title: not able to inject DAO in spring bean
body: <p>In spring 3.o, I am trying to inject my DAO layer object to my singleTon bean using :</p>
  
  <pre><code>ApplicationContext applicaionContext = new ClassPathXmlApplicationContext(ApplicationConstants.APP_PROPERTY_CONFIG_PATH);
  
          TemplateManagementDAO  templateManagementDAO =(TemplateManagementDAO) applicaionContext.getBean("templateManagementDAO");
  </code></pre>
  
  <p>But it gives the exception :</p>
  
  <pre><code>java.lang.NoClassDefFoundError: org.springframework.beans.FatalBeanException
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:581)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:983)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:879)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
      at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
      at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
      at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
      at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
      at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4655)
      at org.apache.catalina.core.StandardContext.start(StandardContext.java:5364)
      at com.sun.enterprise.web.WebModule.start(WebModule.java:345)
      at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:986)
      at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:970)
      at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:704)
      at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1649)
      at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1254)
      at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:182)
      at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:278)
      at com.sun.enterprise.admin.event.AdminEventMulticaster.invokeModuleDeployEventListener(AdminEventMulticaster.java:1005)
      at com.sun.enterprise.admin.event.AdminEventMulticaster.handleModuleDeployEvent(AdminEventMulticaster.java:992)
      at com.sun.enterprise.admin.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:470)
      at com.sun.enterprise.admin.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:182)
      at com.sun.enterprise.admin.server.core.DeploymentNotificationHelper.multicastEvent(DeploymentNotificationHelper.java:308)
      at com.sun.enterprise.deployment.phasing.DeploymentServiceUtils.multicastEvent(DeploymentServiceUtils.java:231)
      at com.sun.enterprise.deployment.phasing.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:298)
      at com.sun.enterprise.deployment.phasing.ApplicationStartPhase.runPhase(ApplicationStartPhase.java:132)
      at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:108)
      at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:966)
      at com.sun.enterprise.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:609)
      at com.sun.enterprise.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:653)
      at com.sun.enterprise.admin.mbeans.ApplicationsConfigMBean.start(ApplicationsConfigMBean.java:773)
      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 com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:390)
      at com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:373)
      at com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:477)
      at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
      at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
      at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:90)
      at $Proxy1.invoke(Unknown Source)
      at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:304)
      at com.sun.enterprise.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:170)
      at com.sun.enterprise.admin.jmx.remote.server.callers.InvokeCaller.call(InvokeCaller.java:69)
      at com.sun.enterprise.admin.jmx.remote.server.MBeanServerRequestHandler.handle(MBeanServerRequestHandler.java:155)
      at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.processRequest(RemoteJmxConnectorServlet.java:122)
      at com.sun.enterprise.admin.jmx.remote.server.servlet.RemoteJmxConnectorServlet.doPost(RemoteJmxConnectorServlet.java:193)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
      at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:315)
      at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
      at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
      at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
      at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
      at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291)
      at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:666)
      at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:597)
      at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:872)
      at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
      at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
      at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
      at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:264)
      at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:117)
  </code></pre>
  
  <p>Can anyone suggest me why is is not able to acces DAO object into the bean layer ??
  Thanks,
  Gunjan Shah.</p>