Affable Bean Java EJB Glassfish tutorial issues in netbeans

Question

I have been following the affableBean tutorial from the NetBeans site located here . I have run into an issue where I am unable to submit a purchase order(checkout.jsp). When I submit the form data, I receive an http 500 status and the following errors:

WARNING: EJB5184:A system exception occurred during an invocation on EJB OrderManager, method: public int session.OrderManager.placeOrder(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,cart.ShoppingCart) WARNING: EJB5184:A system exception occurred during an invocation on EJB OrderManager, method: public int session.OrderManager.placeOrder(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,cart.ShoppingCart) WARNING: javax.ejb.EJBException at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5215) at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5113) at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4901) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2045) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1994) at com.sun.ejb.containers.EJBLocalObjectInvocationHan dler.invoke(EJBLocalObjectInvocationHandler.java:222) at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:89) at com.sun.proxy.$Proxy163.placeOrder(Unknown Source) at session. EJB31_Generated_ OrderManager _Intf_ Bean _.placeOrder(Unknown Source) at controller.ControllerServlet.doPost(ControllerServlet.java:201) at javax.servlet.http.HttpServlet.service(HttpServlet.java:688) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(Cont ainerMapper.java:317) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at com.sun.grizzly.util.AbstractThr eadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:724)

Caused by: javax.validation.ConstraintViolationException: Bean Validation constraint(s) violated while executing Automatic Bean Validation on callback event:'prePersist'. Please refer to embedded ConstraintViolations for details. at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.validateOnCallbackEvent(BeanValidationListener.java:90) at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.prePersist(BeanValidationListener.java:62) at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyListener(DescriptorEventManager.java:698) at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyEJB30Listeners(DescriptorEventManager.java:641) at org.eclipse.persistence.descriptors.DescriptorEventManager.executeEvent(DescriptorEventManager.java:200) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectClone(UnitOfWorkImpl.java:4257) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNotRegisteredNewObjectForPersist(UnitOfWorkImpl.java:4234) at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.registerNotRegisteredNewObjectForPersist(RepeatableWriteUnitOfWork.java:513) at org.eclipse.pers istence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4176) at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:440) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.persist(EntityManagerWrapper.java:269) at session.OrderManager.addOrder(OrderManager.java:88) at session.OrderManager.placeOrder(OrderManager.java:56) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5388) at com.sun.ejb.EjbInvocation. invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370) at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5360) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214) ... 30 more

Line 201 of ControllerServlet is: int orderId= orderManager.placeOrder(name,email,phone,address,cityRegion,ccNumber,cart);

Line 88 and 56 of OrderManager is:em.persist(customer); em.persist(order);

While running a debug session, it seems that persist method has null value in both case.my conclusion is that because there is no id genreated by database so it persist method has null value. i do not understand what i do now to persist data in the my database table. thanks for reply.

Answer 1

The customer_order table doesn't expect a null value of datecreated (though it provided a default timestamp). The CustomerOrder ejb also puts a @NotNull annotation on dateCreated. Yet line 201 does not pass the dateCreated value for CustomerOrder object constrnction.

So you either do one of the following - Disable the @NotNull annotation (though bad idea!) OR - provide the dateCreated value in the default constructor of the CustomerOrder class.

public CustomerOrder() {
    // set dateCreated to timestamp ...
    java.util.Date date= new java.util.Date();
    dateCreated = new Timestamp(date.getTime());
}

Edgar