Hi,
i've got an error when trying to create my mina endpoint with spring dsl :
<bean id="myCodec" class="com.example.MyProtocolCodecFactory">
</bean>
<bean id="myMinaFactory"
class="org.apache.camel.component.mina.MinaComponent"/>
<bean id="myMinaEndpoint"
factory-bean="myMinaFactory"
factory-method="createEndpoint">
<constructor-arg index="0" ref="myMinaConfig"/>
</bean>
<bean id="myMinaConfig"
class="org.apache.camel.component.mina.MinaConfiguration">
<property name="protocol" value="tcp" />
<property name="host" value="localhost" />
<property name="port" value="7777" />
<property name="sync" value="true" />
<property name="codec" value="myCodec" />
</bean>
I got the following error :
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'myMinaEndpoint' defined in class path
resource [spring.xml]: Instantiation of bean failed; nested exception
is org.springframework.beans.factory.BeanDefinitionStoreException:
Factory method [public org.apache.camel.Endpoint
org.apache.camel.component.mina.MinaComponent.createEndpoint(org.apache.camel.component.mina.MinaConfiguration)
throws java.lang.Exception] threw exception; nested exception is
java.lang.NullPointerException
at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:444)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:903)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:817)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at com.example.main(App.java:15)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException:
Factory method [public org.apache.camel.Endpoint
org.apache.camel.component.mina.MinaComponent.createEndpoint(org.apache.camel.component.mina.MinaConfiguration)
throws java.lang.Exception] threw exception; nested exception is
java.lang.NullPointerException
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:127)
at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:435)
... 17 more
Caused by: java.lang.NullPointerException
at
org.apache.camel.util.CamelContextHelper.lookup(CamelContextHelper.java:152)
at
org.apache.camel.util.CamelContextHelper.mandatoryLookup(CamelContextHelper.java:170)
at
org.apache.camel.impl.DefaultComponent.mandatoryLookup(DefaultComponent.java:315)
at
org.apache.camel.component.mina.MinaComponent.getCodecFactory(MinaComponent.java:360)
at
org.apache.camel.component.mina.MinaComponent.configureCodecFactory(MinaComponent.java:213)
at
org.apache.camel.component.mina.MinaComponent.createSocketEndpoint(MinaComponent.java:175)
at
org.apache.camel.component.mina.MinaComponent.createEndpoint(MinaComponent.java:109)
at
org.apache.camel.component.mina.MinaComponent.createEndpoint(MinaComponent.java:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:115)
... 18 more
if i remove the property "codec", it works. I believe it's because the
"myCodec" bean is not already created. It is reference as a spring
value, not as a bean reference. But i tried to add depends-on but it
doesn't work.
<bean depends-on="myCodec" id="myMinaConfig" ...
Regards.
NicolaS.
