| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 397 of 397 | 0% | 46 of 46 | 0% | 33 | 33 | 91 | 91 | 10 | 10 |
| next() | | 0% | | 0% | 6 | 6 | 28 | 28 | 1 | 1 |
| mark() | | 0% | | 0% | 6 | 6 | 17 | 17 | 1 | 1 |
| writeFirstKeyValueBytes(DataOutputStream) | | 0% | | 0% | 4 | 4 | 12 | 12 | 1 | 1 |
| hasNext() | | 0% | | 0% | 5 | 5 | 7 | 7 | 1 | 1 |
| reset() | | 0% | | 0% | 3 | 3 | 9 | 9 | 1 | 1 |
| clearMark() | | 0% | | 0% | 3 | 3 | 8 | 8 | 1 | 1 |
| resetBackupStore() | | 0% | | 0% | 2 | 2 | 6 | 6 | 1 | 1 |
| ReduceContextImpl.ValueIterator(ReduceContextImpl) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| static {...} | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| remove() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |