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Asked: 2026-06-05T18:43:49+00:00

I’ve used Primefaces multiple times. It’s excellent. But this time I don’t know why:

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I’ve used Primefaces multiple times. It’s excellent. But this time I don’t know why:

I cannot add a growl component, error is: org.primefaces.component.growl.Growl cannot be cast to org.primefaces.component.api.AutoUpdatable

The same for p:messages

It’s possibly due to some errors in my facelet. But I compare this to a successful facelet that I wrote before, and I cannot figure out what’s the problem. The facelet is question is (delete p:growl and all go well):

<body>

    <ui:composition template="./../../WEB-INF/master.xhtml">

        <ui:define name="top">
            <h:outputText value="#{bundle.ListAccountHolderTitle}"></h:outputText>
        </ui:define>

        <ui:define name="content">
            <h:form>
                <p:growl id="growl"/>
                <p:dataTable value="#{accountHolderBean.items}" var="holder">
                    <p:column headerText="Type">#{holder.name}</p:column>
                </p:dataTable>
                <h:panelGrid columns="2">
                    Type
                    <h:inputText id="type1" required="true" value="#{accountHolderBean.selected.type}"/>
                    Name
                    <h:inputText id="name1" value="#{accountHolderBean.selected.name}"/>
                    Field
                    <h:inputText id="field1" accesskey="f" value="#{accountHolderBean.field}"/>
                    Value
                    <h:inputText id="val" accesskey="v" value="#{accountHolderBean.val}"/>
                    All attributes
                    <h:outputText id="attrs" value="#{accountHolderBean.allAttributes}"/>
                </h:panelGrid>
                <p:commandLink update="attrs" actionListener="#{accountHolderBean.update}">Update</p:commandLink>
            </h:form>
        </ui:define>

    </ui:composition>

</body>

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1 Answer

  1. Editorial Team
    org.primefaces.component.growl.Growl cannot be cast to org.primefaces.component.api.AutoUpdatable

    This suggests that you’ve both PrimeFaces 2.x and 3.x libraries in your webapp’s runtime classpath. The AutoUpdatable was introduced in PrimeFaces 3.0 while the Growl already exist before in 2.x, but it didn’t implement AutoUpdatable until PrimeFaces 3.0.

    Cleanup your classpath and get rid of the offending old PrimeFaces 2.x library.

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