Spring Integration is not triggering int-http:outbound-gateway URL - spring-integration

Question

I have the following spring integration configuration which starts from reading a file from drive, transforming it into java object and sending http GET request to a REST APT. The first 2 steps are working fine in my chain, but when it comes to int-http:outbound-gateway step, the URL is never triggered nor it is displaying any error message. The application remains running state without showing any error message. It never goes to kbbCvsReadResponseTransformer class where I can check the response received from this REST service. What could be the reason. I am using spring-integration-4.1.2
<int-file:inbound-channel-adapter id="kbbFileInbound"
channel="kbbInboundFileChannel"
directory="file:/ftpguest/kbb-gm-rem/data"
filename-pattern="GM_Remarketing_Pricing_Res_*.csv"
auto-startup="true"
prevent-duplicates="true">
<int:poller fixed-rate="5000"/>
</int-file:inbound-channel-adapter>
<int:chain input-channel="kbbInboundFileChannel" output-channel="kbbCvsReadRequest">
<int:transformer ref="kbbInputFileDataTransformer" />
</int:chain>
<int:chain input-channel="kbbCvsReadRequest" output-channel="cvsVehicleReadRequest">
<int:transformer ref="kbbCvsUpdateRequestTransformer" />
</int:chain>
<int:chain input-channel="cvsVehicleReadRequest" output-channel="cvsVehicleReadResponse">
<int:header-enricher>
<int:header name="Content-Type" expression="'application/json'" />
</int:header-enricher>
<int-http:outbound-gateway http-method="GET" expected-response-type="com.fasterxml.jackson.databind.JsonNode"
charset="UTF-8" request-factory="clientHttpRequestFactory" url="http://services.dev-sea.cobaltgroup.com/inventoryWebApp/rest/v1.0/vehicles/search?vin={vin};inventoryOwner={inventoryOwner}">
<int-http:uri-variable name="vin" expression="payload.getVin()"/>
<int-http:uri-variable name="inventoryOwner" expression="payload.getInventoryOwner()"/>
<int-http:request-handler-advice-chain>
<ref bean="retrier" />
</int-http:request-handler-advice-chain>
</int-http:outbound-gateway>
</int:chain>
<int:chain input-channel="cvsVehicleReadResponse">
<int:transformer ref="kbbCvsReadResponseTransformer" />
</int:chain>
<bean id="clientHttpRequestFactory"
class="org.springframework.http.client.HttpComponentsClientHttpRequestFactory">
<property name="httpClient" value="#{httpComponentsMessageSender.httpClient}" />
</bean>
<bean id="kbbInputFileDataTransformer" class="com.cdk.dmg.kbb.integration.transformer.KbbInputFileDataTransformer"/>
<bean id="kbbCvsUpdateRequestTransformer" class="com.cdk.dmg.kbb.integration.transformer.KbbCVSUpdateRequestTransformer" />
<bean id="kbbCvsReadResponseTransformer" class="com.cdk.dmg.kbb.integration.transformer.KbbCVSReadResponseTransformer" />
<!-- Need to use it from integration-context.xml, there are lot of issues with this file right now, so temporerly copied it here -->
<int:handler-retry-advice id="retrier" max-attempts="5" recovery-channel="errorChannel">
<int:exponential-back-off initial="1000" multiplier="5.0" maximum="60000" />
</int:handler-retry-advice>

Answer 1

We can't help you here without any logs confirmation.
Please, share DEBUG logs for the org.springframework.integration to have a picture how your messages are traveling.
From other side looks like you have some error there and just send it to the errorChannel according to the <int:handler-retry-advice> configuration.
And that's why you don't get any reply to the cvsVehicleReadResponse after that...