Having problem in learning JDeveloper base on the tutorial

Hi,
I would say I'm new to J2EE and JDeveloper is the first IDE tool that I'm intend to use. I like the tutorial (http://www.oracle.com/technology/obe/obe11jdev/11/ejb/ejb.html) very much as it is easy to understand. I follow the tutorial steps by steps(Note: I create my own schema and tables instead of installing the schema as in the tutorial) and I found that my JDeveloper interfaces are different with the sample in the tutorial. The version that I downloaded is exacly JDeveloper 11g (Preview 2). Is the version different?
When I trying to run HRFacadeClient I encounter errors.
I wish that I can attach document as I have done screenshot of the interfaces. Pls advise how should I further explain my problem? I really need help in order for me to conitnue my learning.
Wen Xi

Hi,
First, really thanks, now I can follow the tutorial with the exact sample interface.
Before I paste my error, first I wish to say that instead of using thr HR Schema that as stated in the tutortial, I use my own schema (wenxi) with two new tables, there are Employee & Department.
After that I just follow the tutorial steps by steps, I have no problem in compiling the classes. I encounter problem when run the HRFacadeClient. Below is my error message. For tracing, I did try to
comment out the for loop corresponding to the queryEmployeeFindAll() method, FAILED. After that I tried to comment out the for loop corresponding to the hRFacade.queryEmployeesFindByName() method and so on. But all FAILED. Below is the message that display after I have commented out hRFacade.queryEmployeesFindByName() & queryEmployeeFindAll() methods.
[EclipseLink/JPA Client] Adding Java options: -javaagent:D:\JDeveloper\Middleware\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar
D:\JDeveloper\Middleware\jdk160_05\bin\javaw.exe -client -classpath C:\JDeveloper\mywork\HR_EJB_JPA_App\.adf;C:\JDeveloper\mywork\HR_EJB_JPA_App\EJBModel\classes;D:\JDeveloper\Middleware\jdeveloper\modules\oracle.toplink_11.1.1\toplink.jar;D:\JDeveloper\Middleware\jdeveloper\modules\oracle.toplink_11.1.1\antlr.jar;D:\JDeveloper\Middleware\modules\com.bea.core.antlr.runtime_2.7.7.jar;D:\JDeveloper\Middleware\modules\javax.persistence_1.0.0.0_1-0.jar;D:\JDeveloper\Middleware\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar;D:\JDeveloper\Middleware\jdeveloper\modules\oracle.xdk_11.1.1\xmlparserv2.jar;D:\JDeveloper\Middleware\jdeveloper\modules\oracle.xdk_11.1.1\xml.jar;D:\JDeveloper\Middleware\modules\javax.jsf_1.2.0.0.jar;D:\JDeveloper\Middleware\modules\javax.ejb_3.0.1.jar;D:\JDeveloper\Middleware\modules\javax.enterprise.deploy_1.2.jar;D:\JDeveloper\Middleware\modules\javax.interceptor_1.0.jar;D:\JDeveloper\Middleware\modules\javax.jms_1.1.1.jar;D:\JDeveloper\Middleware\modules\javax.jsp_1.1.0.0_2-1.jar;D:\JDeveloper\Middleware\modules\javax.jws_2.0.jar;D:\JDeveloper\Middleware\modules\javax.activation_1.1.0.0_1-1.jar;D:\JDeveloper\Middleware\modules\javax.mail_1.1.0.0_1-1.jar;D:\JDeveloper\Middleware\modules\javax.xml.soap_1.3.1.0.jar;D:\JDeveloper\Middleware\modules\javax.xml.rpc_1.2.1.jar;D:\JDeveloper\Middleware\modules\javax.xml.ws_2.1.1.jar;D:\JDeveloper\Middleware\modules\javax.management.j2ee_1.0.jar;D:\JDeveloper\Middleware\modules\javax.resource_1.5.1.jar;D:\JDeveloper\Middleware\modules\javax.servlet_1.0.0.0_2-5.jar;D:\JDeveloper\Middleware\modules\javax.transaction_1.0.0.0_1-1.jar;D:\JDeveloper\Middleware\modules\javax.xml.stream_1.1.1.0.jar;D:\JDeveloper\Middleware\modules\javax.security.jacc_1.0.0.0_1-1.jar;D:\JDeveloper\Middleware\modules\javax.xml.registry_1.0.0.0_1-0.jar;D:\JDeveloper\Middleware\wlserver_10.3\server\lib\weblogic.jar -javaagent:D:\JDeveloper\Middleware\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar oracle.HRFacadeClient
javax.ejb.EJBException: EJB Exception: ; nested exception is:
     java.lang.IllegalArgumentException: NamedQuery of name: Department.findAll not found.
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.unwrapRemoteException(RemoteBusinessIntfProxy.java:105)
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:87)
     at $Proxy8.queryDepartmentFindAll(Unknown Source)
     at oracle.HRFacadeClient.main(HRFacadeClient.java:25)
Caused by: java.lang.IllegalArgumentException: NamedQuery of name: Department.findAll not found.
     at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getDatabaseQuery(EJBQueryImpl.java:454)
     at org.eclipse.persistence.internal.jpa.EJBQueryImpl.setAsSQLReadQuery(EJBQueryImpl.java:117)
     at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getResultList(EJBQueryImpl.java:503)
     at oracle.HRFacadeBean.queryDepartmentFindAll(HRFacadeBean.java:43)
     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.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:126)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:114)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
     at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:15)
     at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
     at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:30)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
     at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:126)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:114)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
     at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
     at $Proxy76.queryDepartmentFindAll(Unknown Source)
     at oracle.HRFacade_mg5i94_HRFacadeImpl.queryDepartmentFindAll(HRFacade_mg5i94_HRFacadeImpl.java:143)
     at oracle.HRFacade_mg5i94_HRFacadeImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
     at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:230)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
     at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Process exited with exit code 0.
Please advise.
Wen Xi

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