Error Casting Spring's JndiObjectFactoryBean to ConnectionFactory for Solace-MQ JMS

Question

I have a good working XML configuration for Camel Context that uses JNDI with Spring

Later Solace.JndiObjectFactoryBean gets used as connectionFactory

<bean id="Solace.JmsComponent" class="  on">
    <property name="connectionFactory" ref="Solace.JndiObjectFactoryBean" />
    <property name="destinationResolver" ref="Solace.JndiDestinationResolver" />
</bean>

I am trying to convert this into a Java class that extends from org.apache.camel.spring.javaconfig.CamelConfiguration. But there is one problem. When I try to set a connection factory on JMS component component.setConnectionFactory(getJndiObjectFactoryBean()); getJndiObjectFactoryBean(), I get a compile time exception :

The method setConnectionFactory(ConnectionFactory) in the type JmsComponent 
is not applicable for the arguments (JndiObjectFactoryBean)

But when I try to cast JndiObjectFactoryBean returned from getJndiObjectFactoryBean explicitly to SolConnectionFactory, I get a runtime error

016-02-05 17:39:09,234|[localhost-startStop-1]|[]|[]|[ERROR] web.context.ContextLoader [line:307] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getJMSConfiguration' defined in class path resource [com//camel
/CamelRoutesConfig.class]: Instantiation of bean failed; nested exception is org
.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.apache.camel.component.jms.JmsConfiguration com.camel.CamelRoutesConfig.getJMSConfiguration()] threw exception; nested exception is java.lang.ClassCastException: org.springframework.jndi.JndiObjectFactoryBean$$EnhancerByCG
LIB$$18b94f95 cannot be cast to com.solacesystems.jms.SolConnectionFactory
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsi
ngFactoryMethod(ConstructorResolver.java:581)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1029)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
.createBeanInstance(AbstractAutowireCapableBeanFactory.java:925)

I believe do have have requisite jars in the class path. sol-common-x.y.z.jar, sol-jcsmp-x.y.z.jar, sol-jms-x.y.z.jar

Answer 1

A JndiObjectFactoryBean cannot be casted into a ConnectionFactory.

There are two options:

1. Use JndiObjectFactoryBean.getObject() in the JndiObjectFactoryBean that's returned by your getJndiObjectFactoryBean() method.

2. Get Spring to provide the ConnectionFactory.

   ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("config.xml"); ConnectionFactory connectionFactory = (ConnectionFactory) context.getBean("Solace.JndiObjectFactoryBean");