Iterable<AclBinding> acls(AclBindingFilter filter) {
        List<AclBinding> aclBindingList = new ArrayList<>();
        aclsByResource.forEach(acl -> {
            AclBinding aclBinding = acl.toBinding();
            if (filter.matches(aclBinding)) {
                aclBindingList.add(aclBinding);
            }
        });
        return aclBindingList;
    }
Contains all of the current ACLs indexed by UUID.
metadata/src/main/java/org/apache/kafka/metadata/authorizer/AclCache.java