| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods | Missed | Classes |
| Total | 463 of 982 | 52% | 58 of 109 | 46% | 69 | 102 | 106 | 232 | 33 | 47 | 1 | 4 |
| GzipCompressorOutputStream | | 0% | | 0% | 26 | 26 | 74 | 74 | 12 | 12 | 1 | 1 |
| GzipCompressorInputStream | | 84% | | 65% | 23 | 49 | 9 | 105 | 4 | 11 | 0 | 1 |
| GzipParameters | | 39% | | 33% | 14 | 20 | 17 | 33 | 11 | 17 | 0 | 1 |
| GzipUtils | | 73% | n/a | 6 | 7 | 6 | 20 | 6 | 7 | 0 | 1 |