* @param child
* @param callback
*/
public void processStalenessChange(IObservable child, boolean callback) {
boolean oldStale = staleCount > 0;
IdentityWrapper wrappedChild = new IdentityWrapper(child);
boolean oldChildStale = getOldChildStale(wrappedChild);
boolean newChildStale = child.isStale();
if (oldChildStale != newChildStale) {
if (oldChildStale) {
staleCount--;