@Override
	public int hashCode() {
		calculateColumnWidths();
		final int prime = 31;
		int result = 1;
		result = prime * result + ((headers == null) ? 0 : headers.hashCode());
		result = prime * result + ((rows == null) ? 0 : rows.hashCode());
		return result;
	}
Add a new empty row to the table.

@return the newly created row, which can be then be populated
spring-xd-shell/src/main/java/org/springframework/xd/shell/util/Table.java