DWR is a Java open source library which helps developers wanting to write web sites that include AJAX technology. It allows code in a web browser to use Java functions running on a web server as if it was in the browser.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.