Re: Nulls in XML

[Dan Fabulich]

Dan Fabulich wrote:

But neither does it seem right to insert "�" when it's illegal XML. 
Notably, Java will cheerfully print � in XML if you tell it to do so, and 
many parsers will figure out what to do with it just fine; the same applies 
to "".

Notably, Java's XML parser does NOT know what to do with "�" or 
"", despite the fact that Java will emit the character if you ask it 
to.

org.xml.sax.SAXParseException: Character reference "&#x0" is an invalid XML 
character.
        at 
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
        at 
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:215)
        at 
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:386)
        at 
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316)
        at 
com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1438)
        at 
com.sun.org.apache.xerces.internal.impl.XMLScanner.scanCharReferenceValue(XMLScanner.java:1304)
        at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanCharReference(XMLDocumentFragmentScannerImpl.java:1259)
        at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1753)
        at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
        at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
        at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
        at 
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
        at 
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
        at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
        at javax.xml.parsers.SAXParser.parse(SAXParser.java:311)

-Dan

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