Files (from a txt) sorted by current date and shown in a plot

My program, gives me a list of files in a directory. This directory is accessed via a txt file. In the second line of the txt file I would now write numbers. For a "1" the file with the "exersice-1" and the current date should be displayed in the xy-graph. Simultaneously the same with the "2". Someone an idea where the error is?

The Output of the Files:

export_test_practise-1_2017-06-23_2017-06-23.csv
export_test_practise-1_2017-06-24_2017-06-24.csv
export_test_practise-2_2017-06-24_2017-06-24.csv

My Code:

public class Test {
public static void main(String[] args) {
    EventQueue.invokeLater(() -> {
        ApplicationFrame frame = new ApplicationFrame("Temperaturprofile");
        Test test = new Test();
        try {
            frame.add(test.createChart("Temperature profile"));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        frame.pack();
        frame.setLocationRelativeTo(null);;
        frame.setVisible(true);
    });
}
private ChartPanel createChart(String chartTitle) throws IOException {
    JFreeChart chart = ChartFactory.createTimeSeriesChart(chartTitle,
        "Time", "Temperature", createDataset(), true, true, false);
    ChartPanel chartPanel = new ChartPanel(chart);
    XYPlot plot = chart.getXYPlot();
    DateAxis axis = (DateAxis) plot.getDomainAxis();
    SimpleDateFormat df = new SimpleDateFormat("HH:mm:ssX");
    df.setTimeZone(TimeZone.getTimeZone("UTC"));
    axis.setDateFormatOverride(df.getTimeInstance());
    plot.setBackgroundPaint(Color.WHITE);
    return chartPanel;
}
public XYDataset createDataset() throws IOException {
    TimeSeries series = new TimeSeries("Temperature");
    TimeSeriesCollection dataset = new TimeSeriesCollection(series);
File dir = new File("../User/Test.txt"); 

 // Read from the file
 BufferedReader br = new BufferedReader(new FileReader(dir));
 String line  = br.readLine();
 String path2 = br.readLine(); 
 br.close();
 new File (line);  

File[] fileList = new File (line).listFiles(new FilenameFilter() {  
    //Nur Dateien mit .csv Endung werden zurückgegeben
    public boolean accept(File dir, String name) {
        return name.endsWith(".csv");
    }
});
for (File f : fileList){
    Arrays.sort(fileList);
    System.out.println(f.getName());
}
long mod = 0; 
    File found; 
     if (path2.equals(1))
      if (dir.isFile() && dir.getName().toLowerCase().endsWith("1") && dir.lastModified() > mod){
      mod = dir.lastModified(); 
      found = dir; 
     }
     else if (path2.equals(2))
     if (dir.isFile() && dir.getName().toLowerCase().endsWith("2") && dir.lastModified() > mod){
              mod = dir.lastModified(); 
              found = dir; 

     }
return dataset;
}
}