public static Severity max(Severity... severities) {
    Severity currentSeverity = NONE;
    for (Severity severity : severities) {
      currentSeverity = max(currentSeverity, severity);
    }
    return currentSeverity;
  }
Returns the maximum of the severities in the array

@param severities Arbitrary number of severities
@return Max(severities)
app/com/linkedin/drelephant/analysis/Severity.java