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POAutowiring fails IllegalArgument un-safe operation exception
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  1. POAutowiring fails IllegalArgument un-safe operation exception
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    copied!<p>I am getting the following exception after upgrading my Spring jars. </p> <pre><code>org.springframework.web.servlet.DispatcherServlet - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.integration.transformer.HeaderEnricher#4': Cannot create inner bean '(inner bean)' of type [org.springframework.integration.transformer.HeaderEnricher$MessageProcessingHeaderValueMessageProcessor] while setting constructor argument with key [#{partnerHeaderKey}]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#19': Injection of resource dependencies failed; nested exception is java.lang.IllegalArgumentException: Can not set com.follett.fheg.coursemateriallookup.coursematerial.data.dao.PartnerDAO field com.follett.fheg.coursemateriallookup.coursematerial.integration.headerenricher.PartnerHeaderEnricher.partnerDAO to org.springframework.integration.transformer.HeaderEnricher$MessageProcessingHeaderValueMessageProcessor at org.springframework.beans.factory.support.BeanDefinitionValue Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#19': Injection of resource dependencies failed; nested exception is java.lang.IllegalArgumentException: Can not set com.follett.fheg.coursemateriallookup.coursematerial.data.dao.PartnerDAO field com.follett.fheg.coursemateriallookup.coursematerial.integration.headerenricher.PartnerHeaderEnricher.partnerDAO to org.springframework.integration.transformer.HeaderEnricher$MessageProcessingHeaderValueMessageProcessor at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1146) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:271) ... 40 more Caused by: java.lang.IllegalArgumentException: Can not set com.follett.fheg.coursemateriallookup.coursematerial.data.dao.PartnerDAO field com.follett.fheg.coursemateriallookup.coursematerial.integration.headerenricher.PartnerHeaderEnricher.partnerDAO to org.springframework.integration.transformer.HeaderEnricher$MessageProcessingHeaderValueMessageProcessor at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146) at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150) at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:37) at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:57) at java.lang.reflect.Field.set(Field.java:657) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:303) ... 44 more </code></pre> <p>From what I have read I needed to add <code>@Component</code> annotation to my bean and/or create the in my application context - neither of these approaches have worked. The DAO it is referring to is declared like so <code>&lt;bean id="partnerDAO" class="com.follett.fheg.coursemateriallookup.coursematerial.data.dao.impl.PartnerDAOImpl"/&gt;</code>. If I remove the <code>@Component</code> annotation I get a red line under <code>@Autowired</code> and a message that says "Autowired members must be defined in the valid spring bean (@Component/@Service etc..)", but after doing that i still get the errors.</p> <p>I am using Spring integration so the bean to auto-wire is defined there. </p> <pre><code>&lt;integration:header-enricher&gt; &lt;integration:header name="#{partnerHeaderKey}" method="getPartner"&gt; &lt;bean class="com.follett.fheg.coursemateriallookup.coursematerial.integration.headerenricher.PartnerHeaderEnricher"/&gt; &lt;/integration:header&gt; &lt;/integration:header-enricher&gt; </code></pre> <p>Any thoughts or help is appreciated! Thank you.</p> <p><strong>Note</strong>: the application runs fine if I drop back down to Spring 2.1.4.RELEASE even without declaring the <code>@Component</code> or <code>&lt;bean&gt;</code> in the application context. </p> <p><strong>UPDATE</strong></p> <p>As blackpanther mentions below I need a element in the application context. I failed to mention that I DO Have this <code>&lt;context:component-scan base-package="com.follett.fheg.coursemateriallookup.coursematerial.integration.headerenricher" /&gt;</code> There is another for the DAO's as well <code>&lt;context:component-scan base-package="com.follett.fheg.coursemateriallookup.coursematerial.data.dao" /&gt;</code></p>
 

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