Program: 21612
Project: 21612
Buggy source:
public Object handleElement(OTXMLElement element,String relativePath,XMLDataObject parent){
  if (isObjectReferenceHandler()) {
    String refid=element.getAttributeValue("String_Node_Str");
    if (refid != null && refid.length() > 0) {
      return new XMLDataObjectRef(refid,element);
    }
  }
  String idStr=element.getAttributeValue("String_Node_Str");
  if (idStr != null && idStr.length() <= 0) {
    idStr=null;
  }
  String localIdStr=element.getAttributeValue("String_Node_Str");
  if (localIdStr != null && localIdStr.length() <= 0) {
    localIdStr=null;
  }
  XMLDataObject obj=null;
  try {
    if (idStr == null && localIdStr == null && relativePath != null) {
      OTID pathId=OTIDFactory.createOTID(relativePath);
      obj=xmlDB.createDataObject(element,pathId);
    }
 else     if (idStr == null && localIdStr != null) {
      OTID id=xmlDB.getOTIDFromLocalID(localIdStr);
      obj=xmlDB.createDataObject(element,id);
    }
 else {
      obj=xmlDB.createDataObject(element,idStr);
      if (idStr != null && obj.getGlobalId() instanceof OTUUID) {
        obj.setPreserveUUID(true);
      }
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
    return null;
  }
  String objRelativePath=relativePath;
  OTID objId=obj.getGlobalId();
  if (idStr != null || localIdStr != null) {
    objRelativePath=objId.toExternalForm();
  }
  OTDataObjectType type=new OTDataObjectType(getClassName());
  obj.setType(type);
  List attributes=element.getAttributes();
  for (Iterator attIter=attributes.iterator(); attIter.hasNext(); ) {
    OTXMLAttribute attrib=(OTXMLAttribute)attIter.next();
    String attribName=attrib.getName();
    if (attribName.equals("String_Node_Str") || attribName.equals("String_Node_Str")) {
      continue;
    }
    if (isObjectReferenceHandler()) {
      System.err.println("String_Node_Str" + TypeService.attributePath(attrib));
      System.err.println("String_Node_Str");
      continue;
    }
    try {
      Object resValue=handleChildResource(element,attribName,attrib.getValue(),objRelativePath,obj,XMLReferenceInfo.ATTRIBUTE,null);
      obj.setResource(attribName,resValue);
      if (xmlDB.isTrackResourceInfo()) {
        XMLReferenceInfo info=obj.getReferenceInfo(attribName);
        if (info == null) {
          info=new XMLReferenceInfo();
          obj.setResourceInfo(attribName,info);
        }
        info.type=XMLReferenceInfo.ATTRIBUTE;
      }
    }
 catch (    HandleElementException e) {
      System.err.println(e.getMessage() + "String_Node_Str" + TypeService.attributePath(attrib));
    }
  }
  List content=element.getContent();
  String previousComment=null;
  for (Iterator childIter=content.iterator(); childIter.hasNext(); ) {
    OTXMLContent childContent=(OTXMLContent)childIter.next();
    if (childContent instanceof OTXMLComment) {
      previousComment=((OTXMLComment)childContent).getText();
    }
    if (!(childContent instanceof OTXMLElement)) {
      continue;
    }
    OTXMLElement child=(OTXMLElement)childContent;
    try {
      Object resValue=handleChildResource(element,child.getName(),child,objRelativePath,obj,XMLReferenceInfo.ELEMENT,previousComment);
      if (resValue == null) {
      }
      String childName=child.getName();
      obj.setResource(child.getName(),resValue);
      if (xmlDB.isTrackResourceInfo()) {
        XMLReferenceInfo info=obj.getReferenceInfo(childName);
        if (info == null) {
          info=new XMLReferenceInfo();
          obj.setResourceInfo(childName,info);
        }
        info.type=XMLReferenceInfo.ELEMENT;
      }
    }
 catch (    HandleElementException e) {
      System.err.println("String_Node_Str" + TypeService.elementPath(child));
      e.printStackTrace();
    }
    previousComment=null;
  }
  return obj;
}

Fixed version (ground truth):
public Object handleElement(OTXMLElement element,String relativePath,XMLDataObject parent){
  if (isObjectReferenceHandler()) {
