" contains a full installation of eclipse. You can use it directly from the desktop just by double-clicking the file named "eclipse". Now we will substitute the previous version installed via Ubuntu for this new one.
3 - Remove the old installation of eclipse. You can do a backup of the directory if you want to preserve any plugin or whatever.
#tar -zcvf ~/Desktop/eclipse.backup /usr/lib/eclipse
#sudo rm -Rf /usr/lib/eclipse
4 - Put the new installation in its place
#sudo mv ~/Desktop/eclipse /usr/lib/eclipse
5 - Change the eclipse.ini file
#sudo cp /usr/lib/eclipse/eclipse.ini /etc/eclipse.ini
#sudo mv /usr/lib/eclipse/eclipse.ini /usr/lib/eclipse/eclipse.ini.bak
#sudo ln -s /etc/eclipse.ini /usr/lib/eclipse/eclipse.ini
6 - Tune the launcher
#sudo sed -i 's:galileo:indigo:g' /usr/bin/eclipse
#sudo sed -i 's:Galileo:Indigo:g' /usr/bin/eclipse
7 - Enjoy! Your Eclipse installation is accessible from any icon or menu item you had. Check if you have to install plugins.
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