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https://issues.apache.org/jira/browse/MYFACES-3191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229364#comment-13229364
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Leonardo Uribe commented on MYFACES-3191:
-----------------------------------------
MyFaces org.apache.myfaces.renderkit.ErrorHandler has this line:
if (!facesContext.getExternalContext().isResponseCommitted())
{
facesContext.getExternalContext().responseReset();
}
> Handing exception (in exception handler) from render response phase with
> forward/redirect is inconsistent
> ---------------------------------------------------------------------------------------------------------
>
> Key: MYFACES-3191
> URL: https://issues.apache.org/jira/browse/MYFACES-3191
> Project: MyFaces Core
> Issue Type: Sub-task
> Components: General
> Affects Versions: 2.1.2-SNAPSHOT
> Environment: myfaces trunk
> Reporter: Martin Kočí
>
> View.xhtml snippet:
> <h:commandButton value="Submit">
> <f:setPropertyActionListener value="#{true}"
> target="#{bean.rendered}" />
> <f:ajax render="outputText" />
> </h:commandButton>
> <h:outputText rendered="#{bean.rendered}" id="outputText"
> value="#{bean.value}" />
> Bean.java snippet:
> public Object getValue() {
> throw new NullPointerException();
> }
> Custom exception handler code:
> if (PhaseId.RENDER_RESPONSE.equals(currentPhaseId)) {
> try {
> nav.handleNavigation(facesContext,
> null, "/ErrorPage.xhtml?faces-redirect=true");
> } finally {
> i.remove();
> }
> }
> Modify view and exception handler to achieve following combinations (HTML
> request = comment out f:ajax, forward = remove ?faces-redirect=true)
> 1) HTML request + forward: nothing in log, and malformed output is produced
> (no closing tags for </body> etc.)
> 2) HTML request + redirect: OK , redirect to ErrorPage.xhtml is done
> 3) AJAX request + forward: exception in log, bud no forward to ErrorPage
> performed
> 4) AJAX request + redirect: exception in log, malformed XML produced (<?xml
> and <partial-response 2x in output) , no redirect performed
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