| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 9 of 40 | 77% | 1 of 2 | 50% | 3 | 9 | 2 | 9 | 2 | 8 |
| size() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| isEmpty() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| add(PrimaryKey) | | 88% | | 50% | 1 | 2 | 0 | 1 | 0 | 1 |
| PrimaryKeys() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| iterator() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| keys() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| unsharedHeapSize() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |