a4j:Support and Component Binding don't like each other

[Sasha Baker]

I have two pieces on my JSF page that can't stand each other.
Only one of these works fine.

A checkbox that switches <h:inputText /> visibility on/off:

 <h:selectBooleanCheckbox id="testBox" value="#{auditWizard.visible}">
  <a4j:support reRender="testPanel" event="onclick"/>
 </h:selectBooleanCheckbox>

 <a4j:outputPanel id="testPanel" >
  <h:inputText id="testInput" value="TEST TEXT" rendered="#{auditWizard.visible}"/>
 </a4j:outputPanel>

A <h:panelGrid /> that recieves its content from a bean class. No children are added on the panelGrid.

<h:panelGrid id="grid" binding="#{auditWizard.headerGrid}" columnClasses="colText,colInput"/>

@Name( "auditWizard" )
@Scope( ScopeType.CONVERSATION )
public class AuditWizardBean implements Serializable {
 
private HtmlPanelGrid headerGrid
 
public HtmlPanelGrid getHeaderGrid() {
 
 if (this.headerGrid == null) {
  this.headerGrid = (HtmlPanelGrid) app.createComponent(HtmlPanelGrid.COMPONENT_TYPE);
  this.headerGrid.setColumns(2);
  this.headerGrid.setCellpadding("5px"); //$NON-NLS-1$
  this.headerGrid.setCellspacing("0"); //$NON-NLS-1$
  this.headerGrid.setRowClasses("formrow"); //$NON-NLS-1$
  this.headerGrid.setId("gridID"); //$NON-NLS-1$
 }
 return this.headerGrid
 
}

The Exception I get, when clicking on the Checkbox:

 
17:23:04,921 ERROR [lifecycle] JSF1054: (Phase ID: RESTORE_VIEW 1, View ID: /user/audits/auditWizard.xhtml) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@cd4407]
17:23:04,937 ERROR [ExceptionFilter] handling uncaught exception
javax.servlet.ServletException: /user/audits/auditForm2.xhtml @37,97 binding="#{auditWizard.headerGrid}": Target Unreachable, identifier 'auditWizard' resolved to null
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:277)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
        at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:42)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
        at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
        at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
        at java.lang.Thread.run(Thread.java:619)
Caused by: javax.el.PropertyNotFoundException: /user/audits/auditForm2.xhtml @37,97 binding="#{auditWizard.headerGrid}": Target Unreachable, identifier 'auditWizard' resolved to null
        at com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:95)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:240)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:195)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:104)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
        ... 34 more
17:23:04,937 ERROR [ExceptionFilter] exception root cause
javax.el.PropertyNotFoundException: /user/audits/auditForm2.xhtml @37,97 binding="#{auditWizard.headerGrid}": Target Unreachable, identifier 'auditWizard' resolved to null
        at com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:95)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:240)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:245)
        at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:195)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
        at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:104)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
        at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.web.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:42)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
        at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
        at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
        at java.lang.Thread.run(Thread.java:619)
 

Can anybody help me?
It must have something to do with the lifecycle and the binding for <h:panelGrid binding="#{...}" />. Without this binding, all is fine...

[Sasha Baker]

Any ideas?

During Restore View Phase, the CONVERSATION scoped bean isn't available.
Event scoped bean isn't an option, because it needs data from
the Conversation bean (a previous selection is stored there).
So I need to bypass this anyway...


http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994781#3994781

This could help, too:
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3993288#3993288
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4094936#4094936
http://markmail.org/message/iiucchglpn5r5fcr

[ November 26, 2008: Message edited by: Sasha Baker ]
[ November 26, 2008: Message edited by: Sasha Baker ]