| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods | Missed | Classes |
| Total | 2,374 of 3,072 | 22% | 253 of 282 | 10% | 331 | 400 | 584 | 770 | 184 | 249 | 6 | 19 |
| IonParser.java | | 6% | | 1% | 144 | 150 | 254 | 268 | 56 | 61 | 1 | 2 |
| IonFactory.java | | 24% | | 22% | 43 | 54 | 82 | 111 | 35 | 45 | 0 | 1 |
| IonObjectMapper.java | | 15% | | 0% | 42 | 46 | 76 | 90 | 34 | 38 | 0 | 2 |
| IonFactoryBuilder.java | | 11% | | 7% | 21 | 27 | 38 | 49 | 14 | 20 | 0 | 1 |
| IonGenerator.java | | 57% | | 37% | 45 | 76 | 76 | 171 | 27 | 56 | 0 | 2 |
| IonWriteContext.java | | 48% | | 27% | 11 | 16 | 10 | 23 | 2 | 7 | 0 | 1 |
| IonTimestampDeserializers.java | | 11% | | 0% | 7 | 9 | 11 | 13 | 3 | 5 | 1 | 3 |
| EnumAsIonSymbolSerializer.java | | 0% | | 0% | 6 | 6 | 13 | 13 | 4 | 4 | 1 | 1 |
| IonTimestampSerializers.java | | 33% | | 25% | 4 | 7 | 10 | 17 | 2 | 5 | 1 | 3 |
| IonSymbolSerializer.java | | 0% | | 0% | 5 | 5 | 9 | 9 | 4 | 4 | 1 | 1 |
| EnumAsIonSymbolModule.java | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | 1 | 1 | |
| PackageVersion.java | 54% | n/a | 2 | 3 | 2 | 3 | 2 | 3 | 0 | 1 |