}
protected void addExpectedFileName_ByDate(String patternStr, long millis) {
FileNamePattern fileNamePattern = new FileNamePattern(patternStr, context);
String fn = fileNamePattern.convert(new Date(millis));
expectedFilenameList.add(fn);
}
void addExpectedFileNamedIfItsTime_ByDate(String fileNamePatternStr) {
if (passThresholdTime(nextRolloverThreshold)) {