| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 96 of 150 | 36% | 10 of 14 | 28% | 11 | 15 | 25 | 40 | 4 | 8 |
| getTotalBytes() | 0% | 0% | 2 | 2 | 6 | 6 | 1 | 1 | ||
| getBytesRead() | 0% | 0% | 2 | 2 | 6 | 6 | 1 | 1 | ||
| ReducingKeyIterator(Collection) | 40% | 50% | 1 | 2 | 6 | 10 | 0 | 1 | ||
| close() | 44% | 25% | 2 | 3 | 3 | 6 | 0 | 1 | ||
| next() | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | ||
| remove() | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | ||
| maybeInit() | 96% | 50% | 2 | 3 | 1 | 7 | 0 | 1 | ||
| hasNext() | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |