| putSingleElement(String, Object) |  | 0% |  | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| putSingleElementIfAbsent(String, Object) |  | 0% |  | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| removeSingleElement(String) |  | 0% |  | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| CSingleOnlyStorage() |  | 0% | | n/a | 1 | 1 | 2 | 2 | 1 | 1 |
| getSingleElementOrDefault(String, Object) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| streamSingleElements() |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| containsSingleElement(String) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getSingleElement(String) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| clear() |  | 0% | | n/a | 1 | 1 | 2 | 2 | 1 | 1 |
| empty() |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| streamMultiElements() |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| containsMultiElement(String) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| putMultiElement(String, Object) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| removeMultiElement(String, Object) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| getMultiElement(String) |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |
| size() |  | 0% | | n/a | 1 | 1 | 1 | 1 | 1 | 1 |