java.lang.NullPointerException at SelectItemsCollector.java:109

[cassiobastos]

I got this error in version 1.8.1, but also tried on 1.12 and the issue remains.

This is the complete stacktrace:

16:49:33,836 WARN  [br.gov.serpro.sci.jsf.exception.GeneralExceptionHandler] - Exceção não tratada capturada.: java.lang.NullPointerException
at org.omnifaces.util.selectitems.SelectItemsCollector.collectFromParent(SelectItemsCollector.java:109)
at org.omnifaces.util.selectitems.SelectItemsUtils.findValueByStringConversion(SelectItemsUtils.java:50)
at org.omnifaces.converter.SelectItemsConverter.getAsObject(SelectItemsConverter.java:52)
at org.richfaces.renderkit.SelectManyHelper.getConvertedValue(SelectManyHelper.java:345)
at org.richfaces.renderkit.SelectManyRendererBase.getConvertedValue(SelectManyRendererBase.java:108)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1034)
at javax.faces.component.UIInput.validate(UIInput.java:964)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1237)
at javax.faces.component.UIInput.processValidators(UIInput.java:702)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1164)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.omnifaces.filter.CacheControlFilter.doFilter(CacheControlFilter.java:226)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:149)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.omnifaces.filter.FacesExceptionFilter.doFilter(FacesExceptionFilter.java:56)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at br.gov.frameworkdemoiselle.util.ServletFilter.doFilter(ServletFilter.java:66)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at br.gov.serpro.sci.filter.AccessPageFilter.doFilter(AccessPageFilter.java:64)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:115)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512)
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926)
at java.lang.Thread.run(Thread.java:745)

I'm using Primefaces 3.4 e primefaces-extensions 0.6.3.

This happens when I change

<h:commandButton
    id="idVoltar"
    value="#{messages['botao.voltar']}"
    styleClass="btn-back"
    action="#{usuarioEditarMB.voltar}"
    onclick="showWaitModalPanel();"
    immediate="true" />
<p:defaultCommand target="idVoltar" />

to

<p:commandButton.

FYI: I tried this because combination of h:commandButton and p:defaultCommand works fine on FireFox, but Chrome completely ignores the p:defaultCommand...

In this page I have p:selectOneMenu

<p:selectOneMenu
    id="pais"
    value="#{usuarioEditarMB.paisLotacao}"
    converter="paisSelectItemsConverter"
    valueChangeListener="#{usuarioEditarMB.listenerPais}"
    disabled="#{!usuarioEditarMB.habilitarOutrosCampos}"
    var="p">
    <f:selectItem
        itemValue=""
        itemLabel="#{messages['objeto.selecione.label']}" />
    <f:selectItems
        value="#{usuarioEditarMB.paises}"
        var="pais"
        itemValue="#{pais}"
        itemLabel="#{pais.nome}" />
    <a4j:ajax
        event="change"
        render="comboLotacaoConsular"
        oncomplete="setFocus('fUsuEd:lotacao')" />
    <p:column>
        <h:outputLabel
            value="#{p.nome}"
            styleClass="#{p.getEstiloInativo(p.ativo)}" />
    </p:column>
</p:selectOneMenu>

To reproduce the problem, click on the combo, type any letter that matches with some of the content and then hit enter to select the value.

[BalusC]

Error suggests <f:selectItems value="#{usuarioEditarMB.paises}"> returned null. Is it potentially changing on every getter call?