| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 106 of 106 | 0% | 14 of 14 | 0% | 18 | 18 | 29 | 29 | 11 | 11 |
| createOutputStream(OutputStream, Compressor) | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| createCompressor() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| createInputStream(InputStream, Decompressor) | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| createDecompressor() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| createDirectDecompressor() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| getCompressorType() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| getDecompressorType() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| createOutputStream(OutputStream) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| createInputStream(InputStream) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| GzipCodec() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getDefaultExtension() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |