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Asked: 2026-06-03T01:03:17+00:00

I have <t:datatable> inside which <c:forEach> items inside <c:forEach> have list. (I checked from

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I have <t:datatable> inside which <c:forEach> items inside <c:forEach> have list. (I checked from backend bean).

<t:dataTable id="insuranceListTable" rowIndexVar="row" width="100%"
styleClass="table" cellspacing="0" border="0"
value="#{insuranceBackingBean.allInsurancesByPatientId}"
var="insuranceBean">
<h:column>
<f:facet name="header">
    <f:verbatim>Drug Formulary</f:verbatim>
</f:facet>
<h:panelGroup id="formularyInformation">
    <h:panelGroup rendered="#{!empty insuranceBean.response4CheckDrugFormulary.reactionList[0].warningList}">
        <c:forEach items="${insuranceBean.response4CheckDrugFormulary.reactionList[0].warningList}" var="warning">
            <b><span title="${warning.warningText}"><c:out value=" [${warning.warningCode}] "></c:out></span></b>
        </c:forEach>
    </h:panelGroup>
    &nbsp;&nbsp;
    <a4j:commandLink onclick="setVisibleAlternativeListGrid();" rendered="#{!empty insuranceBean.response4CheckDrugFormulary.reactionList[0].drugAlternativeList.alternativeList}">
        <a href="#" id="alternative">Alternative [<h:outputText value="#{insuranceBean.response4CheckDrugFormulary.reactionList[0].drugAlternativeList.count}"></h:outputText>]</a> &nbsp;
    </a4j:commandLink>
    <a4j:commandLink onclick="setVisibleAlternativeListGrid();" rendered="#{!empty insuranceBean.response4CheckDrugFormulary.reactionList[0].coPayList}">
        &nbsp;<a href="#" id="coPay">Co-Pay</a>
    </a4j:commandLink>
</h:panelGroup> 
</h:column>
</t:dataTable>

Below doesn’t reflect any thing… 🙁

<c:forEach items="${insuranceBean.response4CheckDrugFormulary.reactionList[0].warningList}" var="warning">
        <b><span title="${warning.warningText}"><c:out value=" [${warning.warningCode}] "></c:out></span></b>
    </c:forEach>
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1 Answer

  1. Editorial Team

    JSTL tags runs during view build time wherein the JSF component tree is produced based on the view source code. JSF components runs during view render time wherein HTML output is produced based on the JSF component tree. In other words, JSTL tags and JSF components doesn’t run in sync as you’d expect from the coding.

    In your particular case, at the moment <c:forEach> runs, the ${insuranceBean} will always evaluate to null, because that’s been definied as var of JSF <t:dataTable> component which isn’t running at that moment.

    You need <t:dataList> instead of <c:forEach>.

    <t:dataList value="#{insuranceBean.response4CheckDrugFormulary.reactionList[0].warningList}" var="warning">
    <b><span title="#{warning.warningText}"><h:outputText value=" [#{warning.warningCode}] " /></span></b>
</t:dataList>

    See also:

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