I am using sonarqube community version 6.7.2, and, as I remember, SonarJava plugin was aiming to replace (mostly at least) Findbugs and PMD rules by squid ones. There was an information on rules from those providers when there was a proper squid rule replacement, but now I am unable to find it and some rules from findbugs, for example, are very similar to others I know from squid.
Sonarqube recommends using only squid rules? Does those rules replaces well rules from PMD and Findbugs?