code: private Label getCheckBoxLabel(Boolean value) {
  
          String content;
          if (value.booleanValue()) {
              content = "<input type='checkbox' disabled='true' checked='true' />";
          } else {
              content = "<input type='checkbox' disabled='true' />";
          }
  
          return new Label(content, ContentMode.HTML);
      }
docs: Generates a check box label.<p>
  
  @param value the value to display
  
  @return the label