| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods | Missed | Classes |
| Total | 798 of 1,632 | 51% | 76 of 149 | 48% | 98 | 157 | 160 | 356 | 53 | 75 | 1 | 7 |
| GzipCompressorOutputStream | | 0% | | 0% | 26 | 26 | 70 | 70 | 11 | 11 | 1 | 1 |
| ExtraField | | 37% | | 35% | 17 | 23 | 38 | 61 | 10 | 13 | 0 | 1 |
| GzipParameters | | 30% | | 35% | 25 | 34 | 33 | 55 | 19 | 27 | 0 | 1 |
| GzipCompressorInputStream | | 84% | | 65% | 21 | 45 | 10 | 106 | 4 | 10 | 0 | 1 |
| GzipUtils | | 73% | n/a | 6 | 7 | 6 | 20 | 6 | 7 | 0 | 1 | |
| ExtraField.SubField | | 34% | n/a | 2 | 3 | 2 | 7 | 2 | 3 | 0 | 1 | |
| GzipParameters.OS | | 98% | | 100% | 1 | 19 | 1 | 37 | 1 | 4 | 0 | 1 |