Why is the Print menu item disabled in Eclipse on GTK (Linux, UNIX)?
GTK+ began supporting printing in version 2.10. To print in Eclipse, you need to have Eclipse version 3.3 or later, and at least GTK+ 2.10.0. To determine what GTK+ version you are running, type: rpm -q gtk2. Prior to Eclipse 3.3, printing was not implemented on GTK; however you can use the External Tools support in Eclipse to print files using lpr or some other printing utility. See here for the steps to set this up.