Getting exception - java.lang.IllegalStateException: JTA EntityManager cannot use getTransaction ()

Question

I am new to JPA. I am trying to create an EJB 3.0 + JPA (hibernate) application. When I save data in a database, I get below the exception.

SessoinBean Method

@PersistenceUnit private EntityManagerFactory emf; @Override @TransactionAttribute(TransactionAttributeType.REQUIRED) public void insterCustomerDetails(Customer customer) { // TODO Auto-generated method stub try{ //System.out.println("properties:::"+em.getProperties()); //System.out.println("Model :::"+em.getMetamodel()); System.out.println("Name ::::" + customer.getName() + "::customer id ::"+customer.getCustomer_id()+"::email::"+customer.getEmail_id()+"::address::"+customer.getAddress()+ ":::ph number::"+customer.getPhNumber()); EntityManager em = emf.createEntityManager(); EntityTransaction et = em.getTransaction(); et.begin(); em.persist(customer); et.commit(); em.close(); }catch(Exception e){ e.printStackTrace(); } } 

persistence.xml

 <persistence-unit name="RetailUnit" > <provider>org.hibernate.ejb.HibernatePersistence</provider> <!-- the JNDI data source--> <jta-data-source>java/customer</jta-data-source> <properties> <!-- if this is true, hibernate will print (to stdout) the SQL it executes, so you can check it to ensure it not doing anything crazy <property name="hibernate.connection.driver_class" value="org.apache.derby.jdbc.ClientDriver"/> <property name="hibernate.connection.url" value="jdbc:derby://localhost:1527/company;create=true" /> <property name="hibernate.connection.username" value="user" /> <property name="hibernate.connection.password" value="123" /> --> <property name="hibernate.show_sql" value="true" /> <property name="hibernate.format_sql" value="true" /> <!-- since most database servers have slightly different versions of the SQL, Hibernate needs you to choose a dialect so it knows the subtleties of talking to that server --> <property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect" /> <property name="hibernate.archive.autodetection" value="class"/> <!-- this tell Hibernate to update the DDL when it starts, very useful for development, dangerous in production --> <property name="hibernate.hbm2ddl.auto" value="create" /> </properties> </persistence-unit> 

Exception

 SEVERE: java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction() at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:985) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.getTransaction(EntityManagerWrapper.java:857) at retail.ejb.service.CustomerSessionBeanImpl.insterCustomerDetails(CustomerSessionBeanImpl.java:24) 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:601) 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:601) 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.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:206) at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79) at $Proxy248.insterCustomerDetails(Unknown Source) 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:601) at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:241) at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:152) at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:227) at retail.ejb.service.__CustomerSessionBeanRemote_Remote_DynamicStub.insterCustomerDetails(retail/ejb/service/__CustomerSessionBeanRemote_Remote_DynamicStub.java) at retail.ejb.service._CustomerSessionBeanRemote_Wrapper.insterCustomerDetails(retail/ejb/service/_CustomerSessionBeanRemote_Wrapper.java) at retail.web.mbean.CustomerMB.createCustomer(CustomerMB.java:58) 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:601) at com.sun.el.parser.AstValue.invoke(AstValue.java:254) at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302) at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 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(ContainerMapper.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.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:722) 

Please help me with this.

Answer 1

If you use inside the EJB, you don’t need to use the transaction manually - all methods are transactional by default - you even have @TransactionAttribute(TransactionAttributeType.REQUIRED) in your method, which is the default setting.

A transaction starts at the beginning of the method if the transaction is not available and is not transmitted when the method returns. Manual transaction management is not required.

If you have no good reason to use EntityManagerFactory , it might be better to insert the EntityManager correctly rather than retrieve it from EMF for each call:

 @PersistenceContext private EntityManager em;