tarOutStr.putArchiveEntry(archiveEntry);
                fileDetails.copyTo(tarOutStr);
                tarOutStr.closeArchiveEntry();
            } catch (Exception e) {
                throw new GradleException(String.format("Could not add %s to TAR '%s'.", fileDetails, tarFile), e);
            }
        }

            metadataEntry.size = metadataBytes.length
            tar.putArchiveEntry(metadataEntry)
            tar.write(metadataBytes)
            tar.closeArchiveEntry()

            tar.putArchiveEntry(new TarArchiveEntry("tree-destinationDir/"))
            tar.closeArchiveEntry()

            def evilBytes = "evil".bytes
            def evilEntry = new TarArchiveEntry("tree-destinationDir/../evil.txt")

            entry.setSize(input.getLength());
            tarOutput.putArchiveEntry(entry);
            PackerUtils.packEntry(input, tarOutput, buffer);
            tarOutput.closeArchiveEntry();
        }
        tarOutput.close();
    }

    @Override
    public void unpack(DataSource input, DataTargetFactory targetFactory) throws IOException {

                zipOutStr.putArchiveEntry(archiveEntry);
                fileDetails.copyTo(zipOutStr);
                zipOutStr.closeArchiveEntry();
            } catch (Exception e) {
                throw new GradleException(String.format("Could not add %s to ZIP '%s'.", fileDetails, zipFile), e);
            }
        }

        createTarEntry(METADATA_PATH, output.size(), UnixPermissions.FILE_FLAG | UnixPermissions.DEFAULT_FILE_PERM, tarOutput);
        tarOutput.write(output.toByteArray());
        tarOutput.closeArchiveEntry();
    }

    private long pack(CacheableEntity entity, Map<String, ? extends FileSystemSnapshot> snapshots, TarArchiveOutputStream tarOutput) {
        AtomicLong entries = new AtomicLong();

            outputStream.setEncoding("UTF-8");
            outputStream.putArchiveEntry(zipEntry);
            outputStream.write(content);
            outputStream.closeArchiveEntry();
        }

        private void maybeAddParent(String name) throws IOException {
            String dir = dir(name);
            if (dir != null && dirs.add(dir)) {
                maybeAddParent(dir);

                    try (InputStream i = Files.newInputStream(file.toPath())) {
                        IOUtils.copy(i, aos)
                    }
                }
                aos.closeArchiveEntry()
            }
            aos.finish()
        }
        outputFile
    }

    private static void populateFilesList(List<File> fileList, File dir) throws IOException {

            def entry = new ZipArchiveEntry(testFile.name)
            entry.setTime(lmd.getTime())
            zipStream.putArchiveEntry(entry)
            zipStream << bos.toByteArray()
            zipStream.closeArchiveEntry()
            zipStream.finish()
        } finally {
            IoActions.closeQuietly(zipStream)
        }
    }

    protected boolean isJarFile(TestFile testFile) {