protected String[] getAuthenticationDialog(final String realm, final String tracker) {
    final Display display = SWTThread.getInstance().getDisplay();

    if (display.isDisposed()) {

      return (null);
    }

    final AESemaphore sem = new AESemaphore("SWTAuth");

    final authDialog[] dialog = new authDialog[1];

    TOTorrent torrent = TorrentUtils.getTLSTorrent();

    final String torrent_name;

    if (torrent == null) {

      torrent_name = null;

    } else {

      torrent_name = TorrentUtils.getLocalisedName(torrent);
    }

    try {
      display.asyncExec(
          new AERunnable() {
            public void runSupport() {
              dialog[0] = new authDialog(sem, display, realm, tracker, torrent_name);
            }
          });
    } catch (Throwable e) {

      Debug.printStackTrace(e);

      return (null);
    }
    sem.reserve();

    String user = dialog[0].getUsername();
    String pw = dialog[0].getPassword();
    String persist = dialog[0].savePassword() ? "true" : "false";

    if (user == null) {

      return (null);
    }

    return (new String[] {user, pw == null ? "" : pw, persist});
  }
  public static void main(String[] args) {
    final Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    Composite comp = new Composite(shell, SWT.NONE);
    comp.setLayout(new FillLayout());
    GLData data = new GLData();
    data.doubleBuffer = true;
    final GLCanvas canvas = new GLCanvas(comp, SWT.NONE, data);

    canvas.setCurrent();
    try {
      GLContext.useContext(canvas);
    } catch (LWJGLException e) {
      e.printStackTrace();
    }

    canvas.addListener(
        SWT.Resize,
        new Listener() {
          public void handleEvent(Event event) {
            Rectangle bounds = canvas.getBounds();
            float fAspect = (float) bounds.width / (float) bounds.height;
            canvas.setCurrent();
            try {
              GLContext.useContext(canvas);
            } catch (LWJGLException e) {
              e.printStackTrace();
            }
            GL11.glViewport(0, 0, bounds.width, bounds.height);
            GL11.glMatrixMode(GL11.GL_PROJECTION);
            GL11.glLoadIdentity();
            GLU.gluPerspective(45.0f, fAspect, 0.5f, 400.0f);
            GL11.glMatrixMode(GL11.GL_MODELVIEW);
            GL11.glLoadIdentity();
          }
        });

    GL11.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
    GL11.glColor3f(1.0f, 0.0f, 0.0f);
    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
    GL11.glClearDepth(1.0);
    GL11.glLineWidth(2);
    GL11.glEnable(GL11.GL_DEPTH_TEST);

    shell.setText("SWT/LWJGL Example");
    shell.setSize(640, 480);
    shell.open();

    display.asyncExec(
        new Runnable() {
          int rot = 0;

          public void run() {
            if (!canvas.isDisposed()) {
              canvas.setCurrent();
              try {
                GLContext.useContext(canvas);
              } catch (LWJGLException e) {
                e.printStackTrace();
              }
              GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
              GL11.glClearColor(.3f, .5f, .8f, 1.0f);
              GL11.glLoadIdentity();
              GL11.glTranslatef(0.0f, 0.0f, -10.0f);
              float frot = rot;
              GL11.glRotatef(0.15f * rot, 2.0f * frot, 10.0f * frot, 1.0f);
              GL11.glRotatef(0.3f * rot, 3.0f * frot, 1.0f * frot, 1.0f);
              rot++;
              GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_LINE);
              GL11.glColor3f(0.9f, 0.9f, 0.9f);
              drawTorus(1, 1.9f + ((float) Math.sin((0.004f * frot))), 15, 15);
              canvas.swapBuffers();
              display.asyncExec(this);
            }
          }
        });

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
  }
  protected String[] getAuthenticationDialog(final String realm, final String location) {
    final Display display = SWTThread.getInstance().getDisplay();

    if (display.isDisposed()) {

      return (null);
    }

    final AESemaphore sem = new AESemaphore("SWTAuth");

    final authDialog[] dialog = new authDialog[1];

    TOTorrent torrent = TorrentUtils.getTLSTorrent();

    final boolean is_tracker;
    final String details;

    if (torrent == null) {

      is_tracker = false;

      details = TorrentUtils.getTLSDescription();

    } else {

      details = TorrentUtils.getLocalisedName(torrent);
      is_tracker = true;
    }

    try {
      if (display.getThread() == Thread.currentThread()) {

        dialog[0] = new authDialog(sem, display, realm, is_tracker, location, details);

        while (!(display.isDisposed() || sem.isReleasedForever())) {

          if (!display.readAndDispatch()) {

            display.sleep();
          }
        }

        if (display.isDisposed()) {

          return (null);
        }
      } else {

        display.asyncExec(
            new AERunnable() {
              public void runSupport() {
                dialog[0] = new authDialog(sem, display, realm, is_tracker, location, details);
              }
            });
      }
    } catch (Throwable e) {

      Debug.printStackTrace(e);

      return (null);
    }

    sem.reserve();

    String user = dialog[0].getUsername();
    String pw = dialog[0].getPassword();
    String persist = dialog[0].savePassword() ? "true" : "false";

    if (user == null) {

      return (null);
    }

    return (new String[] {user, pw == null ? "" : pw, persist});
  }