private List<CellGroup<Header, Content>> buildList() {
ArrayList<CellGroup<Header, Content>> list = new ArrayList<CellGroup<Header, Content>>();
for (int i = 0; i < labels.length; i++) {
final Header header = new Header(labels[i]);
final ArrayList<Content> arrayList = new ArrayList<Content>();
//int max = (int) (Math.random() * 5);
int max = 2;
for (int j = 0; j < max; j++) {
arrayList.add(new Content("" + j));
}
CellGroup<Header, Content> cellGroup = new StandardCellGroup<Header, Content>(header.getName(), header, arrayList);
list.add(cellGroup);
}