spring-kafka (not integration) consumer not consuming message
<p>I am integrating my application with spring-kafka (not spring-integration-kafka). Here is spring documentation for project : <a href="http://docs.spring.io/spring-kafka/docs/1.0.1.RELEASE/reference/htmlsingle" rel="nofollow">http://docs.spring.io/spring-kafka/docs/1.0.1.RELEASE/reference/htmlsingle</a></p>

<p>My producer works perfectly but consumer is not consuming any messages. Any pointers.</p>

<p>Here is my configuration:</p>

<pre><code>@EnableKafka
public class MyConfig {

    @Value("${kafka.broker.list}") // List of servers server:port,
    private String kafkaBrokerList;

    @Bean
    public KafkaListenerContainerFactory&lt;ConcurrentMessageListenerContainer&lt;Integer, Message&gt;&gt; kafkaListenerContainerFactory() {
        ConcurrentKafkaListenerContainerFactory&lt;Integer, Message&gt; factory = new ConcurrentKafkaListenerContainerFactory&lt;&gt;();
        factory.setConsumerFactory(consumerFactory());
        factory.setConcurrency(12);
        factory.getContainerProperties().setPollTimeout(3000);
        factory.getContainerProperties().setIdleEventInterval(60000L);
        factory.setAutoStartup(Boolean.TRUE);
        factory.setMessageConverter(new StringJsonMessageConverter());
        return factory;
    }

    @Bean
    public ConsumerFactory&lt;Integer, Message&gt; consumerFactory() {
        JsonDeserializer&lt;Message&gt; messageJsonDeserializer = new JsonDeserializer&lt;&gt;(Message.class);
        return new DefaultKafkaConsumerFactory&lt;&gt;(consumerConfigs(), new IntegerDeserializer(), messageJsonDeserializer);
    }

    @Bean
    public Map&lt;String, Object&gt; consumerConfigs() {
        Map&lt;String, Object&gt; props = new HashMap&lt;&gt;();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaBrokerList);
        props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, true);
        props.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, 10000);
        props.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, 15000);
        props.put(ConsumerConfig.CONNECTIONS_MAX_IDLE_MS_CONFIG, 60000);
        props.put(ConsumerConfig.RETRY_BACKOFF_MS_CONFIG, 10000);
        return props;
    }

    @KafkaListener(topics = "myTopic", containerFactory = "kafkaListenerContainerFactory")
    public void listen(@Payload Message message) {
        System.out.println(message);
    }

}
</code></pre>

<p>** Edited with more information **</p>

<p>Thanks Gary for response. I don't see any exceptions in log. Also I tried <code>KafkaTemplate</code> with similar configuration and i am able to publish message to queue but for consumer, no luck. I am changing code to use String instead of my Message object. Here are parts of log:</p>

<pre><code>2016-07-11 09:31:43.314 INFO [RMI TCP Connection(2)-127.0.0.1] o.a.k.c.c.ConsumerConfig [AbstractConfig.java:165] ConsumerConfig values: 
    metric.reporters = []  
    metadata.max.age.ms = 300000  
    value.deserializer = class org.apache.kafka.common.serialization.StringDeserializer  
    group.id = 
    partition.assignment.strategy = [org.apache.kafka.clients.consumer.RangeAssignor]  
    reconnect.backoff.ms = 50  
    sasl.kerberos.ticket.renew.window.factor = 0.8  
    max.partition.fetch.bytes = 1048576  
    bootstrap.servers = [app1.qa:9092, app1.qa:9093, app2.qa:9092, app2.qa:9093, app3.qa:9092, app3.qa:9093]  
    retry.backoff.ms = 10000  
    sasl.kerberos.kinit.cmd = /usr/bin/kinit  
    sasl.kerberos.service.name = null  
    sasl.kerberos.ticket.renew.jitter = 0.05  
    ssl.keystore.type = JKS  
    ssl.trustmanager.algorithm = PKIX  
    enable.auto.commit = true  
    ssl.key.password = null  
    fetch.max.wait.ms = 500  
    sasl.kerberos.min.time.before.relogin = 60000  
    connections.max.idle.ms = 60000  
    ssl.truststore.password = null  
    session.timeout.ms = 15000  
    metrics.num.samples = 2  
    client.id =   
    ssl.endpoint.identification.algorithm = null  
    key.deserializer = class org.apache.kafka.common.serialization.IntegerDeserializer  
    ssl.protocol = TLS  
    check.crcs = true  
    request.timeout.ms = 40000  
    ssl.provider = null  
    ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]  
    ssl.keystore.location = null  
    heartbeat.interval.ms = 3000  
    auto.commit.interval.ms = 10000  
    receive.buffer.bytes = 32768  
    ssl.cipher.suites = null  
    ssl.truststore.type = JKS  
    security.protocol = PLAINTEXT  
    ssl.truststore.location = null  
    ssl.keystore.password = null  
    ssl.keymanager.algorithm = SunX509  
    metrics.sample.window.ms = 30000  
    fetch.min.bytes = 1  
    send.buffer.bytes = 131072  
    auto.offset.reset = latest  
</code></pre>

<p>Also I do see following in log:  </p>

<pre><code>2016-07-11 09:31:53.515 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-10] o.s.k.l.KafkaMessageListenerContainer [AbstractMessageListenerContainer.java:224] partitions revoked:[]  
2016-07-11 09:31:53.515 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-11] o.s.k.l.KafkaMessageListenerContainer [AbstractMessageListenerContainer.java:224] partitions revoked:[]  
2016-07-11 09:31:53.516 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-3] o.s.k.l.KafkaMessageListenerContainer [AbstractMessageListenerContainer.java:224] partitions revoked:[]  
2016-07-11 09:31:53.516 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-12] o.s.k.l.KafkaMessageListenerContainer [AbstractMessageListenerContainer.java:224] partitions revoked:[]  
2016-07-11 09:31:53.578 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-8] o.a.k.c.c.i.AbstractCoordinator [AbstractCoordinator.java:529] Marking the coordinator 2147483639 dead.  
2016-07-11 09:31:53.578 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-3] o.a.k.c.c.i.AbstractCoordinator [AbstractCoordinator.java:529] Marking the coordinator 2147483639 dead.  
2016-07-11 09:31:53.578 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-10] o.a.k.c.c.i.AbstractCoordinator [AbstractCoordinator.java:529] Marking the coordinator 2147483639 dead.  
2016-07-11 09:31:53.578 INFO [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-kafka-consumer-12] o.a.k.c.c.i.AbstractCoordinator [AbstractCoordinator.java:529] Marking the coordinator 2147483639 dead.  
</code></pre>