[jira] [Created] (XERCESJ-1705) Validation against asserts (1.1) is slow and takes up a lot of memory for larger files.

["Gerben Abbink (JIRA)" <xe...@xml.apache.org>]

Gerben Abbink created XERCESJ-1705:
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             Summary: Validation against asserts (1.1) is slow and takes up a lot of memory for larger files.
                 Key: XERCESJ-1705
                 URL: https://issues.apache.org/jira/browse/XERCESJ-1705
             Project: Xerces2-J
          Issue Type: Bug
          Components: XML Schema 1.1 Structures
    Affects Versions: 2.12.0
            Reporter: Gerben Abbink
         Attachments: PROBLEM.xml, PROBLEM.xsd

The validation of xml against asserts in XMLSchema 1.1 is slow and takes up a lot of memory for larger xml files. I have created a simple test xml file with lots of repetition and a corresponding xml schema to show the problem.

It takes 20 sec. to validate the xml against the xml schema. When i remove the asserts in the xml schema it takes just 1 second to validate. Testing was done from the command prompt on a modern Windows machine with 8GByte memory.


To compare, i have also validated the xml file against the xml schema in XMLSpy. With asserts it takes 2 sec., without the asserts 1 sec. (XMLSpy does not uses Xerces.)

 



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