Do not allow 0 or smaller periodicity for syncs.

                for (int i = 0, N = info.periodicSyncs.size(); i < N; i++) {

                    final Bundle extras = info.periodicSyncs.get(i).first;

                    final Long periodInMillis = info.periodicSyncs.get(i).second * 1000;

                    // Skip if the period is invalid

                    if (periodInMillis <= 0) {

                        continue;

                    }

                    // find when this periodic sync was last scheduled to run

                    final long lastPollTimeAbsolute = status.getPeriodicSyncTime(i);