An Error Occurred:

javax.faces.el.EvaluationException: Cannot get value for expression '#{viewCategories.rootCategories}'

Caused by:
java.lang.NullPointerException - Bean: cz.amg.web.ViewCategories, property: rootCategories

+ Stack Trace

javax.faces.FacesException: javax.faces.el.EvaluationException: Cannot get value for expression '#{viewCategories.rootCategories}'
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:432)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:255)
	at cz.amg.common.AMGViewHandler.renderView(AMGViewHandler.java:59)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:146)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:147)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:349)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
	at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
	at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:406)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
	at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1824)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:636)
Caused by: org.apache.jasper.JasperException: javax.faces.el.EvaluationException: Cannot get value for expression '#{viewCategories.rootCategories}'
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:548)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:471)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:426)
	... 30 more
Caused by: javax.faces.el.EvaluationException: Cannot get value for expression '#{viewCategories.rootCategories}'
	at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:405)
	at javax.faces.component.UIData.getValue(UIData.java:1095)
	at org.apache.myfaces.component.html.ext.HtmlDataTableHack.createDataModel(HtmlDataTableHack.java:486)
	at org.apache.myfaces.component.html.ext.HtmlDataTableHack.getDataModel(HtmlDataTableHack.java:463)
	at org.apache.myfaces.component.html.ext.HtmlDataTableHack.getRowCount(HtmlDataTableHack.java:92)
	at org.apache.myfaces.custom.datalist.HtmlListRenderer.encodeChildren(HtmlListRenderer.java:127)
	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:776)
	at javax.faces.webapp.UIComponentTag.encodeChildren(UIComponentTag.java:663)
	at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:544)
	at org.apache.jsp.formFestival_jsp._jspx_meth_t_005fdataList_005f0(formFestival_jsp.java:1320)
	at org.apache.jsp.formFestival_jsp._jspx_meth_t_005fdocument_005f0(formFestival_jsp.java:459)
	at org.apache.jsp.formFestival_jsp._jspx_meth_f_005fview_005f0(formFestival_jsp.java:224)
	at org.apache.jsp.formFestival_jsp._jspService(formFestival_jsp.java:180)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:433)
	... 40 more
Caused by: javax.faces.el.EvaluationException: Exception getting value of property rootCategories of base of type : cz.amg.web.ViewCategories
	at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:99)
	at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:539)
	at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
	at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:386)
	... 55 more
Caused by: javax.faces.el.EvaluationException: Bean: cz.amg.web.ViewCategories, property: rootCategories
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:463)
	at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:85)
	... 58 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor2525.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:459)
	... 59 more
Caused by: java.lang.NullPointerException
	at cz.amg.web.ViewCategories.initRootCategories(ViewCategories.java:27)
	at cz.amg.web.ViewCategories.getRootCategories(ViewCategories.java:48)
	... 63 more

