Program: 160479
Project: 160479
Buggy source:
private void write(IdEObject object) throws SerializerException, IOException {
  if (object instanceof IfcRepresentation) {
    System.out.println();
  }
  EClass eClass=object.eClass();
  if (eClass.getEAnnotation("String_Node_Str") != null) {
    return;
  }
  print(DASH);
  int convertedKey=getExpressId(object);
  if (convertedKey == -1) {
    throw new SerializerException("String_Node_Str" + object.eClass().getName() + "String_Node_Str");
  }
  print(String.valueOf(convertedKey));
  print("String_Node_Str");
  String upperCase=getPackageMetaData().getUpperCase(eClass);
  if (upperCase == null) {
    throw new SerializerException("String_Node_Str" + eClass.getName());
  }
  print(upperCase);
  print(OPEN_PAREN);
  boolean isFirst=true;
  EntityDefinition entityBN=getSchemaDefinition().getEntityBN(object.eClass().getName());
  for (  EStructuralFeature feature : eClass.getEAllStructuralFeatures()) {
    if (feature.getEAnnotation("String_Node_Str") == null && (entityBN != null && (!entityBN.isDerived(feature.getName()) || entityBN.isDerivedOverride(feature.getName())))) {
      EClassifier type=feature.getEType();
      if (type instanceof EEnum) {
        if (!isFirst) {
          print(COMMA);
        }
        writeEnum(object,feature);
        isFirst=false;
      }
 else       if (type instanceof EClass) {
        if (!getPackageMetaData().isInverse(feature)) {
          if (!isFirst) {
            print(COMMA);
          }
          writeEClass(object,feature);
          isFirst=false;
        }
      }
 else       if (type instanceof EDataType) {
        if (!isFirst) {
          print(COMMA);
        }
        writeEDataType(object,entityBN,feature);
        isFirst=false;
      }
    }
  }
  println(PAREN_CLOSE_SEMICOLON);
}

Fixed version (ground truth):
private void write(IdEObject object) throws SerializerException, IOException {
  EClass eClass=object.eClass();
  if (eClass.getEAnnotation("String_Node_Str") != null) {
    return;
  }
  print(DASH);
  int convertedKey=getExpressId(object);
  if (convertedKey == -1) {
    throw new SerializerException("String_Node_Str" + object.eClass().getName() + "String_Node_Str");
  }
  print(String.valueOf(convertedKey));
  print("String_Node_Str");
  String upperCase=getPackageMetaData().getUpperCase(eClass);
  if (upperCase == null) {
    throw new SerializerException("String_Node_Str" + eClass.getName());
  }
  print(upperCase);
  print(OPEN_PAREN);
  boolean isFirst=true;
  EntityDefinition entityBN=getSchemaDefinition().getEntityBN(object.eClass().getName());
  for (  EStructuralFeature feature : eClass.getEAllStructuralFeatures()) {
    if (feature.getEAnnotation("String_Node_Str") == null && (entityBN != null && (!entityBN.isDerived(feature.getName()) || entityBN.isDerivedOverride(feature.getName())))) {
      EClassifier type=feature.getEType();
      if (type instanceof EEnum) {
        if (!isFirst) {
          print(COMMA);
        }
        writeEnum(object,feature);
        isFirst=false;
      }
 else       if (type instanceof EClass) {
        if (!getPackageMetaData().isInverse(feature)) {
          if (!isFirst) {
            print(COMMA);
          }
          writeEClass(object,feature);
          isFirst=false;
        }
      }
 else       if (type instanceof EDataType) {
        if (!isFirst) {
          print(COMMA);
        }
        writeEDataType(object,entityBN,feature);
        isFirst=false;
      }
    }
  }
  println(PAREN_CLOSE_SEMICOLON);
}