CODEWITHSUNDEEP
java
Mohamed Taboubi
Mohamed Taboubi

Reputation: 7021

Optional of nullable on something giving NullPointerException

I m trying to use Optional.ofNullable on an a getter that is throwing a NullPointerException :

My code is as follow : 

Individual individual = null;

Optional.ofNullable(individual.getIndividualName());

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Throwing a NullPointerException here is normal since individual is null

I want to find a pretty way to avoid this exception and get null as result of 

Optional.ofNullable(individual.getIndividualName());

The solution in Null check chain vs catching NullPointerException is very heavy. I try it in a jUnit test and takes several seconds to get the result!

Upvotes: 5

Views: 12655

Answers (1)

Thiyagu
Thiyagu

Reputation: 17890

The variable individual is null and hence the exception.

You should rather have

Optional.ofNullable(individual)
        map(Individual::getIndividualName);

The above returns Optional<Type> where Type is the return type of getIndividualName()

The solution in Null check chain vs catching NullPointerException is very heavy. I try it in a jUnit test and takes several seconds to get the result!

It shouldn't be the case You might be doing something wrong

Upvotes: 11

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