private void generatePsiElements(@NotNull PsiClass psiClass, @NotNull PsiClass existingInnerClass, @NotNull PsiAnnotation psiAnnotation, @NotNull List<? super PsiElement> target) {
    final Collection<PsiMember> psiMembers = filterMembers(psiClass, psiAnnotation);
    if (!psiMembers.isEmpty()) {
      List<PsiField> newFields = FieldNameConstantsHandler.createFields(existingInnerClass, psiMembers);
      target.addAll(newFields);
    }
  }
private void generatePsiElements(@NotNull PsiClass psiClass, @NotNull PsiClass existingInnerClass, @NotNull PsiAnnotation psiAnnotation, @NotNull List<? super PsiElement> target)