1 Reply Latest reply on Apr 24, 2009 4:08 PM by monkeyden
webapp runs not reliable

fma Apr 24, 2009 4:02 PM
Good afternoon,
the facts:
jboss-seam-2.1.1.GA
JBoss AS 5.0
Eclipse Version: 3.4.1
Java 1.6
the problem:
My Webapp runs and after a few clicks (one button) i get a block of exceptions. It happens after 20, 2, 5 , etc. clicks. There are problems with the lifecycle but I don't know which?
the discription:
I have a problem with seam and my first aplication. The application has a few labels, a inputbox and a button.
The user should input a number and the programm should say if the number is greater or smaller than 6. If the user click the button, the method testIt test the number which is written by the user. The user are able to click the buttons a few times and adter that the webapss throw exceptions.
I have used the hello world example of Seam and have added three files: meindatum.java (Entity), Zahlenraten.java and Zahlenraten.xhtml. The JSP page Zahlenraten.xhtml use methods and variables from Zahlenraten.java.
The files:
Zahlenraten.java:

package org.domain.testvier.session;

import java.util.Arrays;
import java.util.List;
import java.util.Random;

import javax.annotation.PostConstruct;
import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.ejb.Stateless;
import javax.interceptor.Interceptors;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Begin;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.End;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.ejb.SeamInterceptor;
import org.jboss.seam.framework.EntityQuery;



@Name("zr")
@Stateless

public class ZahlenRaten implements ZahlenRatenLocal
{
        
        @PersistenceContext
        private EntityManager entityManager;

        

        public int meineZahl = 6;
        public int versuche = 0;
        private meinDatum meinDatum = new meinDatum();
        @In(required = false)
        private String input;

        @Out(required = false)
        private List<meinDatum> fans;

        @Out
        private String[] meinText;

        //@Out
        private String meinTest;

        

        
        
        @Factory("fans")
        public void getUsersList() {
                fans = entityManager.createQuery("select p from meinDatum p")
                                .getResultList();
                System.out.println("meinText2:" + meinTest);
        }

        @Factory("meinText")
        public void getUsersLi() {
                System.out.println("meinText:" + meinText);
                meinText = new String[]{"leer","ssdfsdf"};
                //return null;
        }

        public ZahlenRaten() {
                // List listeMitAutos =
                // entityManager.createQuery("from Auto").getResultList();
                try {
                        List<meinDatum> list = entityManager.createQuery(
                                        "select p from meindatum p").getResultList();
                        System.out.println("Ich habe nun eine Liste. Toll,oder: "
                                        + list.size());
                        for (int i = 0; i < list.size(); i++) {
                                System.out.println(list.get(i).getDate().toLocaleString());
                        }
                } catch (Exception e) {
                        System.out.println("Fehelr: " + e.getStackTrace());
                        System.out.println(e);
                }
                // TODO Auto-generated constructor stub
                // resultP = "Bitte Zahlen eingebem";
                System.out.println("Werde (ZahlenRaten) erstellt");
                // setEjbql(EJBQL);
                // setRestrictionExpressionStrings(Arrays.asList(RESTRICTIONS));
                // setMaxResults(25);
        }

        

        
        public void begin() {
                meineZahl = new Random().nextInt(100);
        }

        public String start() {
                System.out.println("grrrr: " + meineZahl);
                // System.out.println ("Daten: "+meinDatum.getDate().toLocaleString());
                return "lllllllllllllllllllll";
        }

        // @End
        public void win() {

        }

        public void testIt() {
                // Datenbabk versuch
                System.out.println("Werde aufgerufen");
                System.out.println("Zahl: " + input);
                
                //System.out.print("Zahl3: " + user_id);
                versuche++;
                //meinText = "Versuche" + versuche;
                meinTest ="??";
                if (input != null) {
                        try {
                                if (Integer.valueOf(input) > 6) {
                                        meinText[0]  = ("kleiner");
                                } else {
                                meinText[0] = ("größer");
                                }
                        }

                        catch (Exception e) {
                                System.out.println("Keine Zahl eingegebebn");
                        }
                } else {
                        System.out.println("Wieso ist es null?");
                }
        }

        public meinDatum getMeindatum() {
                return meinDatum;
        }

         @Remove
        // @End
        // @Destroy
        public void Nichts() {
                 System.out.println("remoing bean");
        }
}

Zahlenraten.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">

<ui:define name="body">
<h:form>
  <h:outputText/>
       <h:outputFormat value="#{meinText[1]}" /> 
         <!--<h:outputFormat value="#{meinTest}" />--> 
        <h:outputFormat value="#{fans.size()}" />
        <br/>
 <!--  <h:outputFormat value="#{res}" style="color:#000040;font-style:italic;font-size:large;background-color:#FFFF80;">
                                
                        </h:outputFormat> -->
    <rich:panel>
    <f:facet name="header">Welcome!</f:facet>
        <!--  <h:outputFormat value="#{resultP}" />-->
 
                        <h:inputText id = "ff" value="#{input}"    >
                        

                         </h:inputText>
                        <h:commandButton  action="#{zr.testIt}" value="testIt:-(" />   <h:outputFormat value="#{meinText[0]}" /> 
                        
                        
    <p>Aus der Datenbank entnommende Werte: </p>
 <h:dataTable value="#{fans}" var="ll">
         
