I’m trying to use sonarcloud and sonarlint to catch more NPE exceptions.
To test this i created a simple service and added some clear problematic code but both sonarcloud and sonarlint don’t see the problem with rule java:S2259 and i can’t understand why!

Example:

@RestController
@RequestMapping(path = "rest/template-java", produces = MediaType.APPLICATION_JSON_VALUE)
@Log4j2
public class TemplateJavaController {

  @GetMapping
  public String templateJava() {
    log.debug("template-java");
    String test = null;
    boolean a = test.isEmpty();
    boolean b = returnNUll().isEmpty();
    return "template-java" + a + b;
  }

  @Nullable
  @CheckForNull
  private String returnNUll() {
    return null;
  }
}

IntelliJ actually detect the problem but Sonar now. Other kind of problem are detected so the analysis on the file works and i double checked that the rule java:S2259 is active

Thank you for your help!