I have a problem when I try to run my application. I'm using struts with hibernate. I'm using MyEclipse for the development. I followed the standard instructions in MyEclipse to add hibernate capabilities to my project and created the HibernateSessionFactory class as required. I get an error when I try to run my application on the sun web server. It seems to compile fine. Following is the error:

[#|2006-03-23T17:41:20.843-0600|SEVERE|sun-appserver-pe8.2|javax.enterprise.system.container.web|_ThreadID=11;|WebModule[/MyOSB]action: null
java.lang.ClassCastException: com.osb.hibernate.HibernateSessionFactory
at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1142)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
at javax.servlet.GenericServlet.init(GenericServlet.java:261)
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:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:118)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1093)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:931)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4183)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4536)
at com.sun.enterprise.web.WebModule.start(WebModule.java:241)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:827)
at org.apache.catalina.core.ContainerBase.access$000(ContainerBase.java:125)
at org.apache.catalina.core.ContainerBase$PrivilegedAddChild.run(ContainerBase.java:147)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:809)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:646)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1331)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1040)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:160)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:246)
at com.sun.enterprise.admin.event.AdminEventMulticaster.invokeModuleDeployEventListener(AdminEventMulticaster.java:918)
at com.sun.enterprise.admin.event.AdminEventMulticaster.handleModuleDeployEvent(AdminEventMulticaster.java:905)
at com.sun.enterprise.admin.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:427)
at com.sun.enterprise.admin.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:139)
at com.sun.enterprise.admin.server.core.DeploymentNotificationHelper.multicastEvent(DeploymentNotificationHelper.java:288)
at com.sun.enterprise.deployment.phasing.DeploymentServiceUtils.multicastEvent(DeploymentServiceUtils.java:155)
at com.sun.enterprise.deployment.phasing.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:258)
at com.sun.enterprise.deployment.phasing.StartPhase.runPhase(StartPhase.java:87)
at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:71)
at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:639)
at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:185)
at com.sun.enterprise.admin.mbeans.ApplicationsConfigMBean.deploy(ApplicationsConfigMBean.java:519)
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:585)
at com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:305)
at com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:360)
at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:213)
at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:220)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:815)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:784)
at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:54)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:272)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.invokeDeploymentService(AutoDeployer.java:504)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployModule(AutoDeployer.java:485)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployWarModule(AutoDeployer.java:433)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployWarModule(AutoDeployer.java:426)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployAll(AutoDeployer.java:246)
at com.sun.enterprise.deployment.autodeploy.AutoDeployControllerImpl$AutoDeployTask.run(AutoDeployControllerImpl.java:345)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
|#]

[#|2006-03-23T17:41:20.843-0600|INFO|sun-appserver-pe8.2|javax.enterprise.system.container.web|_ThreadID=11;|WebModule[/MyOSB]Marking servlet action as unavailable|#]

[#|2006-03-23T17:41:20.843-0600|SEVERE|sun-appserver-pe8.2|javax.enterprise.system.container.web|_ThreadID=11;|WebModule[/MyOSB]Servlet /MyOSB threw load() exception
javax.servlet.UnavailableException
at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1169)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
at javax.servlet.GenericServlet.init(GenericServlet.java:261)
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:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:118)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1093)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:931)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4183)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4536)
at com.sun.enterprise.web.WebModule.start(WebModule.java:241)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:827)
at org.apache.catalina.core.ContainerBase.access$000(ContainerBase.java:125)
at org.apache.catalina.core.ContainerBase$PrivilegedAddChild.run(ContainerBase.java:147)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:809)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:646)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1331)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1040)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:160)
at com.sun.enterprise.server.WebModuleDeployEventListener.moduleDeployed(WebModuleDeployEventListener.java:246)
at com.sun.enterprise.admin.event.AdminEventMulticaster.invokeModuleDeployEventListener(AdminEventMulticaster.java:918)
at com.sun.enterprise.admin.event.AdminEventMulticaster.handleModuleDeployEvent(AdminEventMulticaster.java:905)
at com.sun.enterprise.admin.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:427)
at com.sun.enterprise.admin.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:139)
at com.sun.enterprise.admin.server.core.DeploymentNotificationHelper.multicastEvent(DeploymentNotificationHelper.java:288)
at com.sun.enterprise.deployment.phasing.DeploymentServiceUtils.multicastEvent(DeploymentServiceUtils.java:155)
at com.sun.enterprise.deployment.phasing.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:258)
at com.sun.enterprise.deployment.phasing.StartPhase.runPhase(StartPhase.java:87)
at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:71)
at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:639)
at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:185)
at com.sun.enterprise.admin.mbeans.ApplicationsConfigMBean.deploy(ApplicationsConfigMBean.java:519)
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:585)
at com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:305)
at com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:360)
at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:213)
at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:220)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:815)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:784)
at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:54)
at $Proxy1.invoke(Unknown Source)
at com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:272)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.invokeDeploymentService(AutoDeployer.java:504)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployModule(AutoDeployer.java:485)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployWarModule(AutoDeployer.java:433)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployWarModule(AutoDeployer.java:426)
at com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployAll(AutoDeployer.java:246)
at com.sun.enterprise.deployment.autodeploy.AutoDeployControllerImpl$AutoDeployTask.run(AutoDeployControllerImpl.java:345)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

My application is a very simple one - adding the name and category of a product into the database. It uses struts for the control and modelling (ActionForm, Action and ActionServlet) and hibernate for the database transactions.

I followed the standard instructions in MyEclipse to add the hibernate capabilities. I added both the hibernate core and advanced libraries and I'm pretty sure it copied everything into my project workspace. I'm stumped as to why I'm getting this error. I'm not sure if this is a hibernate related problem or something to do with myEclipse. I consulted the myEclipse website & forums and also searched various other forums for a solution but couldn't find any information why this particular error might occur. Any assistance in debugging this problem would be highly appreciated!

Obviously failing on SessionFactory with class cast, so I'd check your config file..

can you post your hibernate.cfg.xml file... and you are sure that you are using the correct hibernate config file on creating the SessionFactory?

if you use



then this will use the hibernate.properties

if you use:


Then this will use the hibernate.cfg.xml