DO NOT REPLY [Bug 10301] New: - 500 Error doing propfind with null namespace

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=10301

500 Error doing propfind with null namespace

           Summary: 500 Error doing propfind with null namespace
           Product: Slide
           Version: 1.0.16 Stable
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Minor
          Priority: Other
         Component: WebDAV client
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


In 1.0.16 through the nightly build:

Calling the PropFindMethod in the client to find a property defined via 
PropertyName(null, "proptofind") or PropertyName("", "proptofind") results in a 
500 error from the server. The cause appears to be an invalid XML in the 
generated XML. PropfindMethod.generateQuery() produces:

<?xml version=�1.0� encoding=�utf-8� ?>
<D:propfind xmlns:D=�DAV:�>
   <D:prop><ZZ:proptofind/></D:prop>
</D:propfind>

in this case (the "ZZ" prefix is undefined).

Changing 

  if ("DAV:".equals(namespace)) {
    printer.writeElement("D", localname, XMLPrinter.NO_CONTENT);
  } else {
    printer.writeElement("ZZ", namespace,localname , XMLPrinter.NO_CONTENT);
  }

to

  if ("DAV:".equals(namespace)) {
    printer.writeElement("D", localname, XMLPrinter.NO_CONTENT);
  } else {
    if (namespace.length()>0){
      printer.writeElement("ZZ", namespace,localname , XMLPrinter.NO_CONTENT);
    } else {
      printer.writeElement(null, null, localname , XMLPrinter.NO_CONTENT);
    }
  }

in generateQuery() would generate valid XML and fix the bug (assuming that a 
default namespace hasn't been defined, which is currently the case).

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