private void registerAnnotation(@NotNull PsiModifierListOwner declaration, boolean isNullable) {
    final SmartPsiElementPointer<PsiModifierListOwner> declarationPointer = myPointerManager.createSmartPsiElementPointer(declaration);
    if (isNullable) {
      myNullableSet.add(declarationPointer);
    }
    else {
      myNotNullSet.add(declarationPointer);
    }
    numAnnotationsAdded++;
  }
private void registerAnnotation(@NotNull PsiModifierListOwner declaration, boolean isNullable)