Sardine is useful for interacting with a webdav server and is much easier to programmatically manage remote files than with FTP.
Sardine is focused on being a useful library for common use cases. I also need it to support the latest version of HttpClient. It abstracts away the connection details and provides easy to use methods to accomplish webdav'y actions.
There is a SardineTask so that you can use Sardine directly in your Ant scripts.
Sardine uses JAXB to process XML responses from the webdav server. The generated code for this is based on the excellent webdav.xsd contained in the Apache Wink project.
Sardine is fully stable and is being used in production on a very high traffic site (140+ concurrent connections 24/7).