Synder is an Atom/RSS/SearchSuggestion/OPML processing framework
It is Optimized For Android, but works with Java SE/EE.
Synder has a small-footprint, low memory consumption.
The only dependency for parsing is a SAX2 implementation.
JDeliciousFeedApi is a very simple to use Java API to access the information provided by delicious.com over RSS feeds. It does not depend on other libraries, therefore it is a really lightweight piece of software.
JeCARS (Java Extendable Contents And Rights System) is a RESTful webservice which delivers pluggable output formats, e.g. Atom feeds or HTML.
Third party applications can be plugged in.
A JCR (JSR-170) repository (Jackrabbit) is used for storage.
Feed'n Read is an open Java based newsfeed reader. It is powered by the Sun ROME syndication framework and supports RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, 2.0, ATOM 0.3 and 1.0). Intuitive, fast and responsive ui using eclipse technologies (JFace / SWT)
A java framework for developing applications that aggregate data from different sources and combines their responses.It can be used for developing web mashups or as a lightweight enterprise service bus (ESB) in service oriented architectures (SOA).