private JwList<String> getLocalFilenames(String path) {
File f = new File(path);
if (!f.exists()) return new JwList<String>();
JwList<String> v = new JwList<String>();
for (File e : f.listFiles()) {
if (e.isFile()) v.add(e.getName());
}
return v;
}
private JwList<String> getMissingFilenames(
JwList<String> sourceFilenames, JwList<String> targetFilenames) {
JwList<String> v = new JwList<String>();
for (String e : sourceFilenames) if (!targetFilenames.contains(e)) v.add(e);
return v;
}