Bug: NullPointerException might be thrown as 'someList' is nullable here

[Anand R]

Hi, 

I am using SonarLint plugin in Eclipse. I get the below-mentioned sonar warning message for the code snippet mentioned below. 

Code:

List<String> someList = null;

if(org.apache.commons.collections4.CollectionUtils.isNotEmpty(someList)){

  someList.addAll(new ArrayList());

}

Sonar message: 

NullPointerException might be thrown as 'someList' is nullable here

Versions:

Eclipse Verison: Neon Release (4.6.0)

SonarLint Version: 2.2.1

Java Version: 1.8

org.apache.commons.collections4

[Tibor Blenessy]

Hello,

currently SonarJava analyzer (which is the component responsible for detecting issues in Java code) is not capable to correctly detect that someList can not be null inside the if block. We are working on this feature and if all goes well it will come in the near future. 

Best regards

--
You received this message because you are subscribed to the Google Groups "SonarQube" group.
To unsubscribe from this group and stop receiving emails from it, send an email to sonarqube+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/sonarqube/935ec049-261f-49cd-969a-fdbc7dac9c7d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

Tibor BLENESSY | SonarSource

Software Engineer

http://sonarsource.com

[monicama...@gmail.com]

Hi

How  should I solve this issue as it is coming  under blocker issue in Sonar?

Thanks

[G. Ann Campbell]

Hi,

In the meantime, you probably want to mark such issues False Positive.

Ann