5 Replies Latest reply on Aug 26, 2008 3:23 PM by 1womps1

Could not instantiate seam components

1womps1 Aug 25, 2008 10:34 PM

Hi every body ,i'm trying to merge a table from database to a datatable,i actually made it but i don't know where i touched and it doesn't work anymore,could please help me
here is following stack trace

org.jboss.seam.InstantiationException: Could not instantiate Seam component: userssearch
     at org.jboss.seam.Component.newInstance(Component.java:1986)
     at org.jboss.seam.Component.getInstance(Component.java:1876)
     at org.jboss.seam.Component.getInstan
ce(Component.java:1843)
     at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55)
     at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50)
     at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
     at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)
     at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
     at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
     at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
     at org.jboss.el.parser.AstValue.getValue(AstValue.java:63)
     at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
     at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
     at javax.faces.component.UIOutput.getValue(UIOutput.java:173)
     at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
     at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
     at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)
     at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:896)
     at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
     at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
     at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
     at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:199)
     at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:194)
     at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
     at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
     at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
     at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
     at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
     at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
     at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
     at java.lang.Thread.run(Unknown Source)
Caused by: javax.naming.NameNotFoundException: UtilisateursAction not bound
     at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
     at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
     at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
     at org.jnp.server.NamingServer.lookup(NamingServer.java:267)
     at org.jnp.server.NamingServer.lookup(NamingServer.java:270)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)
     at javax.naming.InitialContext.lookup(Unknown Source)
     at org.jboss.seam.Component.instantiateSessionBean(Component.java:1290)
     at org.jboss.seam.Component.instantiate(Component.java:1276)
     at org.jboss.seam.Component.newInstance(Component.java:1970)
     ... 75 more

this is my employee.xhtml

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
          xmlns:s="http://jboss.com/products/seam/taglib"
          xmlns:ui="http://java.sun.com/jsf/facelets"
         xmlns:a="http://richfaces.org/a4j"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:rich="http://richfaces.org/rich"
          template="layout/template.xhtml">

          <ui:define name="body">

               <div class="menu"><h:form>
                    <h:commandButton  value="Demandes" ></h:commandButton>
                    <h:commandButton value="Envoyer requete" ></h:commandButton>
                    <h:commandButton value="Utilisateurs"></h:commandButton>
               </h:form></div>
               <h:messages styleClass="message" />

               <h:form id="admin">

<rich:panel>
   <f:facet name="header">Administration</f:facet>
                    
  <div class="section">
  <h1>Chercher un utilisateur</h1>

     <h:form id="searchCriteria">
     <fieldset> 
        <h:inputText id="searchString" value="#{userssearch.searchString}" style="width: 165px;">
         <a:support id="onkeyup" event="onkeyup" actionListener="#{userssearch.find}" reRender="searchResults" />
       </h:inputText>
       &#160;
        <a:commandButton id="findUsers" value="Chercher utilisateur" action="#{userssearch.find}" reRender="searchResults"/>
       &#160;
       <a:status id="status">
          <f:facet id="StartStatus" name="start">
             <h:graphicImage id="SpinnerGif" value="/img/spinner.gif"/>
          </f:facet>
       </a:status>
        <br/>
       <h:outputLabel id="MaximumResultsLabel" for="pageSize">Maximum results:</h:outputLabel>&#160;
       <h:selectOneMenu id="pageSize" value="#{userssearch.pageSize}">
          <f:selectItem id="PageSize5" itemLabel="5" itemValue="5"/>
          <f:selectItem id="PageSize10" itemLabel="10" itemValue="10"/>
          <f:selectItem id="PageSize20" itemLabel="20" itemValue="20"/>
       </h:selectOneMenu>
    </fieldset>
    </h:form>
    
