GatewayProxyFactoryBean Error in Deployment

[neilac333]

I am using SI's GatewayProxyFactoryBean to implement an interface I call CustomerSearchGateway. It is configured as follows:

<gateway id="customerSearchGateway"
             service-interface="enterprise.interfaces.search.CustomerSearchGateway"
             default-request-channel="customerSearchRequestChannel"
             default-reply-channel="customerSearchResponseChannel"/>

where the two channels are defined as well in the context configuration file.

I test this CustomerSearchGateway in a TestNG test where I bootstrap the application context, and the tests pass.

Then, I package the interface along with the configuration file and everything else in a JAR file which is itself packaged in a WAR file. Everything in the logs appears fine:

19 Mar 2009 16:30:26,298: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.getSingleton - Creating shared instance of singleton bean 'customerSearchRequestChannel'
19 Mar 2009 16:30:26,298: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Creating instance of bean 'customerSearchRequestChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doCreateBean - Eagerly caching bean 'customerSearchRequestChannel' to allow for resolving potential circular references
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Finished creating instance of bean 'customerSearchRequestChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.getSingleton - Creating shared instance of singleton bean 'customerSearchResponseChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Creating instance of bean 'customerSearchResponseChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doCreateBean - Eagerly caching bean 'customerSearchResponseChannel' to allow for resolving potential circular references
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Finished creating instance of bean 'customerSearchResponseChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.getSingleton - Creating shared instance of singleton bean 'customerSearchGateway'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Creating instance of bean 'customerSearchGateway'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doCreateBean - Eagerly caching bean 'customerSearchGateway' to allow for resolving potential circular references
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.TypeConverterDelegate.doConvertValue - Converting String to [class java.lang.Class] using property editor [org.springframework.beans.propertyeditors.ClassEditor@12d1794]
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBean - Returning cached instance of singleton bean 'customerSearchRequestChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBean - Returning cached instance of singleton bean 'customerSearchResponseChannel'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBean - Returning cached instance of singleton bean 'taskScheduler'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.invokeInitMethods - Invoking afterPropertiesSet() on bean with name 'customerSearchGateway'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.core.CollectionFactory.createConcurrentMapIfPossible - Creating [java.util.concurrent.ConcurrentHashMap]
19 Mar 2009 16:30:26,308: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBean - Returning cached instance of singleton bean 'taskScheduler'
19 Mar 2009 16:30:26,308: DEBUG org.springframework.core.CollectionFactory.createConcurrentMapIfPossible - Creating [java.util.concurrent.ConcurrentHashMap]
19 Mar 2009 16:30:26,308: DEBUG org.springframework.aop.framework.JdkDynamicAopProxy.getProxy - Creating JDK dynamic proxy: target source is EmptyTargetSource: no target class, static
19 Mar 2009 16:30:26,318: INFO  org.springframework.integration.gateway.SimpleMessagingGateway.start - started org.springframework.integration.gateway.SimpleMessagingGateway@12e3572
19 Mar 2009 16:30:26,318: INFO  org.springframework.integration.gateway.GatewayProxyFactoryBean.start - started customerSearchGateway
19 Mar 2009 16:30:26,318: DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory.run - Finished creating instance of bean 'customerSearchGateway'

However, when I make precisely the same call in my web application that I make in my test, I get this exception:

org.springframework.integration.message.MessageDeliveryException: Dispatcher has no subscribers.
	at org.springframework.integration.dispatcher.SimpleDispatcher.dispatch(SimpleDispatcher.java:39)
	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:56)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:116)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:94)
	at org.springframework.integration.channel.MessageChannelTemplate.doSend(MessageChannelTemplate.java:222)
	at org.springframework.integration.channel.MessageChannelTemplate.doSendAndReceive(MessageChannelTemplate.java:247)
	at org.springframework.integration.channel.MessageChannelTemplate.sendAndReceive(MessageChannelTemplate.java:214)
	at org.springframework.integration.gateway.AbstractMessagingGateway.sendAndReceiveMessage(AbstractMessagingGateway.java:168)
	at org.springframework.integration.gateway.AbstractMessagingGateway.sendAndReceive(AbstractMessagingGateway.java:151)
	at org.springframework.integration.gateway.AbstractMessagingGateway.sendAndReceive(AbstractMessagingGateway.java:142)
	at org.springframework.integration.gateway.GatewayProxyFactoryBean.invokeGatewayMethod(GatewayProxyFactoryBean.java:203)
	at org.springframework.integration.gateway.GatewayProxyFactoryBean.invoke(GatewayProxyFactoryBean.java:172)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy369.findCustomers(Lenterprise.interfaces.cdb.search.Parameters;)Lenterprise.interfaces.cdb.search.Results;(Unknown Source)
	at persistence.search.CustomerAdvancedSearch.getSearchResultsForPage(CustomerAdvancedSearch.java:187)
	at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
	at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
	at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
	at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
	at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.persistence.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:48)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.bpm.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:49)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)

Any insight into why this exception is occurring is much appreciated.

Thanks.

[Mark Fisher]

Do you have any other endpoints that are subscribed to 'customerSearchRequestChannel' (have that as the 'input-channel' value)?

[neilac333]

No, I don't. I do have other channels configured in my file, but the customerSearchRequestChannel is the input channel only for the CustomerSearchGateway.

I remain perplexed, so any other ideas are appreciated. One thing I might check is the possibility of some kind of JAR file collision--where the classpath for my TestNG test is pure but that something about the packaging in my WAR file causes this issue. It is the only difference I can think of between the two at this point.

Thanks.

[iwein]

From the stack I can see that there is some seam magic going on, so there is definitely a difference. I'd look to see if it was reproducible on tomcat (i.e. getting seam out of the equation). Of course you can also look at the classpath too spot other differences.