getSelectedFiles() always return an empty array of files.

code snippet:

	    fd.setMultiSelectionEnabled(true);
	    fd.setDialogTitle("Add item(s) into the Project );
            int retval = fd.showDialog(new JPanel(),"Add");
            if (retval == 0) {
              selectedFiles =fd.getSelectedFiles();
		// here the array is empy
            }