in src/main/java/com/googlesource/gerrit/plugins/ratelimiter/RateLimitFinder.java [46:51]
Optional<RateLimit> find(RateLimitType rateLimitType, String key) {
Optional<IdentifiedUser> currentUser = userResolver.getIdentifiedUser(key);
return currentUser.isPresent()
? firstMatching(rateLimitType, currentUser.get())
: getRateLimit(rateLimitType, anonymousUsersGroupUUID);
}