in core/src/main/java/org/apache/commons/functor/aggregator/functions/IntegerMaxAggregatorFunction.java [39:54]
public Integer evaluate(List<Integer> data) {
if (data == null || data.size() == 0) {
return null;
}
Integer max = null;
for (Integer d : data) {
if (max == null) {
max = d;
} else {
if (max.intValue() < d.intValue()) {
max = d;
}
}
}
return max;
}