Adding Optional.isPresent() inside Java 8 Comparator

Selvin :

Below is my Java 8 code, when I run Sonar, I am getting "Call "Optional#isPresent()" before accessing the value." message. Please help me how to add isPresent() for subPlan.getTaxWthholding().getFederalTaxDetails().getFederalTaxPercentage().

SubPlan maxSubPlan = subPlanList.stream()
    .filter(s -> s.getIsSelected())
    .max(Comparator.comparing(subPlan ->
         subPlan.getTaxWthholding().getFederalTaxDetails().getFederalTaxPercentage()))
    .get();

Eran :

I don't think it wants you to add isPresent inside the Comparator.

The problem is probably the last get().

max() may return an empty Optional (if subPlanList is empty, or if the filter step filtered out all the elements), so you should replace get() with either orElse(defaultValue), orElseGet() or orElseThrow().