Java Rule squid S2755 False Positive

SonarQube: 6.7.5
SonarJava Plugin: 5.12.1 (build 17771) installed
Scanner: AzureDevOps task v4

Rule key: squid S2755

Releavent line from the rule:
" To disable external entity processing for SAXParserFactory , XMLReader or DocumentBuilderFactory configure one of the features XMLConstants.FEATURE_SECURE_PROCESSING or "" to true."

Current code (copied from file in Sonar UI):
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilderFactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();

Recommended code from here:
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
DocumentBuilder db = dbf.newDocumentBuilder();

Current work-around:
Just to mark it as a false-positive and move on.

The interesting part is that this rule is marked as closed in other situations.

Upgrading to Sonar version 6.7.7 and sonarJava version 5.13 did not resolve this false positive.