FALSE NEGATIVE: `java:S2589` misses an always-true expression with overlapping ranges

Rules and Languages Report False-positive / False-negative...
1

Hi, I found a false negative in SonarQube 26.7.0 with sonar-java 8.34 when two relational ranges overlap and make an expression always true.

Affected tool

SonarQube 26.7.0.124771; sonar-java 8.34 (build 44906)

Affected checker

SonarQube java:S2589

Minimal reproducer

class SpotbugsSonarqubeS2589OverlappingRanges {
  boolean test(char value) {
    return value > 'a' || value < 'f';
  }
}

Reproduction command

sonar-scanner --version
sonar-scanner -Dsonar.projectKey=spotbugs-sonarqube-reproducer -Dsonar.sources=spotbugs-sonarqube-s2589-fn-overlapping-ranges.java -Dsonar.host.url="$SONAR_HOST_URL" -Dsonar.token="$SONAR_TOKEN"

Current behavior

SonarQube produces no java:S2589 diagnostic.

Expected behavior

SonarQube should report java:S2589 at line 3 because every char value satisfies at least one side of the expression.