0 Replies Latest reply on Apr 4, 2012 6:49 AM by zemunk

    Can not set java.lang.Integer field Xyz.id to Xyz - IllegalArgumentException

    zemunk Newbie

      Hello,

       

      I came across this error while trying to persist some values. Since I am new to the technology and the project was developed by someone else, I have difficulties in finding the source of the problem.

       

      Here is the entity class:

       

       

          @Entity

          @Table(schema = "webshop_statistik", name = "adressStatistik")

          @SequenceGenerator(name = "adressStatistik_id_seq", sequenceName = "webshop_statistik.adressstatistik_id_seq")

       

          public class AdressStatistik {

       

              /**

               * automatisch vortlaufend erzeugter Primary Key

               */

              @Id

              @GeneratedValue(generator = "adressStatistik_id_seq")

              private Integer id;

       

              @Column(length = 50)

              private String ort;

       

              ...   

       

              public Integer getId() {

                  return id;

              }

              public void setId(Integer id) {

                  this.id = id;

              }

       

              public String getOrt() {

                  return ort;

              }

              public void setOrt (String ort) {

                  this.ort = ort;

              }

       

              ...

          }

       

       

      and the calling method:

       

      @Stateless

      @WebService

      @WebContext(authMethod="BASIC", secureWSDLAccess=false)

      @SecurityDomain("gfo")

      @RolesAllowed({"webshop"})

      public class Statistikmgmt implements IStatistikmgmt {

       

          @PersistenceContext(unitName="gfo_pu")

          private EntityManager em;

       

           ...   

       

          @SuppressWarnings({ "unchecked"})

          @WebMethod

          @Override

          public void persistAdressStatistik(@WebParam(name="adressStatistik")AdressStatistik a){

                     ...

                      em.persist(a); // the exception is thrown here

                     ...

          }

      }

       

      I get the same error for other beans as well. Here is a part of the error log:

       

      13:24:12,311 ERROR [org.jboss.ejb3.invocation] (http-localhost-127.0.0.1-8080-6) JBAS014134: EJB Invocation failed on component Statistikmgmt for method public void de.intern.webservices.Statistikmgmt.persistAdressStatistik(de.webshop_statistik.bean.entity.AdressStatistik): javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of de.webshop_statistik.bean.entity.AdressStatistik.id

      ...

      13:24:12,372 ERROR [org.jboss.as.webservices.invocation.InvocationHandlerEJB3] (http-localhost-127.0.0.1-8080-6) Method invocation failed with exception: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of de.webshop_statistik.bean.entity.AdressStatistik.id: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of de.webshop_statistik.bean.entity.AdressStatistik.id

      ...

      13:24:12,431 WARNUNG [org.apache.cxf.phase.PhaseInterceptorChain] (http-localhost-127.0.0.1-8080-6) Application {http://webservices.intern.de/}StatistikmgmtService#{http://webservices.intern.de/}persistAdressStatistik has thrown exception, unwinding now: org.apache.cxf.interceptor.Fault: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of de.webshop_statistik.bean.entity.AdressStatistik.id

      ...

      ...

      Caused by: java.lang.IllegalArgumentException: Can not set java.lang.Integer field de.webshop_statistik.bean.entity.AdressStatistik.id to de.webshop_statistik.bean.entity.AdressStatistik

       

      The project is already working under Jboss 5 and is now in the process of being deployed to Jboss 7.1.

       

      Thank you for helping me out!