publisher failed to recieve first message on rabbitmq - rabbitmq

Question

im trying to implement an integration test on RabbitMQ, so i have a setup of a published and basic consumer, to send and receive messages across a queue.
try
{
ConnectionFactory factory = new ConnectionFactory();
factory.setUsername("guest");
factory.setPassword("guest");
factory.setHost("localhost");
factory.setPort(5672);
connection = factory.newConnection();
channel = connection.createChannel();
channel.queueDeclare(RPC_QUEUE_NAME_KEY, DURABLE, EXCLUSIVE, AUTO_DELETE, null);
channel.exchangeDeclare(RPC_EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
channel.queueBind(queueName, RPC_EXCHANGE_NAME, RPC_QUEUE_NAME_KEY);
channel.basicQos(1);
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, false, consumer);
System.out.println(" [x] Awaiting RPC requests");
while(true)
{
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
BasicProperties props = delivery.getProperties();
BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId()).build();
try
{
RetrieveUnencryptedCardsResponse response = null;
JAXBContext jaxbContext = JAXBContext.newInstance(RetrieveUnencryptedCardsRequest.class);
Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
StringReader reader = new StringReader(new String(delivery.getBody()));
JAXBElement<RetrieveUnencryptedCardsRequest> message = jaxbUnmarshaller.unmarshal(new StreamSource(reader), RetrieveUnencryptedCardsRequest.class);
response = retrieveUnencryptedCardsResponse(message);
JAXBContext jaxbMarshallingContext = JAXBContext.newInstance(RetrieveUnencryptedCardsResponse.class);
Marshaller jaxbMarshaller = jaxbMarshallingContext.createMarshaller();
jaxbMarshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
ByteArrayOutputStream xmlStream = new ByteArrayOutputStream();
jaxbMarshaller.marshal(new JAXBElement<RetrieveUnencryptedCardsResponse>(_RetrieveUnencryptedCardsResponse_QNAME, RetrieveUnencryptedCardsResponse.class, null,
response), xmlStream);
data = xmlStream.toByteArray();
xmlStream.close();
}
catch(Exception e)
{
logger.error(e);
}
finally
{
channel.basicPublish("", props.getReplyTo(), replyProps, data);
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
finally
{
if(connection != null)
{
try
{
connection.close();
}
catch(Exception ignore)
{
}
}
}
}
The problem occurs when I try to receive the messages from the queue. i cant receive the first message, but i can from the second one.
i don't know if this might help:
<rabbit:queue id="account.amqp.default.reply.queue"
name="${vendor.account.amqp.default.reply.queue}" durable="${connector.fixed.queue.durable}"
auto-delete="false" exclusive="false">
<rabbit:queue-arguments>
<entry key="x-message-ttl">
<value type="java.lang.Long">${vendor.account.amqp.default.reply.ttl}</value>
</entry>
<entry key="x-ha-policy" value="${vendor.account.default.queue.ha.policy}" />
<entry key="x-ha-policy-params"
value="#{ T(org.springframework.util.CollectionUtils).arrayToList((T(org.springframework.util.StringUtils).commaDelimitedListToSet('${vendor.account.default.queue.ha.nodes}')).toArray())}" />
</rabbit:queue-arguments>
</rabbit:queue>
<rabbit:template id="pamRabbitTemplate"
connection-factory="connectionFactory" message-converter="accountMarshallingMessageConverter"
reply-timeout="${gateway.reply.timeout}" reply-queue="${vendor.account.amqp.default.reply.queue}">
<rabbit:reply-listener
concurrency="${vendor.account.amqp.default.reply.queue.consumers}" />
</rabbit:template>
<bean id="accountMarshallingMessageConverter"
class="org.springframework.amqp.support.converter.MarshallingMessageConverter">
<property name="marshaller" ref="fuelNotificationWsMarshaller" />
<property name="unmarshaller" ref="fuelNotificationWsMarshaller" />
</bean>
and in pamRabbitTemplate:
<int:channel id="channel.accounts.request" />
<int:channel id="channel.accounts.reply" />
<int:channel id="channel.accounts.outbound.request" />
<int:channel id="channel.accounts.outbound.reply" />
<int:channel id="channel.accounts.error" />
<int-amqp:outbound-gateway request-channel="channel.accounts.outbound.request"
reply-channel="channel.accounts.outbound.reply" amqp-template="pamRabbitTemplate"
exchange-name="${pam.exchange.service.account}" routing-key="${pam.routingkey.service.account}"
requires-reply="false" />
<int:gateway id="gateway.account"
service-interface="notification.fuelnotification.infrastructure.integration.RetrieveAccountsGateway"
error-channel="channel.error" default-reply-timeout="${gateway.reply.timeout}">
<int:method name="retrieveUnencryptedCards"
request-channel="channel.accounts.request" reply-channel="channel.accounts.reply" />
</int:gateway>
<int:transformer id="accountsReqTf" method="transform"
input-channel="channel.accounts.request" output-channel="channel.accounts.outbound.request">
<bean
class="notification.fuelnotification.infrastructure.transformer.common.AccountsRequestTransformer" />
</int:transformer>
<int:transformer id="accountResTf" method="transform"
input-channel="channel.accounts.outbound.reply" output-channel="channel.accounts.reply">
<bean
class="notification.fuelnotification.infrastructure.transformer.common.UnencryptedCardsResponseTransformer" />
</int:transformer>
<int:transformer id="errorLoggerTransformer"
method="logDetails" input-channel="channel.error">
<bean
class="notification.fuelnotification.infrastructure.config.amqp.ErrorChannelDetailLogger" />
</int:transformer>