| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 103 of 131 | 21% | 4 of 4 | 0% | 11 | 14 | 20 | 29 | 9 | 12 |
| getEnv() | | 0% | | 0% | 2 | 2 | 7 | 7 | 1 | 1 |
| warn(POSIXHandler.WARNING_ID, String, Object[]) | | 0% | | 0% | 2 | 2 | 5 | 5 | 1 | 1 |
| unimplementedError(String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| error(Errno, String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getCurrentWorkingDirectory() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getErrorStream() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getInputStream() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getPID() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getOutputStream() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| JRubyPOSIXHandler(Ruby) | | 94% | n/a | 0 | 1 | 1 | 8 | 0 | 1 | |
| error(Errno, String, String) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isVerbose() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |