Program: 23298
Project: 23298
Buggy source:
private void parseExtensionElement(Sheet sheet,int row,StructureDefinition sd,ElementDefinition exe,boolean nested) throws Exception {
  String[] card=sheet.getColumn(row,"String_Node_Str").split("String_Node_Str");
  if (card.length != 2 || !Utilities.isInteger(card[0]) || (!"String_Node_Str".equals(card[1]) && !Utilities.isInteger(card[1])))   throw new Exception("String_Node_Str" + sheet.getColumn(row,"String_Node_Str") + "String_Node_Str"+ getLocation(row));
  exe.setMin(Integer.parseInt(card[0]));
  exe.setMax("String_Node_Str".equals(card[1]) ? "String_Node_Str" : card[1]);
  String s=sheet.getColumn(row,"String_Node_Str");
  if (!Utilities.noString(s))   exe.addCondition(s);
  exe.setDefinition(Utilities.appendPeriod(processDefinition(sheet.getColumn(row,"String_Node_Str"))));
  exe.setRequirements(Utilities.appendPeriod(sheet.getColumn(row,"String_Node_Str")));
  exe.setComment(Utilities.appendPeriod(sheet.getColumn(row,"String_Node_Str")));
  doAliases(sheet,row,exe);
  for (  String n : mappings.keySet()) {
    MappingSpace m=mappings.get(n);
    String sm=sheet.getColumn(row,mappings.get(n).getColumnName());
    if (!Utilities.noString(sm)) {
      ElementDefinitionMappingComponent map=exe.addMapping();
      map.setIdentity(m.getId());
      map.setMap(sm);
    }
  }
  exe.setShort(sheet.getColumn(row,"String_Node_Str"));
  exe.setIsModifier(parseBoolean(sheet.getColumn(row,"String_Node_Str"),row,false));
  if (nested && exe.getIsModifier())   throw new Exception("String_Node_Str" + getLocation(row));
  exe.getType().add(new TypeRefComponent().setCode("String_Node_Str"));
  if (!Utilities.noString(sheet.getColumn(row,"String_Node_Str"))) {
    ElementDefinition exv=new ElementDefinition();
    exv.setPath(exe.getPath() + "String_Node_Str");
    sd.getDifferential().getElement().add(exv);
    String bindingName=sheet.getColumn(row,"String_Node_Str");
    if (!Utilities.noString(bindingName)) {
      ElementDefinitionBindingComponent binding=bindings.get(bindingName);
      if (binding == null && !bindingName.startsWith("String_Node_Str"))       throw new Exception("String_Node_Str" + bindingName + "String_Node_Str");
      exv.setBinding(binding);
    }
    s=sheet.getColumn(row,"String_Node_Str");
    if (!Utilities.noString(s))     exv.setMaxLength(Integer.parseInt(s));
    TypeParser tp=new TypeParser();
    List<TypeRef> types=tp.parse(sheet.getColumn(row,"String_Node_Str"),true,metadata("String_Node_Str"),context,false);
    exv.getType().addAll(tp.convert(context,exv.getPath(),types,false,exv));
    if (!Utilities.noString(sheet.getColumn(row,"String_Node_Str")))     exv.addExample().setLabel("String_Node_Str").setValue(processValue(sheet,row,"String_Node_Str",sheet.getColumn(row,"String_Node_Str"),exv));
  }
}

Fixed version (ground truth):
private void parseExtensionElement(Sheet sheet,int row,StructureDefinition sd,ElementDefinition exe,boolean nested) throws Exception {
  String[] card=sheet.getColumn(row,"String_Node_Str").split("String_Node_Str");
  if (card.length != 2 || !Utilities.isInteger(card[0]) || (!"String_Node_Str".equals(card[1]) && !Utilities.isInteger(card[1])))   throw new Exception("String_Node_Str" + sheet.getColumn(row,"String_Node_Str") + "String_Node_Str"+ getLocation(row));
  exe.setMin(Integer.parseInt(card[0]));
  exe.setMax("String_Node_Str".equals(card[1]) ? "String_Node_Str" : card[1]);
  String s=sheet.getColumn(row,"String_Node_Str");
  if (!Utilities.noString(s))   exe.addCondition(s);
  exe.setDefinition(Utilities.appendPeriod(processDefinition(sheet.getColumn(row,"String_Node_Str"))));
  exe.setRequirements(Utilities.appendPeriod(sheet.getColumn(row,"String_Node_Str")));
  exe.setComment(Utilities.appendPeriod(sheet.getColumn(row,"String_Node_Str")));
  doAliases(sheet,row,exe);
  for (  String n : mappings.keySet()) {
    MappingSpace m=mappings.get(n);
    String sm=sheet.getColumn(row,mappings.get(n).getColumnName());
    if (!Utilities.noString(sm)) {
      ElementDefinitionMappingComponent map=exe.addMapping();
      map.setIdentity(m.getId());
      map.setMap(sm);
    }
  }
  exe.setShort(sheet.getColumn(row,"String_Node_Str"));
  exe.setIsModifier(parseBoolean(sheet.getColumn(row,"String_Node_Str"),row,false));
  if (nested && exe.getIsModifier())   throw new Exception("String_Node_Str" + getLocation(row));
  exe.getType().add(new TypeRefComponent().setCode("String_Node_Str"));
  if (!Utilities.noString(sheet.getColumn(row,"String_Node_Str"))) {
    ElementDefinition exv=new ElementDefinition();
    TypeParser tp=new TypeParser();
    List<TypeRef> types=tp.parse(sheet.getColumn(row,"String_Node_Str"),true,metadata("String_Node_Str"),context,false);
    exv.getType().addAll(tp.convert(context,exv.getPath(),types,false,exv));
    if (exv.getType().size() > 1) {
      exv.setPath(exe.getPath() + "String_Node_Str");
      for (      TypeRefComponent t : exv.getType()) {
        if (!t.getCode().equals("String_Node_Str")) {
          exv.setPath(exe.getPath() + "String_Node_Str");
          break;
        }
      }
    }
 else {
      TypeRefComponent type=exv.getType().get(0);
      String name=type.getCode();
      exv.setPath(exe.getPath() + "String_Node_Str" + name.substring(0,1).toUpperCase()+ name.substring(1));
    }
    sd.getDifferential().getElement().add(exv);
    String bindingName=sheet.getColumn(row,"String_Node_Str");
    if (!Utilities.noString(bindingName)) {
      ElementDefinitionBindingComponent binding=bindings.get(bindingName);
      if (binding == null && !bindingName.startsWith("String_Node_Str"))       throw new Exception("String_Node_Str" + bindingName + "String_Node_Str");
      exv.setBinding(binding);
    }
    s=sheet.getColumn(row,"String_Node_Str");
    if (!Utilities.noString(s))     exv.setMaxLength(Integer.parseInt(s));
    if (!Utilities.noString(sheet.getColumn(row,"String_Node_Str")))     exv.addExample().setLabel("String_Node_Str").setValue(processValue(sheet,row,"String_Node_Str",sheet.getColumn(row,"String_Node_Str"),exv));
  }
}