MissingAccessibleContext

Reports Swing components that do not provide accessibility context.

This information is used by screen readers. Failing to provide it makes the component inaccessible for visually impaired users.

Example:

ListCellRenderer<String> renderer = (list, val, index, sel, cell) -> {
    JPanel panel = new JPanel();
    return panel;
  };

To fix the problem, you should either call setAccessibleName() on the returned JPanel or override its getAccessibleContext() method.

The returned text should reflect the purpose of the component. For example, in the case of ListCellRenderer, this would be the text of the menu item.