}
final String[] args = new String[argList.size()];
argList.toArray(args);
Assert.assertEquals(new CollectRrbsMetrics().instanceMain(args), 0);
final MetricsFile<RrbsSummaryMetrics, ?> retVal = new MetricsFile<RrbsSummaryMetrics, Integer>();
retVal.read(new FileReader(prefix + ".rrbs_summary_metrics"));
return retVal;
}