</div>

<a:outputPanel id="searchResults">
  <div class="section">
     <h:outputText id="NousersFoundMessage" value="Aucun utilisateur trouve" rendered="#{users != null and users.rowCount==0}"/>
     <h:dataTable id="users" value="#{users}" var="hot" rendered="#{users.rowCount>0}">
          <h:column id="column1">
               <f:facet id="NameFacet" name="header" >Username</f:facet>
               #{hot.username}
          </h:column>
          <h:column id="column2">
               <f:facet id="AddressFacet" name="header" >name</f:facet>
               #{hot.name}
          </h:column>
          <h:column id="column3">
               <f:facet id="passwordFacet" name="header" >Password</f:facet>
               #{hot.password}
          </h:column> 
          <h:column id="column4">
               <f:facet id="mailFacet" name="header" >Mail</f:facet>
               #{hot.mail}
          </h:column>
          
     </h:dataTable>
     <s:link id="MoreResultsLink" value="More results" action="#{userssearch.nextPage}" rendered="#{usersearch.nextPageAvailable}"/>
  </div>
</a:outputPanel>


    </rich:panel>

                 </h:form>

          </ui:define>
</ui:composition>

UtilisateursAction.java

//
package com.bean.workflow;

import java.util.List;

import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.security.Restrict;

@Stateful
@Name("userssearch")
@Scope(ScopeType.SESSION)
@Restrict("#{identity.loggedIn}")
public class UtilisateursAction implements Utilisateurs
{
   
   @PersistenceContext
   private EntityManager em;
   
   private String searchString;
   private int pageSize = 10;
   private int page;
   private boolean nextPageAvailable = false;
   
   @DataModel
   private List<User> users;
   
   public void find()
   {
      page = 0;
      queryUsers();
   }
   public void nextPage()
   {
      page++;
      queryUsers();
   }
      
   private void queryUsers()
   {
       List<User> results = em.createQuery("select u from User u where lower(a.name) like #{pattern} or lower(a.username) like #{pattern} or lower(a.mail) like #{pattern}")
           .setMaxResults(pageSize+1)
           .setFirstResult( page * pageSize )
           .getResultList();


       nextPageAvailable = results.size() > pageSize;
       if (nextPageAvailable) {
           users = results.subList(0,pageSize);
       } else {
           users = results;
       }
   }
   
   public boolean isNextPageAvailable()
   {
       return nextPageAvailable;
   }
   
   public int getPageSize() {
      return pageSize;
   }
   
   public void setPageSize(int pageSize) {
      this.pageSize = pageSize;
   }
   
   @Factory(value="pattern", scope=ScopeType.EVENT)
   public String getSearchPattern()
   {
      return searchString==null ? 
            "%" : '%' + searchString.toLowerCase().replace('*', '%') + '%';
   }
   
   public String getSearchString()
   {
      return searchString;
   }
   
   public void setSearchString(String searchString)
   {
      this.searchString = searchString;
   }
   
   @Remove
   public void destroy() {}
}

thanks for your help

1. Re: Could not instantiate seam components

1womps1 Aug 25, 2008 11:21 PM (in response to 1womps1)

I have actually noticed that all the components don't work,and i am having the same stacktrace,could you please tell where could it come from
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2. Re: Could not instantiate seam components

sjmenden Aug 26, 2008 12:52 AM (in response to 1womps1)
Well, a number of things can cause this.

Do you have an EAR or a WAR, EJB3s are only valid in an EAR

Do you have a @Local on your userssearch interface

In components.xml do you have <core:init debug="true" jndi-pattern="@jndiPattern@"/> ?

Is this a standard seam-gen project, have you modified it any?
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3. Re: Could not instantiate seam components

1womps1 Aug 26, 2008 10:26 AM (in response to 1womps1)

-I have an EAR
-i do have a @Local on the usersearch Interface
-Yes i have the propertie
-it is a seam-gen project ,I have changed anything.

Actually All the actions are not working,The examples from seam are working very well but not my project,i believe it is a problem in the jndi,couldn't it?
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4. Re: Could not instantiate seam components

blabno Aug 26, 2008 10:32 AM (in response to 1womps1)

Show components.xml, check if seam.properties is in root of your EJB module, check if EJB module is packaged in EAR, show your application.xml, show deployment log.
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5. Re: Could not instantiate seam components

1womps1 Aug 26, 2008 3:23 PM (in response to 1womps1)

I found the problem,actually that was a mistake in the mysqldb-ds.mysql.thanks for your help :)
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