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Bug #5167
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Saxon/.NET 10: DocumentBuilder.DtdValidation option has no effect if JAXP parser is used
Start date:
2021-11-17
Due date:
% Done:
0%
Estimated time:
Legacy ID:
Applies to branch:
10
Fix Committed on Branch:
Fixed in Maintenance Release:
Platforms:
.NET
Description
Using the Saxon.Api.DocumentBuilder, the option DocumentBuilder.DtdValidation has no effect if JAXP parser is used - the document is parsed without validation.
Updated by Michael Kay 7 months ago
The problem is actually in the Java code of ParseOptions.merge(). This code attempts to combine two sets of parser options (for example those set in the configuration file and those set on the document builder) by taking non-default values in preference to default values. However, for the ParserFeatures field, we're simply taking the union of the two sets of ParserFeatures, which in this case includes both http://xml.org/sax/features/validation=false and http://xml.org/sax/features/validation=true so the result is arbitrary.
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