RSSU is perfect for building Java based RSS aggregators. It parses any version of RSS (.91, .92, 1.0 and 2.0) from a stream, URL or file into an intuitive tree of Java objects. If you don't know the version of the RSS feed (as you often don't when aggregating feeds), just use the AutoParser, and it will figure it out for you.
RSSU supports and exposes all known tags in all RSS versions, including image tags, and will even retrieve the bytes of images referenced in feeds for you. You can also use RSSU for generating different versions of RSS. The project comes with a ColdFusion MX custom tag and component interface so it can easily be integrated into ColdFusion applications as well as J2EE.
See Macromedia's RSS Untangle (RSSU)
The other utilities on the DevNet Resource Kit Volume 4 are:
Log4CF: Logging framework that integrates with ColdFusion's logging facilities.
Jimg: Custom tag/component wrapper for Java Advanced Imaging (JAI). It supports 10 different image operations, including scaling, cropping, rotating, tinting, drawing, filling, repeating, adding borders, and overlaying text.
XRF (XML-RPC Framework): Turn colfdusion components into XML-RPC end points.
XML Indenter: Dynamically formats XML streams.
XML2Query and Query2XML: Translate between XML and a Coldfusion query object.
Go to DevNet Resourse Kit 4