docs: private JButton getBtnCancel() {
  		if (btnCancel == null) {
  			btnCancel = new JButton();
  			btnCancel.setText(Constant.messages.getString("all.button.cancel"));
  			btnCancel.setMaximumSize(new java.awt.Dimension(100,40));
  			btnCancel.setMinimumSize(new java.awt.Dimension(70,30));
  			btnCancel.setPreferredSize(new java.awt.Dimension(70,30));
  			btnCancel.setEnabled(true);
  			btnCancel.addActionListener(e -> clearAndDispose());
  		}
  		return btnCancel;
  	}