[ http://issues.apache.org/jira/browse/XALANJ-1706?page=all ]
Brian Minchau reassigned XALANJ-1706:
-------------------------------------
Assign To: Brian Minchau (was: Xalan Developers Mailing List)
> [PATCH] DocumentFragment returned by extension element causes multiple SAX
> endDocument() events
> -----------------------------------------------------------------------------------------------
>
> Key: XALANJ-1706
> URL: http://issues.apache.org/jira/browse/XALANJ-1706
> Project: XalanJ2
> Type: Bug
> Components: Other
> Versions: Latest Development Code
> Environment: Operating System: All
> Platform: All
> Reporter: Jeremias Maerki
> Assignee: Brian Minchau
> Attachments: BugzillaExtElemSAXendDocumentCheck.zip, endDocumentPatch.diff
>
> At Krysalis Barcode (http://www.krysalis.org/barcode) I have a Xalan
> extension
> which creates barcodes in SVG format [1]. Until recently I've used an
> extension function for that. As I was able to create an extension element for
> SAXON I wanted to do the same for the Xalan-extension. But here's the problem:
> The extension element (like the extension function where it works correctly)
> returns a DocumentFragment containing the generated barcode in SVG format. In
> the case of the extension element the DocumentFragment is processed by a
> TreeWalker which issues start/endDocument() SAX events although it shouldn't
> IMO. This behaviour causes Apache FOP to crash with an NPE because more than
> one endDocument() SAX event is sent to FOP by Xalan.
> I will attach a test case for the bugzilla test directory. Current CVS (HEAD)
> and 2.5.1 fail in this test. I will try to find a bugfix but if someone more
> intimate with the code beats me to it, so much better.
> [1] http://cvs.sourceforge.net/viewcvs.py/krysalis/krysalis-
> barcode/src/java/org/krysalis/barcode/xalan/BarcodeExt.java
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