| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 33 of 64 | 48% | 8 of 12 | 33% | 8 | 10 | 10 | 20 | 2 | 4 |
| release() | | 0% | | 0% | 2 | 2 | 5 | 5 | 1 | 1 |
| retain() | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| retire(Runnable) | | 92% | | 50% | 1 | 2 | 1 | 6 | 0 | 1 |
| maybeCleanup() | | 100% | | 50% | 3 | 4 | 0 | 5 | 0 | 1 |