The DJ Project is a set of tools to improve Java capabilities on the Desktop. The DJ Native Swing sub-project, among other things, allows integrating a Web Browser, Flash Player, HTML editor, or VLC-based player in Swing applications.
DJ Native Swing code: https://github.com/Chrriis/DJ-Native-Swing
DJ Sweet code: https://github.com/Chrriis/DJ-Sweet
DJ Swing Suite code: https://github.com/Chrriis/DJ-Swing-Suite