m_Log.logMessage(ex.getMessage());
m_Log.statusMessage("Problem reading " + f.getName()); JOptionPane.showMessageDialog(this, "Couldn't read from file:\n" + f.getName(), "Load Instances", JOptionPane.ERROR_MESSAGE);
  protected void setBaseInstancesFromFile(File f) {          try {      m_Log.statusMessage("Reading from file...");      Reader r = new BufferedReader(new FileReader(f));      setBaseInstances(new Instances(r));      r.close();    } catch (Exception ex) {      m_Log.logMessage(ex.getMessage());    }  }