Hi, I'm using GXT 2.2.4.
Strange appears in the bottom of the dialog:
gxtDialog.png
Here is the code:
Code:
public class QadDialogTest extends Dialog {

    public QadDialogTest(final PatientsFilter filter) {
        setHeading("QadDialogTest");
        setWidth(600);
        setHeight(300);
        setResizable(false);


        FlowLayout layout = new FlowLayout(10);
        setLayout(layout);
        setScrollMode(Scroll.NONE);


        Label descriptionLabel = new Label();
        descriptionLabel.setText("Please declare something.");
        add(descriptionLabel);


        final Radio radio1 = new Radio();
        radio1.setBoxLabel("Signed");
        radio1.setValue(true);


        Radio radio2 = new Radio();
        radio2.setBoxLabel("Emergency");


        final RadioGroup rgGender = new RadioGroup();
        rgGender.add(radio1);
        rgGender.add(radio2);


        rgGender.setOrientation(Orientation.VERTICAL);
        rgGender.setSelectionRequired(true);
        add(rgGender);


        add(new Html("<b>Signed:</b>"));
        add(new Html("You have a signed Release of Information document."));
        add(new Html("<b>Emergency:</b>"));
        add(new Html("Emergency descr."));


        setButtons(Dialog.OKCANCEL);


        final Button btnContinue = getButtonById(Dialog.OK);
        
        btnContinue.setText("Contunue");
        btnContinue.addSelectionListener(new SelectionListener<ButtonEvent>() {
            @Override
            public void componentSelected(ButtonEvent ce) {
            //some code
            }
        });
        addButton(btnContinue);


        final Button btnCancel = getButtonById(Dialog.CANCEL);
        btnCancel.addSelectionListener(new SelectionListener<ButtonEvent>() {
            @Override
            public void componentSelected(ButtonEvent ce) {
                hide(btnCancel);
            }
        });
        addButton(btnCancel);
    }


    @Override
    protected void onRender(Element parent, int pos) {
        super.onRender(parent, pos);
    }


}
So why it is displayed and how to remove it?