Exception while trying to iterate over List
I am new to Seam, and getting an exception while attempting to use a ui:repeat tag to iterate over a List contained in a stateful session bean
Here is the bean
@Stateful
@Scope(ScopeType.SESSION)
@Name("employerManager")
public class EmployerManagerImpl implements EmployerManager {
@PersistenceContext
EntityManager em;
@In @Out
private Employer employer=new Employer();
private List<Employer> employers;
/**
* Add employer to database
* @return The faces page name of the next view
*/
public String add() {
em.persist(employer);
return("addemployerdone");
}
/**
* Delete employer from database
* @return The faces page name of the next view
*/
public String delete() {
em.remove(employer);
return ("deleteemployerdone");
}
/**
* Update employer in database
* @return The faces page name of the next view
*/
public String update() {
em.merge(employer);
return ("updateemployerdone");
}
@Create
@SuppressWarnings("unchecked")
public void find() {
employers = em.createQuery("select e from Employer e").getResultList();
}
/**
*
*/
@Remove @Destroy
public void destroy() {
}
/**
* @return Collection containing all employers
*/
public List<Employer> getEmployers()
{
return employers;
}
}Here is the page snippit
<ui:repeat value="#{employerManager.employers}" var="emp">
<f:verbatim>#{emp.name}</f:verbatim>
</ui:repeat>Here is the exception
SEVERE: Error Rendering View[/admin/location.xhtml]
javax.faces.el.EvaluationException: javax.el.ELException: /admin/location.xhtml
@22,75 value="#{employerManager.employers}": Error reading 'employers' on type o
rg.javassist.tmp.java.lang.Object_$$_javassist_0
at javax.faces.component.ValueBindingValueExpressionAdapter.getValue(Val
ueBindingValueExpressionAdapter.java:106)
at com.sun.facelets.component.UIRepeat.getValue(UIRepeat.java:143)
at com.sun.facelets.component.UIRepeat.getDataModel(UIRepeat.java:121)
at com.sun.facelets.component.UIRepeat.setIndex(UIRepeat.java:305)
at com.sun.facelets.component.UIRepeat.process(UIRepeat.java:333)
at com.sun.facelets.component.UIRepeat.encodeChildren(UIRepeat.java:617)
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.jav
a:592)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePha
se.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(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
.java:83)
at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
.java:69)
at org.jboss.seam.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:44)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter
.java:69)
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:179)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC
onnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
6)
at java.lang.Thread.run(Thread.java:595)Any help would be greatly appreciated
