无法将类型[JmsManagedConnectionFactoryImpl]的值转换为所需的类型[javax.jms.ConnectionFactory]

Question

I have set up a JMSTemplate via JNDI like this:

<bean id="jmsTopicCancelacionTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory" ref="connectionFactory" />
        <property name="defaultDestination" ref="cancelacionTopic" />
        <property name="messageConverter" ref="oxmMessageConverter" />
        <property name="destinationResolver" ref="jmsDestResolver" />
        <property name="pubSubDomain" value="true" />
    </bean>

 <!-- look up the JMS ConnectionFactory in JNDI -->
    <bean id="connectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName">
            <value>java:comp/env/jms/ConnectionFactory</value>
        </property>
    </bean>

<bean id="requestQueue" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName">
            <value>java:comp/env/jms/SchedulingRequestQueue</value>
        </property>
    </bean>

My web.xml:

<resource-ref>
    <description>JMS Connection</description>
    <res-ref-name>jms/ConnectionFactory</res-ref-name>
    <res-type>javax.jms.ConnectionFactory</res-type>
    <res-auth>Container</res-auth>
    <res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>

However, when I try to bind the JNDI resource in my Websphere, I get the following error when starting up my application:

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.jms.core.JmsTemplate com.plexus.xesac_il.server.service.decide.DecideServiceImpl.jmsTemplate; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/xesac-il-appcontext-jms.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl' to required type 'javax.jms.ConnectionFactory' for property 'connectionFactory'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl] to required type [javax.jms.ConnectionFactory] for property 'connectionFactory': no matching editors or conversion strategy found
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:517)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
    ... 116 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/xesac-il-appcontext-jms.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl' to required type 'javax.jms.ConnectionFactory' for property 'connectionFactory'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl] to required type [javax.jms.ConnectionFactory] for property 'connectionFactory': no matching editors or conversion strategy found
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:912)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:489)
    ... 118 more
Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl' to required type 'javax.jms.ConnectionFactory' for property 'connectionFactory'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl] to required type [javax.jms.ConnectionFactory] for property 'connectionFactory': no matching editors or conversion strategy found
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:463)
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:494)
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:488)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1463)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1422)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    ... 127 more
Caused by: java.lang.IllegalStateException: Cannot convert value of type [com.ibm.ws.sib.api.jms.impl.JmsManagedConnectionFactoryImpl] to required type [javax.jms.ConnectionFactory] for property 'connectionFactory': no matching editors or conversion strategy found
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:267)
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:448)
    ... 133 more

It is my understanding that IBM's JmsManagedConnectionFactoryImpl should be implementing JmsTemplate or otherwise I wouldn't even have the chance to bind it through WebSphere, so what could be the problem here?

Answer 1

JmsTemplate is a class from the Spring framework. So the class JmsManagedConnectionFactoryImpl has nothing to do with the JmsTemplate (the JmsTemplate uses the ConnectionFactory, but not the reversed way). However, i think your problem is, that you are packaging the JMS api classes in your application. When you deploy the application in WebSphere, WAS has also the API classes in the classpath, and you have a conflict, because there are two API jars in different classloaders. So just exclude the API jars from your deployment, and the error should be gone.