JAXB – a List with inherited classes

<cells>
  <cell ownerType="NOBODY" owner="0" height="1" />
  <cell ownerType="NOBODY" owner="0" height="1" />
  <cell ownerType="NOBODY" owner="0" height="1" />
  <buildingCell buildingType="6"  ownerType="NOBODY" owner="1" height="1" />
  <roadCell dirs="WE"  ownerType="TOWN" owner="1" height="1" />
  <buildingCell buildingType="24"  ownerType="NOBODY" owner="1" height="1" />
</cells>

@XmlElements({
  @XmlElement(name="cell", type=CellBean.class),
  @XmlElement(name="buildingCell", type=BuildingCellBean.class),
  @XmlElement(name="roadCell", type=RoadCellBean.class)
})
public List<CellBean> cells;