PLEASE HELP java.lang.LinkageError
Hello,
I have an jsf managed bean that tries to exchange a dto with the ejb tier as follows:
publicvoid performSearch(){
SearchRequestDTO searchRequestDto =new SearchRequestDTO(this.keyword,this.country,this.postcode,this.commentExists,this.rating, this.websiteExists);
SearchSessionLocal searchSession = lookupSearchSessionBean();
List<EstablishmentLocal> retrievedEstablishments = searchSession.performSearch(searchRequestDto);
this.setRetrievedEstablishments(retrievedEstablishments);
System.out.println("here");
}
Here is the exception I get:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfillingthis request.
exception
javax.servlet.ServletException: #{SearchManagedBean.performSearch}: javax.faces.el.EvaluationException: java.lang.LinkageError: loader constraints violated when linking arcoiris/SearchRequestDTOclass
javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
root cause
javax.faces.FacesException: #{SearchManagedBean.performSearch}: javax.faces.el.EvaluationException: java.lang.LinkageError: loader constraints violated when linking arcoiris/SearchRequestDTOclass
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
javax.faces.component.UICommand.broadcast(UICommand.java:312)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
Here is the full managed bean:
package arcoiris;
import java.util.ArrayList;
import java.util.List;
import javax.faces.model.SelectItem;
publicclass SearchManagedBean{
//Collected from search form
private String keyword;
private String country;
privateint[] postcode;
privateboolean commentExists;
privateint rating;
privateboolean websiteExists;
//Used to populate form
private List<SelectItem> availableCountries;
private List<SelectItem> availablePostcodes;
private List<SelectItem> availableRatings;
//Retrieved from ejb tier
private List<EstablishmentLocal> retrievedEstablishments;
//Service locator
private arcoiris.ServiceLocator serviceLocator;
//Constructor
public SearchManagedBean(){
System.out.println("within constructor SearchManagedBean");
}
//Getters and setters
public String getKeyword(){
return keyword;
}
publicvoid setKeyword(String keyword){
this.keyword = keyword;
}
public String getCountry(){
return country;
}
publicvoid setCountry(String country){
this.country = country;
}
publicboolean isCommentExists(){
return commentExists;
}
publicvoid setCommentExists(boolean commentExists){
this.commentExists = commentExists;
}
publicint getRating(){
return rating;
}
publicvoid setRating(int rating){
this.rating = rating;
}
publicboolean isWebsiteExists(){
return websiteExists;
}
publicvoid setWebsiteExists(boolean websiteExists){
this.websiteExists = websiteExists;
}
public List<SelectItem> getAvailableCountries(){
List<SelectItem> countries =new ArrayList<SelectItem>();
SelectItem si_1 =new SelectItem();
SelectItem si_2 =new SelectItem();
SelectItem si_3 =new SelectItem();
si_1.setValue("ecuador");
si_1.setLabel("ecuador");
si_2.setValue("colombia");
si_2.setLabel("colombia");
si_3.setValue("peru");
si_3.setLabel("peru");
countries.add(si_1);
countries.add(si_2);
countries.add(si_3);
return countries;
}
publicvoid setAvailableCountries(List<SelectItem> countries){
this.availableCountries = availableCountries;
}
public List<SelectItem> getAvailablePostcodes(){
List<SelectItem> postcodes =new ArrayList<SelectItem>();
SelectItem si_1 =new SelectItem();
SelectItem si_2 =new SelectItem();
SelectItem si_3 =new SelectItem();
si_1.setValue(75001);
si_1.setLabel("75001");
si_2.setValue(75002);
si_2.setLabel("75002");
si_3.setValue(75003);
si_3.setLabel("75003");
postcodes.add(si_1);
postcodes.add(si_2);
postcodes.add(si_3);
return postcodes;
}
publicvoid setAvailablePostcodes(List<SelectItem> availablePostcodes){
