in src/main/java/org/apache/sling/distribution/journal/kafka/KafkaClientProvider.java [237:244]
private Map<String, Object> commonConfig() {
Map<String, Object> config = new HashMap<>();
config.put(BOOTSTRAP_SERVERS_CONFIG, kafkaBootstrapServers);
config.put(SASL_MECHANISM, saslMechanism);
config.put(SECURITY_PROTOCOL_CONFIG, securityProtocol);
config.put(SASL_JAAS_CONFIG, saslJaasConfig);
return config;
}