Dependency Injection Failing

Question

Hi,
I am trying to inject instance of class "SaveCardInfoDAO" into ejb method "insertCardInfo". Following are the code snippets.
Controller (Stateless session bean in Project1)
     * Exposed Message to insert the Credit Card Info into the database.
@TransactionAttribute(TransactionAttributeType.REQUIRED)
     public void insertCardInfo(CreditCardDO ccdo){
     SaveCardInfoDAO saveCardInfo = (SaveCardInfoDAO) ApplicationUtil.getSpringContext().getBean("saveCardInfo");
     //SaveCardInfoDAO saveCardInfo = new SaveCardInfoDAO(ccsDataSource);
          try{
               saveCardInfo.openConnection(false);
               saveCardInfo.insertCardInfo(ccdo);
               System.out.println("Insert Success !!!");
          catch(SQLException e){
               ejbContext.setRollbackOnly();
               System.out.println("Insert Failure !!!");
          finally{
               saveCardInfo.closeConnection();
ApplicationUtil class (Initializes the Application context) project2.
public class ApplicationUtil {
     private static final ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
     static{
          init();
     public static void init(){
          DOMConfigurator.configure("resource/ccslogger.xml");
     public static ApplicationContext getSpringContext(){
          return context;
applicationContext.xml (in project2)
<?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"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<aop:aspectj-autoproxy />
<bean id="creditCardAdvice" class="com.fedex.ccs.advice.CCSCreditCardInfoAdvice" />
<bean id="saveCardInfo" class="com.fedex.ccs.dao.SaveCardInfoDAO" />
<bean id="creditCardDO" class="com.fedex.ccs.domain.CreditCardDO" />
</beans>
SaveCardInfoDAO (in project 3)
public class SaveCardInfoDAO extends CCSBaseDAO {
     private PreparedStatement stmt;
     public void setPreparedStatement() throws SQLException{
          stmt=getConnection().prepareStatement(SQLQueriesBase.CCS_Credit_Card_Info.INSERT_CREDIT_CARD_INFO);
     public PreparedStatement getPreparedStatement(){
          return stmt;
     public SaveCardInfoDAO(){
     public SaveCardInfoDAO(DataSource ccsDataSource){
          super(ccsDataSource);
     * Insert credit card information into the database table.
     * @param ccdo
     * @throws SQLException
     public int insertCardInfo(CreditCardDO ccdo)throws SQLException{
          setPreparedStatement();
          stmt.setObject(1, ccdo.getCreditCardType(), Types.VARCHAR);
          stmt.setObject(2, ccdo.getCreditCardID(), Types.VARCHAR);
          stmt.setObject(3, ccdo.getCreditCardBIN(), Types.VARCHAR);
          stmt.setObject(4, ccdo.getCreditCardExpDt(), Types.VARCHAR);
          stmt.setObject(5, ccdo.getAccountNumber(), Types.VARCHAR);
          int result = stmt.executeUpdate();
          stmt.close();
          return result;
Project 1 has dependency on project 2 and project 3.
Project 3 has dendency on Project 2
This gives me following error.
javax.ejb.EJBTransactionRolledbackException: EJB Exception: : java.lang.NoClassDefFoundError: com/fedex/ccs/util/ApplicationUtil
     at com.fedex.ccs.ejb.session.Controller.insertCardInfo(Controller.java:44)
Please help me resolve this issue. Let me know if you need something else.

Answer 1

Hi, Thanks for the reply.
I was trying to integrate Spring AOP and AspectJ (for logging) with EJB 3.0 in a wrong way. Now I have got idea as to what is the approach. But still I am getting a new error. The advice class bean mentioned in the spring AOP config file is giving me following error saying that it cannot find the specified advice class. But it can inject the DAO class instance that is in the same project as the Advice class.
Caused By: java.lang.NoClassDefFoundError: Could not initialize class com.fedex.ccs.advice.CCSCreditCardInfoAdvice
     at sun.reflect.GeneratedConstructorAccessor112.newInstance(Unknown Source)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147)
     at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
     Truncated. see log file for complete stacktrace
If in my AOP config xml file I remove the bean definition of Advice class that it works fine and it injects DAO. But there is no logging done. Can you give me an headstart as to what is the appropriate way of integrating Spring AOP and AspectJ with EJB 3.0.
Thanks and Regards
Damodar