this.availablePostcodes = availablePostcodes;
}
public List<SelectItem> getAvailableRatings(){
List<SelectItem> ratings =new ArrayList<SelectItem>();
SelectItem si_1 =new SelectItem();
SelectItem si_2 =new SelectItem();
SelectItem si_3 =new SelectItem();
si_1.setValue(1);
si_1.setLabel("1");
si_2.setValue(2);
si_2.setLabel("2");
si_3.setValue(3);
si_3.setLabel("3");
ratings.add(si_1);
ratings.add(si_2);
ratings.add(si_3);
return ratings;
}
publicvoid setAvailableRatings(List<SelectItem> availableRatings){
this.availableRatings = availableRatings;
}
publicint[] getPostcode(){
return postcode;
}
publicvoid setPostcode(int[] postcode){
this.postcode = postcode;
}
public List<EstablishmentLocal> getRetrievedEstablishments(){
return retrievedEstablishments;
}
publicvoid setRetrievedEstablishments(List<EstablishmentLocal> retrievedEstablishments){
this.retrievedEstablishments = retrievedEstablishments;
}
//Business methods
publicvoid performSearch(){
SearchRequestDTO searchRequestDto =new SearchRequestDTO(this.keyword,this.country,this.postcode,this.commentExists,this.rating, this.websiteExists);
SearchSessionLocal searchSession = lookupSearchSessionBean();
List<EstablishmentLocal> retrievedEstablishments = searchSession.performSearch(searchRequestDto);
this.setRetrievedEstablishments(retrievedEstablishments);
System.out.println("here");
}
private arcoiris.ServiceLocator getServiceLocator(){
if (serviceLocator ==null){
serviceLocator =new arcoiris.ServiceLocator();
}
return serviceLocator;
}
private arcoiris.SearchSessionLocal lookupSearchSessionBean(){
try{
return ((arcoiris.SearchSessionLocalHome) getServiceLocator().getLocalHome("java:comp/env/ejb/SearchSessionBean")).create();
}catch(javax.naming.NamingException ne){
java.util.logging.Logger.getLogger(getClass().getName()).log(java.util.logging.Level.SEVERE,"exception caught" ,ne);
thrownew RuntimeException(ne);
}catch(javax.ejb.CreateException ce){
java.util.logging.Logger.getLogger(getClass().getName()).log(java.util.logging.Level.SEVERE,"exception caught" ,ce);
thrownew RuntimeException(ce);
}
}
}
and here is the full dto class:
package arcoiris;
import java.io.Serializable;
publicclass SearchRequestDTOimplements Serializable{
private String keyword;
private String country;
privateint[] postcode;
privateboolean commentExists;
privateint rating;
privateboolean websiteExists;
public SearchRequestDTO(){
}
public SearchRequestDTO(String keyword, String country,int[] postcode,boolean commmentExists,int rating,boolean websiteExists){
this.keyword=keyword;
this.country= country;
this.postcode = postcode;
this.commentExists = commentExists;
this.rating = rating;
this.websiteExists = websiteExists;
}
public String getKeyword(){
return keyword;
}
publicvoid setKeyword(String keyword){
this.keyword = keyword;
}
public String getCountry(){
return country;
}
publicvoid setCountry(String country){
this.country = country;
}
publicint[] getPostcode(){
return postcode;
}
publicvoid setPostcode(int[] postcode){
this.postcode = postcode;
}
publicboolean isCommentExists(){
return commentExists;
}
publicvoid setCommentExists(boolean commmentExists){
this.commentExists = commmentExists;
}
publicint getRating(){
return rating;
}
publicvoid setRating(int rating){
this.rating = rating;
}
publicboolean isWebsiteExists(){
return websiteExists;
}
publicvoid setWebsiteExists(boolean websiteExists){
this.websiteExists = websiteExists;
}
}
here is the signature of the session ejb business method:
public List<EstablishmentLocal> performSearch(SearchRequestDTO searchRequestDto)
I use Jboss 4.0.3.
Can anyone help please?
Julien Martin.
ps. the two dto classes (web and ejb tier) are exactly the same!!
Message was edited by:
balteo
