public @Nullable PsiMember findExistingMember(@NotNull PsiClass aClass, @NotNull PropertyMemberType memberType) {
    if (memberType == PropertyMemberType.FIELD) {
      return aClass.findFieldByName(getFieldName(aClass), false);
    }
    else if (memberType == PropertyMemberType.GETTER) {
      try {
        PsiElementFactory psiElementFactory = JavaPsiFacade.getElementFactory(aClass.getProject());
        PsiField field = psiElementFactory.createField(myAttributeName, myType);
        PsiMethod[] templates = GetterSetterPrototypeProvider.generateGetterSetters(field, myMemberType == PropertyMemberType.GETTER);
        for (PsiMethod template : templates) {
          PsiMethod existingMethod = aClass.findMethodBySignature(template, true);
          if (existingMethod != null) return existingMethod;
        }
      }
      catch (IncorrectOperationException e) {
        assert false : e;
      }
    }
    return null;
  }
public @Nullable PsiMember findExistingMember(@NotNull PsiClass aClass, @NotNull PropertyMemberType memberType)