Autowiring Problem - NullPointerException.

[Craig Worsell]

Hi, I have an Web MVC application that uses Hibernate to access a MySql db. I am using @Autowired to inject the Services into my classes. This works with my @Controller class, the services I require are available, however I have another class CustomerDownloader that is run via Quartz Scheduler which also requires the service but the service is not being injected, can anyone help?

CustomerDownloader (Service not injected)

public class CustomerDownloader implements ICustomerDownloader {    
    @Autowired(required=true)
    private DataFeedService dataFeedService;
    
    private static final Logger LOGGER = Logger.getLogger(CustomerDownloader.class);
    
    other fields a non default constructor and methods, etc....

IndexController (Service Injected)

@Controller
public class IndexController {
    @Autowired
    private CustomerService dataFeedService;

Partial Root-Context.xml

<bean id="dataFeedService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
        <property name="target">
            <bean class="com.rsa.rafweb.service.DataFeedServiceImpl">
                <property name="datafeedDAO" ref="datafeedDAO"/>
            </bean>
        </property>
        <property name="transactionAttributes">
            <props>
                <prop key="get*">PROPAGATION_SUPPORTS,readOnly</prop>
                <prop key="*">PROPAGATION_REQUIRED</prop>
            </props>
        </property>
    </bean>

<bean id="datafeedDAO" class="com.rsa.rafweb.dao.DataFeedDAOHib"
        p:sessionFactory="sessionFactory"
        p:sessionFactory-ref="sessionFactory"/>

<import resource="applicationContext-scheduler.xml" />

Servlet-Context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:beans="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
	
	<!-- Enables the Spring MVC @Controller programming model -->
	<mvc:annotation-driven />
        <context:annotation-config />

	<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
	<!-- <resources mapping="/resources/**" location="/resources/" /> -->
	
	<context:component-scan base-package="com.rsa.rafweb" />
        <mvc:resources mapping="/resources/**" location="/resources/" />
</beans:beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
  <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>/WEB-INF/log4j.xml</param-value>
  </context-param>

  <context-param>
    <param-name>webAppRootKey</param-name>
    <param-value>RAF</param-value>
  </context-param>

  <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener
    </listener-class>
  </listener>
  
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/spring/root-context.xml,
<!--        /WEB-INF/spring/applicationContext-scheduler.xml -->
    </param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <servlet>
    <servlet-name>appServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>
          /WEB-INF/spring/appServlet/servlet-context.xml
      </param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>appServlet</servlet-name>
    <url-pattern>*.html</url-pattern>
  </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
</web-app>

Thanks in advance.

[Craig Worsell]

I've resolved the problem, but just in case anyone else has this problem, I have added another entry key into my applicationContext-scheduler.xml file:

<bean id="runTask" class="com.rsa.rafweb.scheduler.RunTask" />
 
	<!-- Spring Quartz -->
	<bean name="runMeJob" class="org.springframework.scheduling.quartz.JobDetailBean">
 
		<property name="jobClass" value="com.scheduler.RunMeJob" />
 
		<property name="jobDataAsMap">
		  <map>
			<entry key="runTask" value-ref="runTask" />
                        <entry key="dataFeedService" value-ref="dataFeedService"/>
		  </map>
		</property>
 
	</bean>

and then added:

JobDataMap jobDataMap = context.getJobDetail().getJobDataMap();
        DataFeedService dataFeedService = (DataFeedService) jobDataMap.get("dataFeedService");

into my job class.

Cheers.