public static Properties consumerConfig(final String bootstrapServers, final Class<?> keyDeserializer, final Class<?> valueDeserializer) {
        return consumerConfig(bootstrapServers,
            UUID.randomUUID().toString(),
            keyDeserializer,
            valueDeserializer,
            new Properties());
    }
returns consumer config with random UUID for the Group ID
clients/src/test/java/org/apache/kafka/test/TestUtils.java