| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 123 of 338 | 63% | 13 of 24 | 45% | 11 | 19 | 27 | 82 | 1 | 7 |
| decode(ByteBuf) | | 67% | | 42% | 6 | 8 | 18 | 47 | 0 | 1 |
| fail() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| extractHeader(ByteBuffer) | | 78% | | 50% | 2 | 3 | 3 | 19 | 0 | 1 |
| decodeFlags(ProtocolVersion, int) | | 32% | | 25% | 2 | 3 | 1 | 4 | 0 | 1 |
| decode(ChannelHandlerContext, ByteBuf, List) | | 100% | | 100% | 0 | 2 | 0 | 5 | 0 | 1 |
| Envelope.Decoder() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |