| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 132 of 413 | 68% | 26 of 46 | 43% | 17 | 32 | 28 | 100 | 1 | 9 |
| addTimestamp(StringBuilder, long) | | 37% | | 27% | 9 | 12 | 16 | 30 | 0 | 1 |
| setTimeFormat(String) | | 46% | | 12% | 4 | 5 | 11 | 18 | 0 | 1 |
| getTimeFormat() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| format(LogRecord) | | 100% | | 83% | 1 | 4 | 0 | 25 | 0 | 1 |
| getThreadName(long) | | 100% | | 87% | 1 | 5 | 0 | 15 | 0 | 1 |
| OneLineFormatter() | | 100% | | 50% | 1 | 2 | 0 | 7 | 0 | 1 |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| lambda$setTimeFormat$1(String, DateFormatCache) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| lambda$static$0() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |