public static @Nullable PsiReference getFormReference(PsiField field) {
    final PsiClass containingClass = field.getContainingClass();
    if (containingClass != null && containingClass.getQualifiedName() != null) {
      final List<PsiFile> forms = FormClassIndex.findFormsBoundToClass(containingClass.getProject(), containingClass);
      for (PsiFile formFile : forms) {
        final PsiReference[] refs = formFile.getReferences();
        for (final PsiReference ref : refs) {
          if (ref.isReferenceTo(field)) {
            return ref;
          }
        }
      }
    }
    return null;
  }
public static @Nullable PsiReference getFormReference(PsiField field)