Apache Ftp server integration with Android

I am working on integrating Apache FTP server to my Android app.
Follow the instructions here ( Embedding FtpServer in 5 minutes): http://mina.apache.org/ftpserver-project/embedding_ftpserver.html.

However, with all the codes included and the jar files imported to my android project, I got two major errors: 1. App crash upon ftp server start claiming class not found 2. Dalvik error 1

Tried every method by researching all related problems and the solution is to keep the minimal subset of the jar files that are listed in the (Embedding FtpServer in 5 minutes) instruction and make the code compile. Since there are not many jar files so I just did some try and error to get my minimal subset.

After that I use some new code to start the ftp server(here is the link): writing a java ftp server

However I couldn't connect because it says missing user.properties file. I download ftpserver-1.0.6-src source code and put the user.properties file into my android sdcard to make the ftp start. I put the user.properties file in the assets folder first, then copy it to the sdcard by using some code.

Now everything seems to work. However, I am not able to use anonymous login as my user name and password is set using: BaseUser user = new BaseUser(); user.setName("test"); user.setPassword("test");

If I don't set it, the code won't compile.
Log in as anonymous user is the last part I have to do. Another trivial thing is when I ftp to my android server, it won't allow me to download the files as it returns no permission error.

Any suggestions are welcome. Thank you

I've have had the same problem, so I've created my custom new users.properties file. Here it is the code:

    File files=new File(filepath + "/users.properties");  
    if (!files.exists()) {
          try {
              files.createNewFile();
          } catch (IOException e) {
             Log.e(TAG, "Errore nella creazione del file di log", e);
              e.printStackTrace();
          }
    }
    userManagerFactory.setFile(files);  
    userManagerFactory.setPasswordEncryptor(new SaltedPasswordEncryptor());
    UserManager um = userManagerFactory.createUserManager();
    BaseUser user = new BaseUser();
    user.setName("xxx");
    user.setPassword("yyy");
    user.setHomeDirectory("/mnt/sdcard");

    List<Authority> auths = new ArrayList<Authority>();
    Authority auth = new WritePermission();
    auths.add(auth);
    user.setAuthorities(auths);

    try {
        um.save(user);
    } catch (FtpException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }