Debugging “Injection of autowired dependencies failed” Error in Spring+Hibernate

Question

I have just started with Spring Framework and trying to develop and run a simple a app using Spring + Hibernate + Maven for dependency management.

I have a ContactController in which a property of type ContactService is Autowired. But when i packaged it into war and deployed on tomcat it throws a org.springframework.beans.factory.BeanCreationException with following messages :

org.springframework.beans.factory.BeanCreationException: Error creating bean with name  
'sessionFactory' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: 
Invocation of init method failed; nested exception is org.hibernate.MappingException: 
An AnnotationConfiguration instance is required to use <mapping 
class="org.kodeplay.contact.form.Contact"/>

So I commented out that property from the ContactController Class along with all its references and re deployed it. But still it shows the same error.

This is the only controller in the entire application and an object implementing the ContactService interface is not being used any where else.

Whats going on here ? Am I missing something ?

Edit : Adding the code for spring-servlet.xml

<?xml  version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <context:annotation-config/>

    <context:component-scan base-package="org.kodeplay.contact" /> 

    <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- Internationalization -->
    <bean id="messageSource"
        class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basename" value="classpath:messages" />
        <property name="defaultEncoding" value="UTF-8" />
    </bean>

    <!-- To load database connection details from jdbc.properties file -->
    <bean id="propertyConfigurer" 
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
        p:location="/WEB-INF/jdbc.properties" />

    <!-- To establish a connection to the database -->
    <bean id="dataSource"
        class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
        p:driverClassName="${jdbc.driverClassName}"
        p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
        p:password="${jdbc.password}" />

    <!-- Hibernate configuration -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="annotatedClasses">
        <list>
            <value>org.kodeplay.contact.form.Contact</value>
        </list>
        </property>        
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>        
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <tx:annotation-driven/>

    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
</beans>

code for hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <mapping class="org.kodeplay.contact.form.Contact" />
    </session-factory>

</hibernate-configuration>

Thanks

Answer 1

I suspect this be a clash between AnnotationSessionFactoryBean and hibernate.cfg.xml . If you're using the former, you shouldn't need the latter. If you use both, you're going to have to duplicate some settings, and the cfg file might be eclipsing the Spring config.

Whatever you have in hibernate.cfg.xml you should be able to move into the bean definition for the AnnotationSessionFactoryBean , and that should resolve your error.

Answer 2

I guess you try to configure Hibernate with org.springframework.orm.hibernate3.LocalSessionFactoryBean . However, you use annotations in Hibernate mapping, therefore you need to use org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean instead.