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https://issues.apache.org/jira/browse/MYFACES-4590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697893#comment-17697893
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Melloware commented on MYFACES-4590:
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Yep I assigned myself!
> NullPointerException when PrimeFaces FileUpload used in composite component
> ---------------------------------------------------------------------------
>
> Key: MYFACES-4590
> URL: https://issues.apache.org/jira/browse/MYFACES-4590
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 4.0.0, 4.0.1
> Environment: primefaces-test project, jakarta branch
> Reporter: Manuel K
> Assignee: Melloware
> Priority: Major
>
> Using the following composite component, an exception occurs upon rendering
> only on MyFaces but not on Mojarra. Please let me know if this is a
> PrimeFaces bug instead and I'll open an issue there.
> {code:java}
> <?xml version="1.0" encoding="UTF-8"?>
> <ui:component xmlns="http://www.w3.org/1999/xhtml";
> xmlns:cc="http://xmlns.jcp.org/jsf/composite";
> xmlns:ui="http://xmlns.jcp.org/jsf/facelets";
> xmlns:p="http://primefaces.org/ui";
> xmlns:h="http://xmlns.jcp.org/jsf/html";>
> <cc:interface>
> <cc:attribute name="fileUploadListener"
> required="true"
> method-signature="void
> listener(org.primefaces.event.FileUploadEvent)"/>
> <cc:attribute name="update"
> type="java.lang.String"/>
> <cc:attribute name="allowTypes"
> default="/.*/"/>
> <cc:attribute name="accept"/>
> <cc:attribute name="fileLimit"
> default="1"/>
> <cc:attribute name="sizeLimit"/>
> <cc:attribute name="multiple"
> default="false"/>
> </cc:interface>
> <cc:implementation>
> <div id="#{cc.clientId}">
> <p:fileUpload id="fileUpload"
> listener="#{cc.attrs.fileUploadListener}"
> update="#{cc.attrs.update}"
> fileLimit="#{cc.attrs.fileLimit}"
> sizeLimit="#{cc.attrs.sizeLimit}"
> auto="true"
> accept="#{cc.attrs.accept}"
> sequential="true"
> allowTypes="#{cc.attrs.allowTypes}"
> multiple="#{cc.attrs.multiple}"/>
> </div>
> </cc:implementation>
> </ui:component> {code}
> The exception:
> {code:java}
> Caused by: java.lang.NullPointerException: Cannot invoke
> "java.lang.Long.longValue()" because the return value of
> "org.primefaces.component.fileupload.FileUpload.getSizeLimit()" is null
> at org.primefaces.component.fileupload.FileUploadRenderer.encodeScript
> (FileUploadRenderer.java:127)
> at org.primefaces.component.fileupload.FileUploadRenderer.encodeEnd
> (FileUploadRenderer.java:79)
> at jakarta.faces.component.UIComponentBase.encodeEnd
> (UIComponentBase.java:634) {code}
> You can find my reproducer here:
> [https://github.com/mkomko/primefaces-test/tree/file-upload-npe]
> Thank you very much in advance as always :).
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