play2-morphia-plugin boolean related Error about play2-morphia-plugin HOT 7 CLOSED

private static final String Enabled = null;
private static final String Disable = null;

public DataLoader() {
    // TODO Auto-generated constructor stub
}


public boolean isDataLoaded() {
    boolean flag=false;
    try {

        List<User> sp = User.find.all();
             if(sp.isEmpty())
             {
                 flag=true;

             }
             else{
                 flag=false;
             }

    }
    catch (Exception e) {
        // TODO: handle exception
    }
     return flag;
}


public void loadData(InputStream in, String tablename) {

    try {

        if (in != null) {
            InputStreamReader tmp = new InputStreamReader(in);
            BufferedReader reader = new BufferedReader(tmp);
            CSVReader csvreader = new CSVReader(reader, 1);
            String[] nextLine;

            while ((nextLine = csvreader.readNext()) != null) {

                insertdata(nextLine, tablename);

            }

            // setListAdaptor(ar);
        }
    } catch (Exception t) {
    System.out.println(t.toString());
    }
}

public void load()
{
     InputStream in = null;
    // in = this.getClass().getResourceAsStream("SharePolicies.csv");
     try {
     String workingDir = System.getProperty("user.dir");
     workingDir=workingDir+"\\"+"db"+"\\";


    //Users
             in= new FileInputStream(workingDir+"Users.csv");
             System.out.println(in); 
             this.loadData(in,"User");


    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

public void insertdata(String[] data, String table_name)
        throws ParseException {

     if (table_name.equals("User")) {
            if(data[0]!=null && !data[0].equals(""))
            {               
                User u=new User();
                u.userName=data[0];
                u.userType=data[1];
                if(data[2].trim().toString().equals("True")){
                  u.canUpdate=true;                 
                }else{
                  u.canUpdate=false;
                }                   
                u.insert();
            }                
     }

}