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Posted to batik-dev@xmlgraphics.apache.org by "Vincent Hennebert (JIRA)" <ji...@apache.org> on 2014/07/28 23:09:39 UTC
[jira] [Resolved] (BATIK-946) Null pointer exception in
XMLAbstractTranscoder
[ https://issues.apache.org/jira/browse/BATIK-946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vincent Hennebert resolved BATIK-946.
-------------------------------------
Resolution: Fixed
Fixed in rev. [1614177|http://svn.apache.org/r1614177].
Thanks for your patch. I've applied a slightly simpler version. The key is set to false by default in the constructor, so IIC the only way to hit this bug is by calling o.a.b.transcoder.TranscoderSupport.setTranscodingHints, passing it an object that doesn't contain the key.
> Null pointer exception in XMLAbstractTranscoder
> -----------------------------------------------
>
> Key: BATIK-946
> URL: https://issues.apache.org/jira/browse/BATIK-946
> Project: Batik
> Issue Type: Bug
> Components: SVG Rasterizer
> Affects Versions: 1.7
> Environment: Operating System: Linux
> Platform: PC
> Reporter: Christopher Heiny
> Assignee: Batik Developer's Mailing list
> Attachments: XMLAbstractTranscoder.java.patch
>
>
> In version 1.7, at line 109 of XMLAbstractTranscoder, the code assumes that a hint has been provided for KEY_XML_PARSER_VALIDATING, casts it to Boolean, and invokes the booleanValue() method. If the user has not provided this hint (quite likely since many of the examples and tutorials on the web omit this hint entirely), a null pointer exception results, causing a mysterious and unexplained crash.
> This bug also exists in the trunk in SVN.
> Recommendation: Either have sensible default for the case when this hint is null, or throw an appropriate exception with a descriptive error message.
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