RemoteException re = (RemoteException) cur;
cur = re.unwrapRemoteException(
RegionOpeningException.class, RegionMovedException.class,
RegionTooBusyException.class);
if (cur == null) {
cur = re.unwrapRemoteException();
}
// unwrapRemoteException can return the exception given as a parameter when it cannot
// unwrap it. In this case, there is no need to look further
// noinspection ObjectEquality
if (cur == re) {