+ Component Tree

<UIViewRoot locale="cs_CZ" renderKitId="HTML_BASIC" rendered="true" transient="false" viewId="/formFestival.jsp">
<Document id="_idJsp0" rendered="true" transient="false">
<HtmlOutputText escape="true" id="_idJsp1" rendered="true" transient="false" value="#{webRequest.locale}=cs"/>
<HtmlOutputText escape="true" id="_idJsp2" rendered="true" transient="false" value="#{webRequest.locale}=cs"/>
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp3" rendered="#{empty viewCategory.article}=true" transient="false" value="#{viewCategory.category.name}=Festival muzejních nocí"/>
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp4" rendered="#{!empty viewCategory.article}=false" transient="false"/>
<Stylesheet filtered="false" id="_idJsp5" inline="false" media="screen" path="/css/layout.css" rendered="true" transient="false"/>
<Stylesheet filtered="false" id="_idJsp6" inline="false" media="screen" path="/css/default.css" rendered="true" transient="false"/>
<Stylesheet filtered="false" id="_idJsp7" inline="false" media="print" path="/css/print.css" rendered="true" transient="false"/>
<Stylesheet filtered="false" id="_idJsp8" inline="false" media="screen" rendered="#{webRequest.webTree.css != null}=false" transient="false"/>
<Stylesheet filtered="false" id="_idJsp9" inline="false" media="screen" path="#{viewCategory.category.css}=" rendered="#{! empty viewCategory.category.css}=false" transient="false"/>
<HtmlOutputText escape="true" id="_idJsp10" rendered="true" transient="false" value="#{contextPath}="/>
<HtmlOutputText escape="true" id="_idJsp11" rendered="true" transient="false" value="#{viewCategory.category.fullSEOPath}=festival_muzejnich_noci/titulni"/>
<HtmlOutputText converter="javax.faces.convert.DateTimeConverter@75cf9987" escape="false" id="_idJsp12" rendered="true" transient="false" value="#{webRequest.date}=Sat Feb 04 03:46:00 CET 2012"/>
<HtmlTag forceId="false" forceIdIndex="true" id="_idJsp13" rendered="true" transient="false" value="br"/>
<HtmlOutputText converter="javax.faces.convert.DateTimeConverter@1068aa7e" escape="false" id="_idJsp14" rendered="true" transient="false" value="#{webRequest.date}=Sat Feb 04 03:46:00 CET 2012"/>
<HtmlOutputText escape="true" id="_idJsp15" rendered="true" transient="false" value="#{contextPath}="/>
<HtmlOutputText escape="true" id="_idJsp16" rendered="true" transient="false" value="#{contextPath}="/>
<HtmlOutputLink id="_idJsp17" rendered="true" title="Asociace muzeí a galerií ČR" transient="false" value="#{contextPath}/web/amg/titulni=/web/amg/titulni">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp18" rendered="true" transient="false" value="AMG"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp19" rendered="true" title="Dění v oboru" transient="false" value="#{contextPath}/web/deni_v_oboru/titulni=/web/deni_v_oboru/titulni">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp20" rendered="true" transient="false" value="Dění v oboru"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp21" rendered="true" title="Navštivte muzea a galerie - více než 2000 záznamů" transient="false" value="#{contextPath}/adresar/=/adresar/">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp22" rendered="true" transient="false" value="Adresář muzeí a galerií ČR"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp23" rendered="true" title="Gloria Musaealis" transient="false" value="#{contextPath}/web/gloria_musaealis/titulni=/web/gloria_musaealis/titulni">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp24" rendered="true" transient="false" value="Gloria musaealis"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp25" rendered="true" title="Festival muzejních nocí" transient="false" value="#{contextPath}/web/festival_muzejnich_noci/titulni=/web/festival_muzejnich_noci/titulni">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp26" rendered="true" transient="false" value="Festival muzejních nocí"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp27" rendered="true" title="Muzea a 20. století" transient="false" value="#{contextPath}/web/muzea_a_20_stoleti/uvod=/web/muzea_a_20_stoleti/uvod">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp28" rendered="true" transient="false" value="Muzea a 20. století"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp29" rendered="true" title="Muzeum a změna" transient="false" value="#{contextPath}/web/muzea_zmeny/uvod=/web/muzea_zmeny/uvod">
<HtmlOutputText escape="false" forceId="false" forceIdIndex="true" id="_idJsp30" rendered="true" transient="false" value="Muzeum a změna"/>
</HtmlOutputLink>
<HtmlDataList border="-2147483648" first="0" forceId="false" forceIdIndex="true" id="_idJsp31" layout="unorderedList" preserveRowStates="false" rendered="true" rowIndex="-1" rows="0" styleClass="leftmenu" transient="false" var="category">
<HtmlSimpleColumn defaultSorted="false" groupBy="false" id="_idJsp32" rendered="true" sortable="false" transient="false">
<HtmlPanelGroup colspan="-2147483648" displayValueOnly="false" forceId="false" forceIdIndex="true" id="_idJsp33" layout="block" rendered="true" transient="false">
<HtmlOutputLink id="_idJsp34" rendered="#{empty category.url}=true" transient="false" value="#{contextPath}/web/#{category.fullSEOPath}=/web/">
<HtmlOutputText escape="true" forceId="false" forceIdIndex="true" id="_idJsp35" rendered="true" transient="false"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp36" rendered="#{!empty category.url}=false" transient="false">
<HtmlOutputText escape="true" forceId="false" forceIdIndex="true" id="_idJsp37" rendered="true" transient="false"/>
</HtmlOutputLink>
<HtmlDataList border="-2147483648" first="0" forceId="false" forceIdIndex="true" id="_idJsp38" layout="unorderedList" preserveRowStates="false" rendered="#{!empty category.categories}=false" rowIndex="-1" rows="0" styleClass="leftsubmenu" transient="false" var="subCategory">
<HtmlSimpleColumn defaultSorted="false" groupBy="false" id="_idJsp39" rendered="true" sortable="false" transient="false">
<HtmlOutputLink id="_idJsp40" rendered="#{empty subCategory.url}=true" transient="false" value="#{contextPath}/web/#{subCategory.fullSEOPath}=/web/">
<HtmlOutputText escape="true" forceId="false" forceIdIndex="true" id="_idJsp41" rendered="true" transient="false"/>
</HtmlOutputLink>
<HtmlOutputLink id="_idJsp42" rendered="#{!empty subCategory.url}=false" transient="false">
<HtmlOutputText escape="true" forceId="false" forceIdIndex="true" id="_idJsp43" rendered="true" transient="false"/>
</HtmlOutputLink>
</HtmlSimpleColumn>
</HtmlDataList>
</HtmlPanelGroup>
</HtmlSimpleColumn>
</HtmlDataList>
</Document>
</UIViewRoot>

+ Scoped Variables

Request Parameters
NameValue
None
Request Attributes
NameValue
contextPath
msgorg.apache.myfaces.taglib.core.LoadBundleTag$BundleMap@47913e9c
requestPath/formFestival.faces
viewCategoriescz.amg.web.ViewCategories@10a59879
webRequestcz.amg.web.WebRequest@67bd3878
Session Attributes
NameValue
viewCategorycz.amg.web.ViewCategory@37c6837d
webSessioncz.amg.web.WebSession@49e2a026
Application Attributes
NameValue
None
Feb 4, 2012 3:46:00 AM - Generated by MyFaces - for information on disabling or modifying this error-page, see Server error handling