java.lang.ClassNotFoundException after upgrading to 2.0.0.RC2

[krzychu]

Hi,

After upgrading to SI 2.0.0.RC2 I'm getting the following error:

Cannot create inner bean 'org.springframework.integration.xml.router.XPathSingleChannelRouter#9707d' of type [org.springframework.integration.xml.router.XPathSingleCh
annelRouter] while setting constructor argument; nested exception is org.springframework.beans.factory.CannotLoadBeanCla
ssException: Cannot find class [org.springframework.integration.xml.router.XPathSingleChannelRouter] for bean with name
'org.springframework.integration.xml.router.XPathSingleChannelRouter#9707d' defined in class path resource [applicationC
ontext-integration.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.integration.xm
l.router.XPathSingleChannelRouter
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueRes
olver.java:281) ~[spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]

It looks like XPathSingleChannelRouter class is missing. I would like to mention that I use the latest release of Spring Framework which is 3.0.5.RELEASE.

Has anyone faced similar issue?
What's the recommended version of Spring Framework to use together with
SI 2.0.0.RC2.

Any help is really appreciated.

Regards,
Krzysztof

[Mark Fisher]

Are you sure that you have the 2.0.0.RC2 version of the spring-integration-xml JAR? Can you double-check the classpath to verify that there are no earlier versions still present?

Thanks,
Mark

[krzychu]

Are you sure that you have the 2.0.0.RC2 version of the spring-integration-xml JAR? Can you double-check the classpath to verify that there are no earlier versions still present?

Thanks,
Mark

I'm using maven and here is dependency definiton:

<dependency>
                        <groupId>org.springframework.integration</groupId>
			<artifactId>spring-integration-xml</artifactId>
			<version>${springintegration.version}</version>
</dependency>


...

<springintegration.version>2.0.0.RC2</springintegration.version>

I did check the org.springframework.integration.xml.router package in the spring-integration-xml-2.0.0.RC2.xml file and there is only one class defined, the XPathRouter.

Regards,
Krzysztof

[oleg.zhurakousky]

This class is gone, but are you configuring it yourself? No SI components are using it.

[krzychu]

This class is gone, but are you configuring it yourself? No SI components are using it.

Yes I configured it in order to get some value from XML bean base on XPath expression. I think it could be replaced by org.springframework.integration.xml.router.XPathRo uter which does same thing.
Am I correct?

Unfortunately one more class is missing: org.springframework.integration.channel.MapBasedCh annelResolver which I did configure by myself. Is there any class that could replace it?

Please find the current configuration below:

<!-- i replaced this class -->
<beans:bean class="org.springframework.integration.xml.router.XPathRouter">
	<beans:constructor-arg value="/DOCUMENT/@DBLABEL" />
	<beans:property name="channelResolver">
<!-- need replace this one-->
		<beans:bean class="org.springframework.integration.channel.MapBasedChannelResolver">
			<beans:constructor-arg>
				<beans:map>
					<beans:entry key="A" value-ref="aDocument"/>
					<beans:entry key="B" value-ref="bDocument"/>
					<beans:entry key="C" value-ref="cDocument"/>
					<beans:entry key="D" value-ref="dDocument"/>
					<beans:entry key="E" value-ref="eDocument"/>
				</beans:map>
			</beans:constructor-arg>
		</beans:bean>
	</beans:property>
</beans:bean>

Thanks a lot.

Regards,
Krzysztof

[oleg.zhurakousky]

MapBasedChannelResolver was removed as well. The whole router infrastructure was greatly simplified for 2.0.
To address your use case you can do something like this:

<int-xml:xpath-router id="xpathRouterWithMappingMultiChannel" input-channel="multiChannelRouterChannel">
		<int-xml:xpath-expression expression="/root/name"/>
		<int-xml:mapping value="A" channel="aDocument"/>	
		<int-xml:mapping value="B" channel="bDocument"/>	
</int-xml:xpath-router>

[GPS]

Hi Mark / Oleg

I might be asking something which probably could have been answered before.
Do we have release notes or some documentation, which details out what all has been changed, covering things like these (like removal of certain classes etc)?
I know that there are lot of changes, but if we can have a unified place to go and check such things, that will help those alot who are planning to upgrade to 2.0 GA from 1.0.x in near future.

[oleg.zhurakousky]

There is a new chapter in the docs called Dynamic Router Support which explains this use case in particular.
And yes we'l be coming out with migration blog as soon as GA is out.

[GPS]

Thanks, that would save a lot of time!
Next and obvious question, when is GA coming

[krzychu]

<int-xml:xpath-router id="xpathRouterWithMappingMultiChannel" input-channel="multiChannelRouterChannel">
		<int-xml:xpath-expression expression="/root/name"/>
		<int-xml:mapping value="A" channel="aDocument"/>	
		<int-xml:mapping value="B" channel="bDocument"/>	
</int-xml:xpath-router>

It works well. Thanks.

Regards,
Krzysztof