| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 13 of 73 | 82% | 4 of 10 | 60% | 3 | 8 | 3 | 20 | 0 | 3 |
| writeBool(boolean) | | 78% | | 50% | 2 | 4 | 1 | 10 | 0 | 1 |
| writeString(String) | | 86% | | 75% | 1 | 3 | 2 | 8 | 0 | 1 |
| JSONWriterUTF16JDK9UF(JSONWriter.Context) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |