| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 3 of 89 | 96% | 6 of 14 | 57% | 6 | 17 | 2 | 25 | 0 | 10 |
| append(CharSequence, int, int) | | 81% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |
| write(char[], int, int) | | 96% | | 58% | 5 | 7 | 1 | 6 | 0 | 1 |
| write(String, int, int) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| Internal.StringBuilderWriter(StringBuilder) | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| write(int) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| write(String) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| append(CharSequence) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| append(char) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| flush() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| close() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |