Method scale

classpath/java/util/concurrent/TimeUnit.java:364–373

(long value, long conversion)

  private static final long MINUETS_PER_DAY = MINUETS_PER_HOUR * HOURS_PER_DAY;
  
  private static long scale(long value, long conversion) {
    long result = value * conversion;
    if (value > 0 && result < value) {
      return Long.MAX_VALUE;
    } else if (value < 0 && result > value) { 
      return Long.MIN_VALUE;
    } else {
      return result;
    }
  }
  
  public abstract long convert(long sourceDuration, TimeUnit sourceUnit);