    String refid=element.getAttributeValue("String_Node_Str");
    if (refid != null && refid.length() > 0) {
      return new XMLDataObjectRef(refid,element);
    }
  }
  String idStr=element.getAttributeValue("String_Node_Str");
  if (idStr != null && idStr.length() <= 0) {
    idStr=null;
  }
  String localIdStr=element.getAttributeValue("String_Node_Str");
  if (localIdStr != null && localIdStr.length() <= 0) {
    localIdStr=null;
  }
  XMLDataObject obj=null;
  try {
    if (idStr == null && localIdStr == null && relativePath != null) {
      OTID pathId=OTIDFactory.createOTID(relativePath);
      obj=xmlDB.createDataObject(element,pathId);
    }
 else     if (idStr == null && localIdStr != null) {
      OTID id=xmlDB.getOTIDFromLocalID(localIdStr);
      obj=xmlDB.createDataObject(element,id);
    }
 else {
      obj=xmlDB.createDataObject(element,idStr);
      if (idStr != null && obj.getGlobalId() instanceof OTUUID) {
        obj.setPreserveUUID(true);
      }
    }
  }
 catch (  Exception e) {
    e.printStackTrace();
    return null;
  }
  String objRelativePath=relativePath;
  OTID objId=obj.getGlobalId();
  if (idStr != null || localIdStr != null) {
    objRelativePath=objId.toExternalForm();
  }
  OTDataObjectType type=new OTDataObjectType(getClassName());
  obj.setType(type);
  List attributes=element.getAttributes();
  for (Iterator attIter=attributes.iterator(); attIter.hasNext(); ) {
    OTXMLAttribute attrib=(OTXMLAttribute)attIter.next();
    String attribName=attrib.getName();
    if (attribName.equals("String_Node_Str") || attribName.equals("String_Node_Str")) {
      continue;
    }
    if (isObjectReferenceHandler()) {
      System.err.println("String_Node_Str" + TypeService.attributePath(attrib));
      System.err.println("String_Node_Str");
      continue;
    }
    if (attribName.equals("String_Node_Str")) {
      obj.setSaveNulls(true);
      String nullResourcesStr=attrib.getValue();
      String[] nullResources=nullResourcesStr.split("String_Node_Str");
      for (int i=0; i < nullResources.length; i++) {
        obj.setResource(nullResources[i],null);
      }
      continue;
    }
    try {
      Object resValue=handleChildResource(element,attribName,attrib.getValue(),objRelativePath,obj,XMLReferenceInfo.ATTRIBUTE,null);
      obj.setResource(attribName,resValue);
      if (xmlDB.isTrackResourceInfo()) {
        XMLReferenceInfo info=obj.getReferenceInfo(attribName);
        if (info == null) {
          info=new XMLReferenceInfo();
          obj.setResourceInfo(attribName,info);
        }
        info.type=XMLReferenceInfo.ATTRIBUTE;
      }
    }
 catch (    HandleElementException e) {
      System.err.println(e.getMessage() + "String_Node_Str" + TypeService.attributePath(attrib));
    }
  }
  List content=element.getContent();
  String previousComment=null;
  for (Iterator childIter=content.iterator(); childIter.hasNext(); ) {
    OTXMLContent childContent=(OTXMLContent)childIter.next();
    if (childContent instanceof OTXMLComment) {
      previousComment=((OTXMLComment)childContent).getText();
    }
    if (!(childContent instanceof OTXMLElement)) {
      continue;
    }
    OTXMLElement child=(OTXMLElement)childContent;
    try {
      Object resValue=handleChildResource(element,child.getName(),child,objRelativePath,obj,XMLReferenceInfo.ELEMENT,previousComment);
      if (resValue == null) {
      }
      String childName=child.getName();
      obj.setResource(child.getName(),resValue);
      if (xmlDB.isTrackResourceInfo()) {
        XMLReferenceInfo info=obj.getReferenceInfo(childName);
        if (info == null) {
          info=new XMLReferenceInfo();
          obj.setResourceInfo(childName,info);
        }
        info.type=XMLReferenceInfo.ELEMENT;
      }
    }
 catch (    HandleElementException e) {
      System.err.println("String_Node_Str" + TypeService.elementPath(child));
      e.printStackTrace();
    }
    previousComment=null;
  }
  return obj;
}