Error getting value ?

Bonjour,
j'ai un problème sur lequel je me casse les dents depuis plusieurs jours, j'ai pourtant cherché à le régler tout seul mais n'y arrivant vraiment pas je vous appelle à l'aide.

J'ai une page sur laquelle je veux afficher un tableau contenant ce qu'il y a dans ma bdd.

Code:

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<h:dataTable value="#{books.books}" var="b" border="1">
				<!-- name -->
				<h:column>
					<f:facet name="header">
						Name
					</f:facet>
					#{b.name}
				</h:column>
			</h:dataTable>
		</ui:define>

mon faces-config placé dans le web-inf :

Code:

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	<managed-bean>
        <managed-bean-name>books</managed-bean-name>
	        <managed-bean-class>com.groupe5.managelib.web.managedbeans.BookManagedBean</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>

mon managed bean :

Code:

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public class BookManagedBean extends AbstractManagedBean {
 
	public int getBooksNbr(){
		return getBooks().size();
	}
 
	public List<Book> getBooks(){
		return getCustomerSession().getBooks();
	}
}

J'utilise jboss et eclipse.

L'erreur en question au lancement de la page :

Code:

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javax.faces.el.EvaluationException: /book.xhtml @17,59 value="#{books.books}": Exception getting value of property books of base of type : com.groupe5.managelib.web.managedbeans.BookManagedBean
	at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:60)
	at javax.faces.component.UIData.getValue(UIData.java:1019)
	at javax.faces.component.UIData.createDataModel(UIData.java:785)
	at javax.faces.component.UIData.getDataModel(UIData.java:765)
	at javax.faces.component.UIData.getRowCount(UIData.java:191)
	at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:210)
	at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123)
	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
	at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:234)
	at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
	at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:174)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.el.EvaluationException: Bean: com.groupe5.managelib.web.managedbeans.BookManagedBean, property: books
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:442)
	at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:82)
	at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:141)
	at com.sun.el.parser.AstValue.getValue(AstValue.java:117)
	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:192)
	at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
	at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56)
	... 30 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:438)
	... 36 more
Caused by: java.lang.NoClassDefFoundError
	at org.jboss.aspects.security.SecurityActions.peekRunAsIdentity(SecurityActions.java:341)
	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:86)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:181)
	at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
	at $Proxy133.getBooks(Unknown Source)
	at com.groupe5.managelib.web.managedbeans.BookManagedBean.getBooks(BookManagedBean.java:13)
	... 41 more

Si vous pouviez m'indiquer la route à suivre... Merci !

Tu as une java.lang.NoClassDefFoundError dans ta trace...
J'imagine que cela se passe lors du:
Code:

1 2 3 4 5 // java.lang.NoClassDefFoundError // at BookManagedBean.getBooks(BookManagedBean.java:13): return getCustomerSession() //<== dans l'impl. de cela ?!

J'ai cette classe abstraite dont laquelle dérive mes managedbean :

Code:

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public class AbstractManagedBean {
 
	protected CustomerSession customerSession;
 
	public AbstractManagedBean() {
		super();
	}
 
	public CustomerSession getCustomerSession() {
		if(customerSession==null){
			customerSession = CustomerServiceLoader.getEmployeeService();
		}
		return customerSession;
	}
 
	public void setCustomerSession(CustomerSession customerSession) {
		this.customerSession = customerSession;
	}
}

Je n'ai pourtant pas d'erreur a la compilation ou autre...
Comment faire pour savoir si le getcustomer me renvoi bien quelque chose ?

Alleluia ! lol
J'ai trouvé ! Oui ça venait bien du sessionbean, je m'étais trompé sur la source...
Merci !