private static PsiField createField(String fieldName,
                                      PsiType type,
                                      PsiExpression initializerExpr,
                                      boolean includeInitializer, final PsiClass parentClass) {
    @NonNls StringBuilder pattern = new StringBuilder();
    pattern.append("private int ");
    pattern.append(fieldName);
    if (includeInitializer) {
      pattern.append("=0");
    }
    pattern.append(";");
    PsiManager psiManager = parentClass.getManager();
    PsiElementFactory factory = JavaPsiFacade.getElementFactory(psiManager.getProject());
    try {
      PsiField field = factory.createFieldFromText(pattern.toString(), null);
      final PsiTypeElement typeElement = factory.createTypeElement(type);
      field.getTypeElement().replace(typeElement);
      field = (PsiField)CodeStyleManager.getInstance(psiManager.getProject()).reformat(field);
      if (includeInitializer) {
        field.getInitializer().replace(initializerExpr);
      }
      return field;
    }
    catch (IncorrectOperationException e) {
      LOG.error(e);
      return null;
    }
  }
private static PsiField createField(String fieldName,
                                      PsiType type,
                                      PsiExpression initializerExpr,
                                      boolean includeInitializer, final PsiClass parentClass)