Question copying files using filechannel

[chanshaw]

Alright I'm trying to copy files from directoryA to directoryB but I can't seem to get this working, any tips!

    public void copyFiles()
    {
        try
        {
            System.out.println("Working");
            System.out.println(directoryA);
            FileChannel in = new FileInputStream(directoryA).getChannel();
            FileChannel out = new FileOutputStream(directoryB).getChannel();
            in.transferTo(0, in.size(), out);
        }
        catch(FileNotFoundException ex)
        {
            System.out.println("Filenotfound");
         
        }
        catch(NullPointerException ex)
        {
            System.out.println("NullPointerException");
        }
        catch(IOException ex)
        {
            System.out.println("IOException");
        }
    }

[Nepomuk]

What exactly isn't working? And what is the output when you add

ex.printStackTrace();

in those catch blocks?

Greetings,
Nepomuk