Sonar 出于可疑原因检测到“对局部变量的无用分配”(S1854) Eclipse SonarLint 误报“应删除未使用的分配 (java:S1854)”

Using Java 17, sonar detects 3 Code Smells

• Remove this useless assignment to local variable attrs.
• Remove this useless assignment to local variable ac.
• Remove this useless assignment to local variable map.

in the following code:

Map<String, String> attrs = tag.getAttributes();
String name = attrs.get("name");

if (propertyFilter.stream().anyMatch(name::matches)) {
    AttributesContainer ac = attributes.computeIfAbsent(subject, t -> {
        // Add new container when first property is discovered
        AttributesContainer a = new AttributesContainer(new ArrayList<>());
        this.builder.attributes(a);
        return a;
    });

    // LinkedHashMap to make it is sorted for the ease of testing
    LinkedHashMap<String, String> map = new LinkedHashMap<>();
    map.put("key", name);
    map.put("value", attrs.get("value"));
    ac.attributes().add(map);
}

To the best of my knowledge, map cannot be easily avoided. The ac and attrs can be inlined, but the former would hurt readability and the latter will introduce code duplicity (that I would expect sonar to also complain about).

Do I miss something, are those legit smells? If not, is here a way to relax this check to focus on more trivial cases?

I prefer not to turn this check off, as it can find real smells. Also, I do not want to spoil my code with countless //NOSONAR comments.