| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 39 of 85 | 54% | 4 of 8 | 50% | 4 | 8 | 8 | 19 | 1 | 4 |
| add(KeyFactoryCustomizer) | | 53% | | 50% | 2 | 4 | 4 | 8 | 0 | 1 |
| singleton(Customizer) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| get(Class) | | 83% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| CustomizerRegistry(Class[]) | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 |