I\'m needing to install the eclipse JDT.Core plugin locally (eg download the file with site.xml etc), as opposed to installing it remotely due to the horrible firewall at wo
I am not sure I ever saw an installation of jdt.core, since it is included in most of the eclipse distros (either Eclipse 3.5 Galileo or Eclipse 3.6 Helios)
That being said, the jdt core update site is part of the global Eclipse update sites, and I don't think you can easily download just the jdt.core part.
The easiest way would still be to download a full distro with JDT already included in it.
I assume you are using Aptana, well like VonC said I don't know if there is a JDT core download site link but I personally did something else that worked for me.
on eclipse or aptana
Hope it works for you
Find the jdt jar from the following location.
http://www.findjar.com/jar/eclipse/jars/jdtcore-3.0.1.jar.html
Just add this to your project library.
Enjoy !!!!
Go to Help > Install new software and add http://download.eclipse.org/releases/[your release e.g. indigo]
Under the Programming Languages section, select Eclipse Java Development Tools.
Worked for me