* Gets the full URL of the artifact.
     *
     * @return The full URL of the artifact, never {@code null}.
     */
    String getUrl();

    /**
     * The size of the artifact in bytes.
     *
     * @return The of the artifact in bytes or a negative value if unknown.
     */
    long getContentLength();

    /**
     * Gets the timestamp when the transfer of this artifact was started.
     *

        }
        return retValue.trim();
    }

    /**
     * Decodes the specified (portion of a) URL. <strong>Note:</strong> This decoder assumes that ISO-8859-1 is used to
     * convert URL-encoded bytes to characters.
     *
     * @param url The URL to decode, may be <code>null</code>.
     * @return The decoded URL or <code>null</code> if the input was <code>null</code>.
     */

                // NOTE: There's java.nio.charset.MalformedInputException and sun.io.MalformedInputException
                if (e.getClass().getName().endsWith("MalformedInputException")) {
                    msg = "Some input bytes do not match the file encoding.";
                } else {
                    msg = e.getClass().getSimpleName();
                }
            }
            problems.add(
                    Severity.FATAL,

    public Optional<String> getString(URI relativeSource, Charset charset) {
        requireNonNull(charset, "charset is null");
        Optional<byte[]> data = getBytes(relativeSource);
        return data.map(bytes -> new String(bytes, charset));
    }

    @Override
    public void put(Path source, URI relativeTarget) {
        requireNonNull(source, "source is null");
        requireNonNull(relativeTarget, "relativeTarget is null");

            expectedLength += stringList.get(i).length();
        }

        threadOutputMuxer.close();
        final byte[] bytes = byteArrayOutputStream.toByteArray();
        String result = new String(bytes);
        assertEquals(expectedLength, bytes.length, result);
    }

    class Outputter implements Callable<ProjectSegment> {
        private final ThreadOutputMuxer threadOutputMuxer;

    public Optional<String> getString(URI relativeSource, Charset charset) {
        requireNonNull(charset, "charset is null");
        Optional<byte[]> data = getBytes(relativeSource);
        return data.map(bytes -> new String(bytes, charset));
    }

    @Override
    public void put(Path source, URI relativeTarget) {
        requireNonNull(source, "source is null");
        requireNonNull(relativeTarget, "relativeTarget is null");

                File temp = File.createTempFile("maven-artifact", null);
                temp.deleteOnExit();
                byte[] bytes = sums.get(extension).getBytes(StandardCharsets.UTF_8);
                Files.write(
                        Paths.get(temp.getAbsolutePath()), bytes, StandardOpenOption.APPEND, StandardOpenOption.CREATE);

                temporaryFiles.add(temp);