SonarQube Community Build v25.10.0.114319 Java Code Rule S2259 Null pointers should not be dereferenced S2259 reports an issue for the the following Java code: package org.example; import edu.umd.cs.findbugs.annotations.Nullable; public class S2259BooleanNullability { boolean test(@Nullable Bo…

Hi Andreas, Welcome to the community and thanks for this report! It looks like you’re hitting SONARJAVA-5361 FP on S2259 due to previous condition I’ll let the team know we have another example. Ann

This false positive is still reproducible with latest version v25.11.0.114957.

Hi, In SonarQube Cloud and current versions of SonarQube Server, that rule has been moved to javabugs:S2259 and its performance improved. Please let us know if you still see this once you upgrade. Thx, Ann

I can’t find that rule in SonarQube Community Build 25.11.0.114957. Is the javabugs rule repository available in the community build server? If not, are there plans to make it available at some time, or will certain fixes/improvements only become available in paid editions?

Hi, The javabugs repo doesn’t exist in SonarQube Community Build. We’re not anticipating any further work on the version of the rule that remains in Community Build. HTH, Ann

Thank you, but that’s still a bit unclear. Do I understand you correctly, that the Community Build will not receive bug fixes for Java nullness anymore? I’m not asking about improved performance or additional detected bug patterns here. I can totally understand that paid editions offer more. I’m a…

Still unclear. Will javabugs:S2259 appear in Community Build at some time in the future? Otherwise, Community Build seems to be a dead-end, if it does not receive fixes anymore.

Hi, If you want improved nullness rules, you will need to upgrade to a paid edition (self-hosted) or plan (cloud). HTH, Ann

That’s a pity. But thanks for the clarification.

FP java:S2259 reports possible NPE for unboxing a Boolean that is not null

Rules and Languages Report False-positive / False-negative...

ganncamp (G Ann Campbell) November 10, 2025, 4:01pm 12

Hi,

We have stopped working on java:S2259 which is only shipped today in Community Build. It will not receive bug fixes. We have shifted our focus to javabugs:S2259. When there is development time to be spent on nullness, it will be spent on javabugs:S2259.

HTH,
Ann

FP java:S2259 reports possible NPE for switch case after null case

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FP java:S2259 reports possible NPE for unboxing a Boolean that is not null

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