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https://issues.apache.org/jira/browse/XERCESJ-1635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Glavassevich updated XERCESJ-1635:
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Fix Version/s: (was: 2.11.0)
> Report warning when we have undeclared entity reference in XML content
> ----------------------------------------------------------------------
>
> Key: XERCESJ-1635
> URL: https://issues.apache.org/jira/browse/XERCESJ-1635
> Project: Xerces2-J
> Issue Type: Bug
> Components: DTD
> Affects Versions: 2.11.0
> Reporter: Radu Coravu
> Original Estimate: 3h
> Remaining Estimate: 3h
>
> Let's say we have an XML document like this:
> {code}<!DOCTYPE article [
> <!ENTITY % isolat1 SYSTEM "abc.ent">
> %isolat1;
> <!ENTITY t "test" >
> ]>
> <article xmlns="http://docbook.org/ns/docbook";
> xmlns:xlink="http://www.w3.org/1999/xlink"; version="5.0">
> <info>
> <title>Article Tem&abc;plate Title</title>
> .......{code}
> and the referenced "abc.ent" file is an empty entity file.
> if this file is parsed by Xerces with validation turned off, the reference to
> the non existing entity &abc; will not be reported at all.
> Usually when you apply over the XML an XSLT stylesheet the validation is
> turned off so in my opinion even with validation turned off at least a
> warning should be issued in the case in which an undeclared entity is present
> in the XML content because this means that the XML content is incomplete.
> The extra warning could be reported in:
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEntityReference()
> and:
> org.apache.xerces.impl.XML11NSDocumentScannerImpl.scanEntityReference()
> In that code the decision is something like:
> {code} if (fValidation)
> fErrorReporter.reportError(
> XMLMessageFormatter.XML_DOMAIN,"EntityNotDeclared",
> new Object[]{name},
> XMLErrorReporter.SEVERITY_ERROR);
> {code}
> and in my opinion it should also have an "else" branch on which to report the
> problem at least as a warning.
> http://www.w3.org/TR/REC-xml/#include-if-valid
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