5 Replies Latest reply on Jul 14, 2011 6:59 PM by Luiz Henrique

    Class Loader Problem...

    Casey Boyd Novice

      JBoss AS: 4.2.0
      Seam: 2.0.0 BETA 1
      Java: 1.6.0_02

      I downloaded the most recent:

      ajax4jsf-1.1.1.jar
      richfaces-3.0.1.jar

      Deleted my old ones and put these in WEB-INF/lib

      I get the following error trying to use the HtmlDataTable class....




      java.lang.NoClassDefFoundError: Lorg/richfaces/component/html/HtmlDataTable;



      There have been some posts about this being a "Class Loader" problem...

      How do I fix this?

      Thanks

      indy

        • 1. Re: Class Loader Problem...
          Kristen Young Newbie

          I've been having the same problem.

          • 2. Re: Class Loader Problem...
            Casey Boyd Novice

            Can anyone help here?

            I am really stuck...

            Any idea, i mean, anything, would be really appreciated....

            Thanks

            indy

            • 3. Re: Class Loader Problem...
              Casey Boyd Novice

              Here is the code....

              
              <!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:f="http://java.sun.com/jsf/core"
               xmlns:h="http://java.sun.com/jsf/html"
               xmlns:rich="http://richfaces.ajax4jsf.org/rich"
               xmlns:a4j="https://ajax4jsf.dev.java.net/ajax"
               template="layout/template.xhtml">
              
               <ui:define name="body">
              
               <rich:tabPanel>
              
               <rich:tab label="Users">
              
               <a4j:form ajaxSubmit="true">
              
               <rich:dataTable id="usersList"
               rows="10"
               onRowMouseOver="this.style.backgroundColor='#F1F1F1'"
               onRowMouseOut="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'"
               var="users"
               value="#{usermanager.users}"
               binding="#{workflowBean.usersTable}">
              
               <a4j:support event="onRowClick" actionListener="#{usermanager.userClick}"/>
              
               <f:facet name="header">
               <rich:columnGroup>
               <rich:column><h:outputText value="User Name" /></rich:column>
               <rich:column><h:outputText value="First Name" /></rich:column>
               <rich:column><h:outputText value="Middle Name" /></rich:column>
               <rich:column><h:outputText value="Last Name" /></rich:column>
               </rich:columnGroup>
               </f:facet>
              
               <rich:column><h:outputText value="#{users.username}" /></rich:column>
               <rich:column><h:outputText value="#{users.firstname}" /></rich:column>
               <rich:column><h:outputText value="#{users.middlename}" /></rich:column>
               <rich:column><h:outputText value="#{users.lastname}" /></rich:column>
              
               </rich:dataTable>
              
               <rich:spacer height="20" />
              
               <rich:datascroller for="usersList" maxPages="50" />
              
               <rich:tabPanel>
              
               <rich:tab label="Information">
              
               <h:panelGrid columns="2">
              
               <h:outputText value="First Name" />
               <h:inputText value="Casey" id="fname" />
              
               <h:outputText value="Middle Name" />
               <h:inputText value="dfjakldsa" id="mname" />
              
               <h:outputText value="Last Name" />
               <h:inputText value="Kjfkdlsa" id="lname" />
              
               </h:panelGrid>
              
               </rich:tab>
              
               <rich:tab label="Roles">
               this is where the users roles are listed
               </rich:tab>
              
               </rich:tabPanel>
              
               </a4j:form>
              
               </rich:tab>
              
               <rich:tab label="Roles">
               Role Administration
               </rich:tab>
              
               </rich:tabPanel>
              
               </ui:define>
              
              </ui:composition>
              
              

              
              import static org.jboss.seam.ScopeType.SESSION;
              
              import java.util.List;
              
              import org.hibernate.Criteria;
              import org.hibernate.Session;
              
              import javax.ejb.Stateless;
              
              import javax.faces.event.ActionEvent;
              
              import org.jboss.seam.annotations.In;
              import org.jboss.seam.annotations.Logger;
              import org.jboss.seam.annotations.Out;
              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;
              import org.jboss.seam.log.Log;
              import org.jboss.seam.security.Identity;
              
              import org.richfaces.component.html.HtmlDataTable;
              
              import com.yourencore.innovationnetwork.object.Role;
              import com.yourencore.innovationnetwork.object.User;
              
              @Stateless
              @Name("usermanager")
              @Scope(SESSION)
              @Restrict("#{identity.loggedIn}")
              public class UserManager implements UserManagerInterface {
              
               @In
               private User user;
              
               @In
               private Session inetworkDatabase;
              
               @Logger
               Log log;
              
               @In("#{uiComponent['usersList']")
               HtmlDataTable usersTable;
              
               @Out
               public List<User> getUsers() {
              
               List<User> retUsers = null;
              
               try{
              
               log.info("com.yourencore.innovationnetwork.action.UserManager.getUsers(): Trying to get users for - " + user.getUsername());
              
               if(user != null){
              
               Criteria criteria = inetworkDatabase.createCriteria(User.class);
              
               retUsers = criteria.list();
              
               }else{
              
               log.error("com.yourencore.innovationnetwork.action.UserManager.getUsers(): Can not retrieve User from Web Session");
               }
              
               }catch(Exception e){
              
               log.error("com.yourencore.innovationnetwork.action.UserManager.getUsers(): Error - " + e.toString());
               }
              
               return retUsers;
               }
              
               public void userClick(ActionEvent event){
              
               log.info("com.yourencore.innovationnetwork.action.UserManager.userClick(): User record clicked on ");
              
               User test = (User) usersTable.getRowData();
              
               log.info("com.yourencore.innovationnetwork.action.UserManager.userClick(): %%%%%%%%%%%%%%% User record clicked on " + test.getUsername());
              
               }
              }
              


              • 4. Re: Class Loader Problem...
                Casey Boyd Novice

                ok...i know some one here can point me in the right direction...

                Here is some more info...

                I am using Facelets...

                I am just trying to get the row the user clicked on using the dataTable and Ajax4jsf...

                Ok, when I offered cookies on the Portal forum i got a response, how about pie? Everyone likes pie... :)

                The HtmlDataTable class in the the jar within my WEB-INF/lib...

                thanks

                indy

                • 5. Re: Class Loader Problem...
                  Luiz Henrique Newbie

                  If exists many applications with richfaces do you need isolate it this with jboss.  Create the jboss-web.xml in web-inf folder.

                  See this link http://thorgull.be/doku.php?id=tutorials:jboss:classloaderisolation.