What is the Java Internationalization and Localization Toolkit/Where can I get it?

The JIL Toolkit was developed by Sun's Technical Development Center. It basically contains four tools with a Swing interface that allow ( quote ):

Checking Java files for methods, classes, class constants, and strings that are locale-specific.
Checking for hard-coded or inconsistent message strings.
Translating message strings and protecting strings that should not be translated.
Generating new resource bundles.

in an automated and interactive way.