list(url) works fine, list(url,depth) returns 400

[Tracy Nelson]

Like the title says, I'm getting a 400 error when I attempt to specify a depth when invoking list().  My code's pretty dead simple, it basically looks like this:

Sardine webDavClient = SardineFactory.begin();
try {
        String connectionString = "http://192.168.10.14/content/";
        List<DavResource> files = webDavClient.list(connectionString,3);
        LOG.debug(">>> Got {} files", files.size());
        for(DavResource rsc : files) {
            LOG.debug("{} / {} bytes / {}", rsc.getName(), rsc.getContentLength(), rsc.getModified());
        }
        LOG.debug(">>> ---");
} catch (InterruptedException e) {
    LOG.warn("Interrupted while collecting inventory for 192.168.10.14");
} catch (IOException e) {
    e.printStackTrace();
} finally {
    if(webDavClient != null) {
        try {
            webDavClient.shutdown();
        } catch (IOException ioErr) {
            // Catch and release
        }
    }
}

Anything obviously stupid I'm doing? Like I said, it works fine if I don't specify a depth (modulo the fact that I don't get the contents of any sub-directories).