| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 92 of 566 | 83% | 27 of 75 | 64% | 25 | 51 | 12 | 122 | 5 | 13 |
| init(boolean) | | 90% | | 74% | 6 | 17 | 3 | 43 | 0 | 1 |
| matches(byte[], int) | | 0% | | 0% | 4 | 4 | 1 | 1 | 1 | 1 |
| read() | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| read(byte[], int, int) | | 93% | | 70% | 6 | 13 | 3 | 45 | 0 | 1 |
| GzipCompressorInputStream(GzipCompressorInputStream.Builder) | | 85% | | 50% | 3 | 4 | 0 | 14 | 0 | 1 |
| GzipCompressorInputStream(InputStream, boolean) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| getCompressedCount() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getMetaData() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| readToNull(DataInput) | | 100% | | 100% | 0 | 2 | 0 | 4 | 0 | 1 |
| close() | | 100% | | 75% | 1 | 3 | 0 | 6 | 0 | 1 |
| GzipCompressorInputStream(InputStream) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| builder() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |