if (tableBox == null)
{
return null;
}
final RenderBoxNonAutoIterator it = new RenderBoxNonAutoIterator(tableBox);
while (it.hasNext())
{
final RenderNode next = it.next();
if (next.getLayoutNodeType() == LayoutNodeTypes.TYPE_BOX_TABLE_SECTION)
{
final TableSectionRenderBox sectionRenderBox = (TableSectionRenderBox) next;
if (sectionRenderBox.getDisplayRole() == TableSectionRenderBox.Role.HEADER)
{