Bug #5096: .NET: FactoryConfigurationError: Provider org.apache.xerces.jaxp.SAXParserFactoryImpl not found - Saxon - Saxonica Developer Community

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Bug #5096

closed

.NET: FactoryConfigurationError: Provider org.apache.xerces.jaxp.SAXParserFactoryImpl not found

Added by T Hata over 2 years ago. Updated about 1 year ago.

Status:

Closed

Priority:

Low

Assignee:

Michael Kay

Category:

.NET API

Sprint/Milestone:

Start date:

2021-09-17

Due date:

% Done:

100%

Estimated time:

Legacy ID:

Applies to branch:

Fix Committed on Branch:

Fixed in Maintenance Release:

10.9

Platforms:

.NET

Description

I'm upgrading Saxon .NET 9.9.1.8 to 10.6. Now, setting the catalog file throws an exception.

Unhandled Exception: javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.jaxp.SAXParserFactoryImpl, saxon-ee-10.6, Version=10.6, Culture=neutral, PublicKeyToken=e1fdd002d5083fe6 not found

Sample code:

System.Uri catalog = new System.Uri( @"c:\test\catalog.xml" );
Saxon.Api.Processor processor = new Saxon.Api.Processor();
processor.SchemaManager.Catalog = catalog.ToString();

Related issues

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Updated by Michael Kay over 2 years ago

This looks like a recurrence of bug #2305, though the dynamic loading failure might be for different reasons.

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Updated by Michael Kay about 2 years ago

I suspect the problem might be the change from four-part to two-part version numbers. For the dynamic loading, we need to give the version number of the DLL as .NET understands it, which is probably 10.6.0.1 or similar, rather than 10.6. In DotNetPlatform.setDefaultSAXParserFactory we're picking up the version number using Version.getProductVersion(), which gives us the two-part version number.

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Updated by Michael Kay about 2 years ago

Related to Bug #5306: Saxon 11.1 breaks my code (SAXParserFactory.newInstance() problem is back) added

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Updated by Michael Kay over 1 year ago

I'm not able to reproduce the problem, which makes it difficult to test a fix.

However, the code introduced by bug #2305 is still present in DotNetPlatform line 496:

System.setProperty("javax.xml.parsers.SAXParserFactory", "org.apache.xerces.jaxp.SAXParserFactoryImpl, saxon-"+editionCode+"-"+ Version.getProductVersion() +", Version="+ Version.getProductVersion()+", Culture=neutral, PublicKeyToken=e1fdd002d5083fe6");

and this produces the string "Version=10.8" (on the current build), whereas the actual assembly version is 10.8.0.0.

I'm therefore going to take a punt on this and append ".0.0" to the version number in this line of code, and hope that the problem goes away.

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