JBOSS and JPA query- Adding a new customer - servlets

Question

I have been battling with this for the last few days and am at the end of my tether. Please can someone help me figure out where/why I am going wrong. Thank you very much indeed.
Here is my story:
I am building a web EE application using JBOSS 6.10, and Potgres9.1. Ultimately, I will be using JSF for views but for now I am using a simple Servlet (com.shop.cart.ShoppingCartClient.java) to test the database connectivity and I am injecting a CustomerManager sateless session bean to the servlet and this session bean has a method that executes EntityManager,persist() to store a newly created Customer entity.
The application is called HawelyPlaceshop- the war file deploys ok and when I invoke the Servlet on the browser (Chrome), I get the following error in the jBOSS console:
Latest Error:
12:09:24,768 WARN [org.hibernate.util.JDBCExceptionReporter] SQL Error: 0, SQLState: 23502
12:09:24,768 ERROR [org.hibernate.util.JDBCExceptionReporter] ERROR: null value in column "customerid" violates not-null constraint
Detail: Failing row contains (null, null, null, null).
12:09:24,785 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/HawleyPlaceShop].[/ShoppingCartClient]] Servlet.service() for servlet /ShoppingCartClient threw exception: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not insert: [com.shop.entity.Customer]
at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:183) [:0.0.2]
at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:251) [:0.0.2]
at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.required(CMTTxInterceptor.java:349) [:0.0.2]
at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invoke(CMTTxInterceptor.java:209) [:0.0.2]
at org.jboss.ejb3.tx2.aop.CMTTxInterceptorWrapper.invoke(CMTTxInterceptorWrapper.java:52) [:0.0.2]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) [:1.0.0.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.4]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:182) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.core.context.CurrentInvocationContextInterceptor.invoke(CurrentInvocationContextInterceptor.java:47) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67) [:1.0.1]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.interceptor.EJB3TCCLInterceptor.invoke(EJB3TCCLInterceptor.java:86) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:333) [:1.7.21]
at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:390) [:1.7.21]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) [:1.7.0_65]
at org.jboss.ejb3.proxy.impl.handler.session.SessionLocalProxyInvocationHandler$LocalContainerInvocation.invokeTarget(SessionLocalProxyInvocationHandler.java:184) [:1.0.11]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.async.impl.interceptor.AsynchronousClientInterceptor.invoke(AsynchronousClientInterceptor.java:143) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.proxy.impl.handler.session.SessionLocalProxyInvocationHandler$LocalInvokableContextHandler.invoke(SessionLocalProxyInvocationHandler.java:159) [:1.0.11]
at com.sun.proxy.$Proxy166.invoke(Unknown Source)
at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:185) [:1.0.11]
at com.sun.proxy.$Proxy189.persistNewCustomer(Unknown Source)
at com.shop.cart.ShoppingCartClient.processRequest(ShoppingCartClient.java:41) [:]
at com.shop.cart.ShoppingCartClient.doGet(ShoppingCartClient.java:77) [:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [:1.0.0.Final]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:324) [:6.1.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.1.0.Final]
at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:67) [:6.1.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.1.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.1.0.Final]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [:6.1.0.Final]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [:6.1.0.Final]
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.1.0.Final]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final]
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.1.0.Final]
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159) [:6.1.0.Final]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.1.0.Final]
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.1.0.Final]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.1.0.Final]
at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.1.0.Final]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.1.0.Final]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.1.0.Final]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.1.0.Final]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.1.0.Final]
at java.lang.Thread.run(Unknown Source) [:1.7.0_65]
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not insert: [com.shop.entity.Customer]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1215) [:3.6.6.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1148) [:3.6.6.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1154) [:3.6.6.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:678) [:3.6.6.Final]
at org.jboss.jpa.impl.tx.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:206) [:2.0.0]
at com.shop.entity.CustomerManagerBean.persistNewCustomer(CustomerManagerBean.java:58) [:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) [:1.7.0_65]
at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122) [jboss-aop.jar:2.2.2.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:72) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:127) [:1.1.3]
at org.jboss.weld.integration.ejb.interceptor.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:151) [:6.1.0.Final]
at org.jboss.weld.integration.ejb.interceptor.Jsr299BindingsInterceptor.doAroundInvoke(Jsr299BindingsInterceptor.java:122) [:6.1.0.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) [:1.7.0_65]
