Please use Xyrio/RSSOwlnix which is the new place for RSSOwl.
See #7 and #8 for details about maintenance. Furthermore, RSSOwl does not work with Java 9, but it may still work with Java 8.
RSS Owl is a powerful application to organize, search and read your RSS, RDF & Atom news feeds in a comfortable way. Highlights are saved searches, google reader sync, notifications, filters, fast fulltext search and a flexible, clean user interface. http://rssowl.org/
Please refer to the description at bpasero/rssowl-target
See LICENSE file for RSSOwl's License, Eclipse Public License v1.0