| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 82 of 95 | 13% | 2 of 2 | 0% | 8 | 9 | 23 | 26 | 7 | 8 |
| addExtension(Class, Extension) | | 0% | n/a | 1 | 1 | 7 | 7 | 1 | 1 | |
| removeExtension(Class) | | 0% | | 0% | 2 | 2 | 6 | 6 | 1 | 1 |
| removeExtension(Class, Extension) | | 0% | n/a | 1 | 1 | 4 | 4 | 1 | 1 | |
| getExtension(Class) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| getExtensionByName(String) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| getExtensions() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getImplementationName() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| AbstractExtendable() | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 |