Program: 185063
Project: 185063
Buggy source:
/** 
 * Marshal the content tree rooted at <tt>jaxbElement</tt> into an output stream
 * @param os XML will be added to this stream.
 * @param namespacePrefixMapper namespacePrefixMapper
 * @throws JAXBException If any unexpected problem occurs during the marshalling.
 */
public void marshal(java.io.OutputStream os,Object namespacePrefixMapper) throws JAXBException {
  try {
    Marshaller marshaller=jc.createMarshaller();
    if (Docx4jProperties.getProperty("String_Node_Str",true)) {
      marshaller.setProperty("String_Node_Str",true);
    }
    NamespacePrefixMapperUtils.setProperty(marshaller,namespacePrefixMapper);
    log.debug("String_Node_Str" + this.getClass().getName());
    getContents();
    setMceIgnorable((McIgnorableNamespaceDeclarator)namespacePrefixMapper);
    if (Docx4jProperties.getProperty("String_Node_Str",false)) {
      Document doc=XmlUtils.marshaltoW3CDomDocument(jaxbElement,jc);
      log.debug("String_Node_Str" + XmlUtils.w3CDomNodeToString(doc));
      Init.init();
      Canonicalizer c=Canonicalizer.getInstance(CanonicalizationMethod.EXCLUSIVE);
      byte[] bytes=c.canonicalizeSubtree(doc,this.getMceIgnorable());
      IOUtils.write(bytes,os);
    }
 else {
      marshaller.marshal(jaxbElement,os);
    }
    ((McIgnorableNamespaceDeclarator)namespacePrefixMapper).setMcIgnorable(null);
  }
 catch (  Docx4JException e) {
    log.error(e.getMessage(),e);
    throw new JAXBException(e);
  }
catch (  JAXBException e) {
    log.error(e.getMessage(),e);
    throw e;
  }
catch (  Exception e) {
    log.error(e.getMessage(),e);
    throw new JAXBException(e);
  }
}

Fixed version (ground truth):
/** 
 * Marshal the content tree rooted at <tt>jaxbElement</tt> into an output stream
 * @param os XML will be added to this stream.
 * @param namespacePrefixMapper namespacePrefixMapper
 * @throws JAXBException If any unexpected problem occurs during the marshalling.
 */
public void marshal(java.io.OutputStream os,Object namespacePrefixMapper) throws JAXBException {
  try {
    Marshaller marshaller=jc.createMarshaller();
    if (Docx4jProperties.getProperty("String_Node_Str",true)) {
      marshaller.setProperty("String_Node_Str",true);
    }
    NamespacePrefixMapperUtils.setProperty(marshaller,namespacePrefixMapper);
    log.debug("String_Node_Str" + this.getClass().getName());
    getContents();
    setMceIgnorable((McIgnorableNamespaceDeclarator)namespacePrefixMapper);
    if (Docx4jProperties.getProperty("String_Node_Str",false)) {
      Document doc=XmlUtils.marshaltoW3CDomDocument(jaxbElement,jc);
      NamespacePrefixMapperUtils.declareNamespaces(this.getMceIgnorable(),doc);
      log.warn("String_Node_Str" + XmlUtils.w3CDomNodeToString(doc));
      Init.init();
      Canonicalizer c=Canonicalizer.getInstance(CanonicalizationMethod.EXCLUSIVE);
      log.debug("String_Node_Str" + this.getMceIgnorable());
      byte[] bytes=c.canonicalizeSubtree(doc,this.getMceIgnorable());
      IOUtils.write(bytes,os);
    }
 else {
      marshaller.marshal(jaxbElement,os);
    }
    ((McIgnorableNamespaceDeclarator)namespacePrefixMapper).setMcIgnorable(null);
  }
 catch (  Docx4JException e) {
    log.error(e.getMessage(),e);
    throw new JAXBException(e);
  }
catch (  JAXBException e) {
    log.error(e.getMessage(),e);
    throw e;
  }
catch (  Exception e) {
    log.error(e.getMessage(),e);
    throw new JAXBException(e);
  }
}