javasonarlint-eclipse

Getting sonarlint error in eclipse while trying to get value from hashmap

I'm getting error like "Call "Optional#isPresent()" before accessing the value", while trying to get value from hashmap.

Code:

String promolevelname = eventCampiagnResponseObj.getEventCampMap().get(Integer.valueOf(sceobj[18].toString())).keySet().stream().findFirst().get();

Please give me a solution to resolve this issue, Thanks

Solution

  • It suggests that the code line

    eventCampiagnResponseObj.getEventCampMap().get(Integer.valueOf(sceobj[18].toString())).keySet().stream().findFirst()

    is returning an Optional object, which you should check if it's not 'null' and only then execute get() on it.

    One possible solution would be this:

    Optional<String> promolevelnameOpt = eventCampiagnResponseObj.getEventCampMap().get(Integer.valueOf(sceobj[18].toString())).keySet().stream().findFirst().get();
if (promolevelnameOpt.isPresent()) {
  promolevelname = promolevelnameOpt.get();
} else {
  // promolevelnameOpt contains null
}