at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:80) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:71) [:1.1.3]
at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:127) [:1.1.3]
at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:46) [:6.1.0.Final]
at org.jboss.weld.integration.deployer.metadata.WeldLifecycleInterceptor.doAroundInvoke(WeldLifecycleInterceptor.java:55) [:6.1.0.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) [:1.7.0_65]
at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:80) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:71) [:1.1.3]
at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:76) [:1.1.3]
at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:62) [:1.1.3]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [:1.7.0_65]
at java.lang.reflect.Method.invoke(Unknown Source) [:1.7.0_65]
at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174) [jboss-aop.jar:2.2.2.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:74) [:1.1.3]
at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_1281133.invoke(InvocationContextInterceptor_z_fillMethod_1281133.java) [:]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:90) [:1.1.3]
at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_1281133.invoke(InvocationContextInterceptor_z_setup_1281133.java) [:]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.async.impl.interceptor.AsynchronousServerInterceptor.invoke(AsynchronousServerInterceptor.java:128) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.4]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:68) [:1.7.21]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.2.GA]
at org.jboss.ejb3.core.context.SessionInvocationContextAdapter.proceed(SessionInvocationContextAdapter.java:95) [:1.7.21]
at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:247) [:0.0.2]
... 60 more
Caused by: org.hibernate.exception.ConstraintViolationException: could not insert: [com.shop.entity.Customer]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96) [:3.6.6.Final]
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) [:3.6.6.Final]
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:64) [:3.6.6.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2345) [:3.6.6.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2852) [:3.6.6.Final]
at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71) [:3.6.6.Final]
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273) [:3.6.6.Final]
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:320) [:3.6.6.Final]
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203) [:3.6.6.Final]
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129) [:3.6.6.Final]
at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:69) [:3.6.6.Final]
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:179) [:3.6.6.Final]
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:135) [:3.6.6.Final]
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61) [:3.6.6.Final]
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:808) [:3.6.6.Final]
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:782) [:3.6.6.Final]
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:786) [:3.6.6.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:672) [:3.6.6.Final]
... 117 more
Caused by: org.postgresql.util.PSQLException: ERROR: null value in column "customerid" violates not-null constraint
Detail: Failing row contains (null, null, null, null).
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2198) [:]
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1927) [:]
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) [:]
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) [:]
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:419) [:]
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:365) [:]
at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:365) [:6.1.0.Final]
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:94) [:3.6.6.Final]
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:57) [:3.6.6.Final]
... 132 more
Customer Entity bean
package com.shop.entity;
import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SecondaryTable;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
/**
* #author Lalin
*
*/
#Entity(name="Customer")
#Table(name="Customer")
#SecondaryTable(name="Customer")
public class Customer implements Serializable {
//public Customer(){} // non arg constructor - can have others
#Id
#Column (name = "CustomerId", nullable = false, insertable = true)
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer CustomerId;
#Basic(fetch=FetchType.EAGER)
#Column(name="Name", table="Customer")
private String Name;
#Basic(fetch=FetchType.EAGER)
#Column(name="Telephone", table="Customer")
private String Telephone;
#Basic(fetch=FetchType.EAGER)
#Column(name="MobilePhone", table="Customer")
private String MobilePhone;
private static final long serialVersionUID = 1L;
public Integer getCustomerId() {
return CustomerId;
}
public void setCustomerId(Integer customerId) {
this.CustomerId= customerId;
}
public String getName() {
return Name;
}
public void setName(String name) {
this.Name = name;
}
public String getTelephone() {
return Telephone;
}
public void setTelephone(String telephone) {
this.Telephone = telephone;
}
public String getMobilePhone() {
return MobilePhone;
}
public void setMobilePhone(String mobilePhone) {
this.MobilePhone = mobilePhone;
}
}

Answer 1

You have #Entity annotation on your persistent class, but it does not define table properties:
#Entity
#Table(name="CUSTOMER")
public class Customer implements Serializable {
// ...
}
or whatever table name is.

Answer 2

Its working!!!! It appears that when using JPA you have to use different names for the POJO (with the Entity annotation) and the table in the database. Initially I named them both the same (Customer) It works beautifully when I changed names (POJO:CustomerEntity, Postgres table: customer). I am still using the sequence and I have t the primary key datatype as SERIAL.