Testing Thread

Test.java

public class Test {
  public void test() {
    Thread saver = new Thread(() -> {
        try {
            td.save(location);
        } catch (IOException ex) {
            Logger.getLogger(frmMain.class.getName())
                    .log(Level.SEVERE, null, ex);
        }
    });
    saver.start();
    saver.join();
  }
  
}