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  1. UIMA
  2. UIMA-1817

xml namespace handling in XmiCasDocSerializer / NPE with Saxon in classpath

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.3
    • Fix Version/s: 2.3.1SDK
    • Component/s: Core Java Framework
    • Labels:
      None
    • Environment:

      Java 1.6.0_20, Saxon9 jars on the classpath

      Description

      While experimenting with UIMA I observed a problem similar to the one already posted here: http://tinyurl.com/32spzv9. Since removing Saxon from the classpath was not an option, I found the problem to be the way namespaces are handled in org.apache.uima.cas.impl.XmiCasSerializer$XmiCasDocSerializer.

      First of all, the addAttribute/3 method was incorrectly passing null as uri and localName parameters. According to the javadoc, these must at least be empty strings. I added a hack to extract the localName from the qName, if available.

      Second, the method computeNamespaceDeclarationAttrs/1 only added namespaces as attributes, which are not honored by Saxon. I think this is correct, as the SAX2 standard states that namespaces must be declared via startPrefixMapping/2, so I added that, as well.

      Attached you find a patch with changes which work for me (and seem to solve the problem).

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            • Assignee:
              alally Adam Lally
              Reporter:
              the.shapht Martin Schaffoener
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              • Created:
                Updated:
                Resolved: