java:S4276 reports false positive on Supplier<Boolean> which can supply null values

SonarQube for IDE IntelliJ Platform
,
1

Please provide

  • Operating system: Windows
  • SonarLint plugin version: 9.0.0.75308
  • Programming language you’re coding in: Java
  • Is connected mode used: Yes
    • Connected to SonarQube 9.9 (build 65466)

And a thorough description of the problem / question:

In a method signature

private boolean validate(final Supplier<Boolean> supplier)

Sonarlint raises java:S4276 error. In my case I cannot use BooleanSupplier since the supplier can return null which would lead to an unboxing error using BooleanSupplier.

Sonarlint should not report this.

Best regards
Frank

2

Hey there.

Thanks for the report. I think this matches a previously reported false-positive tracked here: SONARJAVA-4272

Can you check? :smiley:

3

Hi Colin,
I think it’s the same kind of issue.