| LockableFileWriter |   | 55% | | 64% | 16 | 27 | 33 | 70 | 12 | 20 | 0 | 1 |
| XmlStreamWriter | | 77% | | 66% | 10 | 23 | 10 | 52 | 3 | 11 | 0 | 1 |
| ProxyCollectionWriter | | 72% | | n/a | 0 | 15 | 18 | 76 | 0 | 15 | 0 | 1 |
| WriterOutputStream | | 86% | | 88% | 5 | 24 | 10 | 78 | 3 | 15 | 0 | 1 |
| FileWriterWithEncoding | | 83% | | 87% | 4 | 24 | 8 | 59 | 3 | 20 | 0 | 1 |
| ProxyWriter | | 84% | | n/a | 0 | 14 | 9 | 71 | 0 | 14 | 0 | 1 |
| DeferredFileOutputStream | | 87% | | 77% | 5 | 24 | 8 | 55 | 0 | 13 | 0 | 1 |
| AppendableWriter | | 78% | | 66% | 4 | 13 | 3 | 23 | 2 | 10 | 0 | 1 |
| DemuxOutputStream | | 64% | | 25% | 4 | 7 | 6 | 15 | 2 | 5 | 0 | 1 |
| ThresholdingOutputStream | | 90% | | 100% | 3 | 22 | 6 | 42 | 3 | 17 | 0 | 1 |
| ProxyOutputStream | | 81% | | n/a | 0 | 9 | 6 | 34 | 0 | 9 | 0 | 1 |
| BrokenOutputStream | | 68% | | n/a | 1 | 5 | 2 | 8 | 1 | 5 | 0 | 1 |
| FilterCollectionWriter | | 99% | | 94% | 4 | 49 | 2 | 142 | 0 | 14 | 0 | 1 |
| NullWriter | | 90% | | n/a | 1 | 12 | 1 | 13 | 1 | 12 | 0 | 1 |
| AbstractByteArrayOutputStream | | 100% | | 90% | 3 | 29 | 0 | 99 | 0 | 13 | 0 | 1 |
| UnsynchronizedByteArrayOutputStream | | 100% | | 92% | 1 | 19 | 0 | 27 | 0 | 12 | 0 | 1 |
| ByteArrayOutputStream | | 100% | | 92% | 1 | 19 | 0 | 31 | 0 | 12 | 0 | 1 |
| StringBuilderWriter | | 100% | | 66% | 2 | 15 | 0 | 25 | 0 | 12 | 0 | 1 |
| CountingOutputStream | | 100% | | 100% | 0 | 8 | 0 | 16 | 0 | 6 | 0 | 1 |
| TeeOutputStream | | 100% | | n/a | 0 | 6 | 0 | 18 | 0 | 6 | 0 | 1 |
| ChunkedWriter | | 100% | | 100% | 0 | 5 | 0 | 16 | 0 | 3 | 0 | 1 |
| ChunkedOutputStream | | 100% | | 100% | 0 | 5 | 0 | 16 | 0 | 3 | 0 | 1 |
| QueueOutputStream | | 100% | | n/a | 0 | 4 | 0 | 14 | 0 | 4 | 0 | 1 |
| ClosedWriter | | 100% | | n/a | 0 | 5 | 0 | 5 | 0 | 5 | 0 | 1 |
| ClosedOutputStream | | 100% | | n/a | 0 | 4 | 0 | 4 | 0 | 4 | 0 | 1 |
| TaggedOutputStream | | 100% | | n/a | 0 | 4 | 0 | 7 | 0 | 4 | 0 | 1 |
| TaggedWriter | | 100% | | n/a | 0 | 4 | 0 | 7 | 0 | 4 | 0 | 1 |
| BrokenWriter | | 100% | | n/a | 0 | 5 | 0 | 8 | 0 | 5 | 0 | 1 |
| AppendableOutputStream | | 100% | | n/a | 0 | 3 | 0 | 6 | 0 | 3 | 0 | 1 |
| CloseShieldOutputStream | | 100% | | n/a | 0 | 3 | 0 | 5 | 0 | 3 | 0 | 1 |
| CloseShieldWriter | | 100% | | n/a | 0 | 3 | 0 | 5 | 0 | 3 | 0 | 1 |
| NullOutputStream | | 100% | | n/a | 0 | 5 | 0 | 6 | 0 | 5 | 0 | 1 |
| NullAppendable | | 100% | | n/a | 0 | 4 | 0 | 4 | 0 | 4 | 0 | 1 |
| NullPrintStream | | 100% | | n/a | 0 | 2 | 0 | 3 | 0 | 2 | 0 | 1 |
| TeeWriter | | 100% | | n/a | 0 | 2 | 0 | 4 | 0 | 2 | 0 | 1 |