[jboss-user] [JBoss Getting Started Documentation] - org.jboss.seam.InstantiationException: Could not instantiate

[DeepaVenkat]

Hi,

I'm a newbie to JSF/JBOSS/EJB3.0

I did the setup correctly and was able to load the jsp pages.

I created a Session Bean,entity bean and two xhtml pages.

When i try to enter the details and click submit button, i'm getting Instantiationexception when invoking the session bean.

Can anybody help me out.

SessionBean:

@Stateless
@Name("registerSessionBean")
public class RegisterSessionBean implements Register{
	
	@In
	private UsersImpl users;
	
	@In
	private EntityManager entityManager;
	
	@Logger
	private Log log;
	
	public String register()
	{
		List query = entityManager.createQuery("select username from User where username=#{user.username}").getResultList();
		if (query.size()==0)
	      {
			entityManager.persist(users);
	         
	         log.info("Registered new user #{users.username}");                              
	         return "/registered.xhtml";                        
	      }
	      else
	      {
	         FacesMessages.instance().add("User #{users.username} already exists");           
	         return null;
	      }
	   }

	}


LoginUser.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: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"
                xmlns:a4j="http://richfaces.org/a4j">

<ui:define name="body">
<h:form>
	<h:messages globalOnly="true" styleClass="message"/>
    	 <rich:panel>
     		<f:facet name="header">Welcome to the Create User Page</f:facet>
    		<h:panelGrid columns="2" style="align:center" >
    			<h:outputText value="#{message.firstName}"  />
    			<h:panelGroup>
    			<h:inputText id="firstName" value="#{users.firstName}" required="true"/>
    			<h:message for="firstName" styleClass="message" />
    			</h:panelGroup>
				<h:outputText value="#{message.lastName}" />
    			<h:panelGroup>
    			<h:inputText id="lastName" value="#{users.lastName}" required="true"  />
    			<h:message for="lastName" styleClass="message" />
    			</h:panelGroup>
    			<h:outputText value="#{message.userName}" />
    			<h:inputSecret id="userName" value="#{users.userName}" /> 
    			
			    		
    		</h:panelGrid>	
    		<h:panelGroup>
    			<h:commandButton  action="#{registerSessionBean.register}" value="Login" />
    			<h:commandButton  action="cancel" value="Cancel" immediate="true" />    			
    		</h:panelGroup>
    </rich:panel>    
    </h:form>
   </ui:define>
 
</ui:composition>


Components.xml

<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
            xmlns:core="http://jboss.com/products/seam/core"
            xmlns:persistence="http://jboss.com/products/seam/persistence"
            xmlns:drools="http://jboss.com/products/seam/drools"
            xmlns:bpm="http://jboss.com/products/seam/bpm"
            xmlns:security="http://jboss.com/products/seam/security"
            xmlns:mail="http://jboss.com/products/seam/mail"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation=
                "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd 
                 http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.0.xsd 
                 http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.0.xsd
                 http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.0.xsd
                 http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.0.xsd
                 http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.0.xsd
                 http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd">
                 
  <core:init jndi-pattern="ear-1.0-SNAPSHOT/#{ejbName}/local"/>

  <core:manager concurrent-request-timeout="500" 
                 conversation-timeout="10000" 
                 conversation-id-parameter="cid"
                 parent-conversation-id-parameter="pid"/>
    
  <persistence:managed-persistence-context name="entityManager"
                                     auto-create="true"
                      persistence-unit-jndi-name="java:/arplabEntityManagerFactory"/> 





Persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" 
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" 
             version="1.0">
             
    <persistence-unit name="arplab">
      org.hibernate.ejb.HibernatePersistence
     <!-- MySQL Local  -->
      <jta-data-source>java:/arpLabMySQLLocalDatasource</jta-data-source>
      
         
         
         
         
         
      
   </persistence-unit>
   





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