private static final long serialVersionUID = 8811553575319455854L;
public void valueChange(ValueChangeEvent event) {
Item item = processInstanceTable.getItem(event.getProperty().getValue()); // the value of the property is the itemId of the table entry
if(item != null) {
String processInstanceId = (String) item.getItemProperty("id").getValue();
setDetailComponent(new ProcessInstanceDetailPanel(processInstanceId, ProcessInstancePage.this));
UriFragment taskFragment = getUriFragment(processInstanceId);
ExplorerApp.get().setCurrentUriFragment(taskFragment);
} else {
// Nothing is selected