 </h:dataTable>
 <h:selectOneListbox size="10" value="0">
    <s:selectItems value="#{fans}" var="fan" 
     label="( #{fan.date})" />
   
  </h:selectOneListbox>
 
   </rich:panel>
    </h:form>
</ui:define> 
</ui:composition>



The Exception: #########################################################################
Exception during request processing: 
Caused by javax.servlet.ServletException with message: "@Out attribute requires non-null value: zr.meinText" 
javax.faces.webapp.FacesServlet.service(FacesServlet.java:277)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)Caused by javax.ejb.EJBTransactionRolledbackException with message: "@Out attribute requires non-null value: zr.meinText" 
org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:115)
org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:194)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.security.RoleBasedAuthorizationInterceptorv2.invoke(RoleBasedAuthorizationInterceptorv2.java:201)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:159)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:65)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:219)
org.jboss.ejb3.proxy.handler.ProxyInvocationHandlerBase.invoke(ProxyInvocationHandlerBase.java:261)
org.jboss.ejb3.proxy.handler.session.SessionSpecProxyInvocationHandlerBase.invoke(SessionSpecProxyInvocationHandlerBase.java:101)
$Proxy211.getUsersList(Unknown Source)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
org.javassist.tmp.java.lang.Object_$$_javassist_1.getUsersList(Object_$$_javassist_1.java)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)
org.jboss.seam.Component.callComponentMethod(Component.java:2211)
org.jboss.seam.Component.getInstanceFromFactory(Component.java:2043)
org.jboss.seam.Component.getInstance(Component.java:1978)
org.jboss.seam.Component.getInstance(Component.java:1950)
org.jboss.seam.Component.getInstance(Component.java:1944)
org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55)
org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50)
org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
javax.faces.component.UIData.getValue(UIData.java:609)
javax.faces.component.UIData.getDataModel(UIData.java:1124)
javax.faces.component.UIData.setRowIndex(UIData.java:451)
javax.faces.component.UIData.iterate(UIData.java:1190)
javax.faces.component.UIData.processDecodes(UIData.java:1009)
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1026)
javax.faces.component.UIForm.processDecodes(UIForm.java:209)
org.ajax4jsf.component.AjaxViewRoot$1.invokeContextCallback(AjaxViewRoot.java:392)
org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:238)
org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:409)
com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)Caused by org.jboss.seam.RequiredException with message: "@Out attribute requires non-null value: zr.meinText" 
org.jboss.seam.Component.outjectAttribute(Component.java:1731)
org.jboss.seam.Component.outjectAttributes(Component.java:1722)
org.jboss.seam.Component.outject(Component.java:1575)
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:86)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:29)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:31)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83)
org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70)
org.jboss.ejb3.EJBContainerInvocationWrapper.invokeNext(EJBContainerInvocationWrapper.java:59)
org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:73)
org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:59)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72)
org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_22057664.invoke(InvocationContextInterceptor_z_fillMethod_22057664.java)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88)
org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_22057664.invoke(InvocationContextInterceptor_z_setup_22057664.java)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:68)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:194)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.security.RoleBasedAuthorizationInterceptorv2.invoke(RoleBasedAuthorizationInterceptorv2.java:201)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:159)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:65)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:219)
org.jboss.ejb3.proxy.handler.ProxyInvocationHandlerBase.invoke(ProxyInvocationHandlerBase.java:261)
org.jboss.ejb3.proxy.handler.session.SessionSpecProxyInvocationHandlerBase.invoke(SessionSpecProxyInvocationHandlerBase.java:101)
$Proxy211.getUsersList(Unknown Source)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
org.javassist.tmp.java.lang.Object_$$_javassist_1.getUsersList(Object_$$_javassist_1.java)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)
org.jboss.seam.Component.callComponentMethod(Component.java:2211)
org.jboss.seam.Component.getInstanceFromFactory(Component.java:2043)
org.jboss.seam.Component.getInstance(Component.java:1978)
org.jboss.seam.Component.getInstance(Component.java:1950)
org.jboss.seam.Component.getInstance(Component.java:1944)
org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55)
org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50)
org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72)
org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
javax.faces.component.UIData.getValue(UIData.java:609)
javax.faces.component.UIData.getDataModel(UIData.java:1124)
javax.faces.component.UIData.setRowIndex(UIData.java:451)
javax.faces.component.UIData.iterate(UIData.java:1190)
javax.faces.component.UIData.processDecodes(UIData.java:1009)
javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1026)
javax.faces.component.UIForm.processDecodes(UIForm.java:209)
org.ajax4jsf.component.AjaxViewRoot$1.invokeContextCallback(AjaxViewRoot.java:392)
org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:238)
org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:409)
com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)

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I hope somebody can explain me, what I do wrong. Is there a problem with the lifecycle? With the @stateless annotation. How can it happen, that the exceptin comes after a few clicks and not while starting oder by the first click?
Many questions.....
Yours sincerely,
fma
1. Re: webapp runs not reliable

monkeyden Apr 24, 2009 4:08 PM (in response to fma)
The exception tells you that a value for meinText is required for outjection, because you have the Out annotation on it. Either add the required attribute to the annotation or, if it's required, fix your code to assign a value at all times.

@Out(required=false) private String[] meinText;
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