| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods | Missed | Classes |
| Total | 1,216 of 2,135 | 43% | 132 of 207 | 36% | 140 | 207 | 223 | 442 | 66 | 96 | 1 | 8 |
| GzipCompressorOutputStream.java | | 0% | | 0% | 28 | 28 | 88 | 88 | 11 | 11 | 1 | 1 |
| ExtraField.java | | 27% | | 16% | 34 | 41 | 62 | 89 | 16 | 20 | 0 | 2 |
| GzipParameters.java | | 41% | | 36% | 43 | 75 | 47 | 114 | 23 | 39 | 0 | 2 |
| GzipCompressorInputStream.java | | 80% | | 64% | 29 | 56 | 20 | 130 | 10 | 19 | 0 | 2 |
| GzipUtils.java | | 73% | n/a | 6 | 7 | 6 | 21 | 6 | 7 | 0 | 1 |