Program: 185092
Project: 185092
Buggy source:
public static DocumentFragment xpathDate(WordprocessingMLPackage wmlPackage,JaxbXmlPart sourcePart,Map<String,CustomXmlDataStoragePart> customXmlDataStorageParts,String storeItemId,String xpath,String prefixMappings,String sdtParent,String contentChild,NodeIterator dateNodeIt){
  CustomXmlDataStoragePart part=customXmlDataStorageParts.get(storeItemId.toLowerCase());
  if (part == null) {
    log.error("String_Node_Str" + storeItemId);
    return null;
  }
  try {
    String r=part.getData().xpathGetString(xpath,prefixMappings);
    log.debug(xpath + "String_Node_Str" + r);
    if (r == null)     return nullResultParagraph(sdtParent,"String_Node_Str");
    CTSdtDate sdtDate=null;
    Node dateNode=dateNodeIt.nextNode();
    if (dateNode != null) {
      sdtDate=(CTSdtDate)XmlUtils.unmarshal(dateNode,Context.jc,CTSdtDate.class);
    }
    if (r.indexOf("String_Node_Str") > 0) {
      r=r.substring(0,r.indexOf("String_Node_Str") - 1);
      log.warn("String_Node_Str" + r);
    }
    DateFormat dateTimeFormat=new SimpleDateFormat("String_Node_Str");
    String format=sdtDate.getDateFormat().getVal();
    System.out.println("String_Node_Str" + format);
    if (format.contains("String_Node_Str")) {
      format=format.replace("String_Node_Str","String_Node_Str");
    }
    Format formatter=new SimpleDateFormat(format);
    org.docx4j.wml.ObjectFactory factory=new org.docx4j.wml.ObjectFactory();
    Date date;
    RPr rPr=null;
    try {
      date=(Date)dateTimeFormat.parse(r);
    }
 catch (    ParseException e) {
      log.warn(e.getMessage());
      date=new Date();
      rPr=factory.createRPr();
      Color colorRed=factory.createColor();
      colorRed.setVal("String_Node_Str");
      rPr.setColor(colorRed);
    }
    String result=formatter.format(date);
    org.docx4j.wml.R run=factory.createR();
    if (rPr != null) {
      run.setRPr(rPr);
    }
    org.docx4j.wml.Text text=factory.createText();
    text.setValue(result);
    run.getContent().add(text);
    org.w3c.dom.Document docContainer=XmlUtils.neww3cDomDocument();
    if (sdtParent.equals("String_Node_Str")) {
      docContainer=XmlUtils.marshaltoW3CDomDocument(run);
    }
 else {
      org.docx4j.wml.P p=factory.createP();
      p.getContent().add(run);
      docContainer=XmlUtils.marshaltoW3CDomDocument(p);
    }
    DocumentFragment docfrag=docContainer.createDocumentFragment();
    docfrag.appendChild(docContainer.getDocumentElement());
    return docfrag;
  }
 catch (  Exception e) {
    log.error(e);
    return null;
  }
}

Fixed version (ground truth):
public static DocumentFragment xpathDate(WordprocessingMLPackage wmlPackage,JaxbXmlPart sourcePart,Map<String,CustomXmlDataStoragePart> customXmlDataStorageParts,String storeItemId,String xpath,String prefixMappings,String sdtParent,String contentChild,NodeIterator dateNodeIt){
  CustomXmlDataStoragePart part=customXmlDataStorageParts.get(storeItemId.toLowerCase());
  if (part == null) {
    log.error("String_Node_Str" + storeItemId);
    return null;
  }
  try {
    String r=part.getData().xpathGetString(xpath,prefixMappings);
    log.debug(xpath + "String_Node_Str" + r);
    if (r == null)     return nullResultParagraph(sdtParent,"String_Node_Str");
    CTSdtDate sdtDate=null;
    Node dateNode=dateNodeIt.nextNode();
    if (dateNode != null) {
      sdtDate=(CTSdtDate)XmlUtils.unmarshal(dateNode,Context.jc,CTSdtDate.class);
    }
    if (r.indexOf("String_Node_Str") > 0) {
      r=r.substring(0,r.indexOf("String_Node_Str") - 1);
      log.warn("String_Node_Str" + r);
    }
    DateFormat dateTimeFormat=new SimpleDateFormat("String_Node_Str");
    String format=sdtDate.getDateFormat().getVal();
    System.out.println("String_Node_Str" + format);
    if (format.contains("String_Node_Str")) {
      format=format.replace("String_Node_Str","String_Node_Str");
    }
    Format formatter=new SimpleDateFormat(format);
    org.docx4j.wml.ObjectFactory factory=new org.docx4j.wml.ObjectFactory();
    Date date;
    RPr rPr=null;
    try {
      date=(Date)dateTimeFormat.parse(r);
    }
 catch (    ParseException e) {
      try {
        DateFormat dateFormat=new SimpleDateFormat("String_Node_Str");
        date=(Date)dateFormat.parse(r);
      }
 catch (      ParseException e2) {
        log.warn(e.getMessage());
        date=new Date();
        rPr=factory.createRPr();
        Color colorRed=factory.createColor();
        colorRed.setVal("String_Node_Str");
        rPr.setColor(colorRed);
      }
    }
    String result=formatter.format(date);
    org.docx4j.wml.R run=factory.createR();
    if (rPr != null) {
      run.setRPr(rPr);
    }
    org.docx4j.wml.Text text=factory.createText();
    text.setValue(result);
    run.getContent().add(text);
    org.w3c.dom.Document docContainer=XmlUtils.neww3cDomDocument();
    if (sdtParent.equals("String_Node_Str")) {
      docContainer=XmlUtils.marshaltoW3CDomDocument(run);
    }
 else {
      org.docx4j.wml.P p=factory.createP();
      p.getContent().add(run);
      docContainer=XmlUtils.marshaltoW3CDomDocument(p);
    }
    DocumentFragment docfrag=docContainer.createDocumentFragment();
    docfrag.appendChild(docContainer.getDocumentElement());
    return docfrag;
  }
 catch (  Exception e) {
    log.error(e);
    return null;
  }
}