| Name | Type | Parent | Detail |
| CardinalityException | Class | IllegalArgumentException | Detail |
| DescriptorException | Class | Exception | Detail |
| IndexException | Class | IllegalArgumentException | Detail |
| TasteException | Class | Exception | Detail |
| NoSuchItemException | Class | TasteException | Detail |
| NoSuchUserException | Class | TasteException | Detail |
