}

    /**
     * Helper method to verify n-fold expansion.
     */
    private void verifyNfold(String input, int outlen, byte[] expected) {
        byte[] result = PacMac.expandNFold(input.getBytes(), outlen);
        assertArrayEquals(expected, result, String.format("n-fold expansion failed for input '%s'", input));
    }

    /**
     * Test method for

    /**
     * Parses a robots.txt file from the given input stream using UTF-8 encoding.
     * @param stream the input stream to parse
     * @return the parsed RobotsTxt object, or null if disabled
     */
    public RobotsTxt parse(final InputStream stream) {
        return parse(stream, Constants.UTF_8);
    }

    /**
     * Parses a robots.txt file from the given input stream using the specified character encoding.

        calcMethod.setAccessible(true);

        byte[] input = "test data".getBytes();
        byte[] oldHash = new byte[64];

        byte[] newHash = (byte[]) calcMethod.invoke(transport, input, 0, input.length, oldHash);

        assertNotNull(newHash);
        assertEquals(64, newHash.length); // SHA-512 produces 64 bytes

public abstract class JarInputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected JarInputStreamUtil() {
    }

    /**
     * Creates a {@link JarInputStream}.
     *
     * @param is the input stream (must not be {@literal null})
     * @return {@link JarInputStream}
     * @throws IORuntimeException if an {@link IOException} occurs
     * @see JarInputStream#JarInputStream(InputStream)
     */

      Iterator<? extends T>... inputs) {
    for (Iterator<? extends T> input : checkNotNull(inputs)) {
      checkNotNull(input);
    }
    return concat(consumingForArray(inputs));
  }

  /**
   * Divides an iterator into unmodifiable sublists of the given size (the final list may be
   * smaller). For example, partitioning an iterator containing {@code [a, b, c, d, e]} with a

    /* Set up defaults and ensure empty lines are displayed. */
    content: '';
    display: inline-block;
    vertical-align: middle;
}

[data-ty="input"]:before,
[data-ty-prompt]:before {
    margin-right: 0.75em;
    color: var(--color-text-subtle);
}

[data-ty="input"]:before {
    content: '$';
}

[data-ty][data-ty-prompt]:before {
    content: attr(data-ty-prompt);
}

[data-ty-cursor]:after {

<a href="#" url="https://golang.org/change">commit</a>, or
<a href="#" url="https://golang.org/pkg/">pkg</a> id/name:</small>
<form style='margin: 0' id='navform'><nobr><input id="inputbox" size=10 tabindex=1 /><input type="submit" value="go" /></nobr></form>
<small>Also: <a href="#" url="https://build.golang.org">buildbots</a>
<a href="#" url="https://github.com/golang/go">GitHub</a>
</small>
</body>

    List<Integer> list2 = newArrayList(4);

    List<List<Integer>> input = newArrayList(list1, list2);

    Iterable<Integer> result = Iterables.concat(input);
    assertEquals(asList(1, 4), newArrayList(result));

    // Now change the inputs and see result dynamically change as well

    list1.add(2);
    List<Integer> list3 = newArrayList(3);
    input.add(1, list3);

        }
    }

    /**
     * Updates the digest with the specified data.
     *
     * @param input the input buffer containing data to digest
     * @param offset the offset in the buffer where data starts
     * @param len the length of data to digest
     */
    public void update(final byte[] input, final int offset, final int len) {
        if (LogStream.level >= 5) {

    List<Integer> list2 = newArrayList(4);

    List<List<Integer>> input = newArrayList(list1, list2);

    Iterable<Integer> result = Iterables.concat(input);
    assertEquals(asList(1, 4), newArrayList(result));

    // Now change the inputs and see result dynamically change as well

    list1.add(2);
    List<Integer> list3 = newArrayList(3);
    input.add(1, list3);