| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 116 of 188 | 38% | 17 of 18 | 6% | 12 | 15 | 24 | 38 | 3 | 6 |
| copy(File, File) | | 0% | | 0% | 9 | 9 | 21 | 21 | 1 | 1 |
| get(String) | | 77% | | 50% | 1 | 2 | 1 | 7 | 0 | 1 |
| JavaFileSystem() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getRoot() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| JavaFileSystem(String, MIMEUtil) | | 100% | n/a | 0 | 1 | 0 | 7 | 0 | 1 | |
| JavaFileSystem(String) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |