try {
      escaper.escape((String) null);
      Assert.fail("exception not thrown when escaping a null string");
    } catch (NullPointerException e) {
      // pass
    }
  }

  /**
   * Asserts that an escaper escapes the given character into the expected string.
   *
   * @param escaper the non-null escaper to test
   * @param expected the expected output string
   * @param c the character to escape
   */

    ListMultimap<String, Integer> unusedA =
        MultimapBuilder.hashKeys().arrayListValues().<String, Integer>build();
    SortedSetMultimap<String, Integer> unusedB =
        rawtypeToWildcard(MultimapBuilder.linkedHashKeys().treeSetValues())
            .<String, Integer>build();
    SetMultimap<String, Integer> unusedC =
        MultimapBuilder.treeKeys(String.CASE_INSENSITIVE_ORDER)
            .hashSetValues()
            .<String, Integer>build();

/**
 * Authentication
 */
public class Authentication {

    private String privateKey;

    private String passphrase;

    public Authentication(String userName, String password) {
        this.username = userName;
        this.password = password;
    }

    /**
     * Username used to log in to the host
     */
    private String username;

    /**
     * Password associated with the login
     */

     */
    @Override
    public String getTransformerName() {
        return transformerName;
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * org.codelibs.fess.crawler.entity.AccessResultData#setTransformerName(java.lang
     * .String)
     */
    @Override
    public void setTransformerName(final String transformerName) {
        this.transformerName = transformerName;
    }

    }

    /**
     */
    public static class MyBean {
        /**
         * @return String
         */
        public String foo() {
            return "hoge";
        }

        /**
         * @param arg
         * @return String
         */
        public static String bar(final String arg) {
            return arg;
        }
    }

            }

            @Override
            public List<String> convert(String text, final String field, String... langs) throws IOException {
                return null;
            }
        };

        final Normalizer normalizer = (text, field, lang) -> null;

        final Suggester suggester = Suggester.builder()
                .settings(SuggestSettings.builder().setSettingsIndexName(settingsIndexName))

    private PlexusContainer container;

    @Override
    public ArtifactRepositoryLayout getLayout(String layoutId) throws UnknownRepositoryLayoutException {
        return factory.getLayout(layoutId);
    }

    @Override
    public ArtifactRepository createDeploymentArtifactRepository(
            String id, String url, String layoutId, boolean uniqueVersion) throws UnknownRepositoryLayoutException {

     */
    @Override
    public InetAddress[] resolve(final String host) throws UnknownHostException {
        return InetAddress.getAllByName(toAscii(host));
    }

    /**
     * Decodes the given host string using the specified encoding.
     *
     * @param host the host string to decode
     * @return the decoded host string
     */
    protected String decode(final String host) {
        if (host.indexOf('%') == -1) {

        return getInetAddress();
    }

    /**
     * Returns this IP adress as a {@link java.lang.String} in the form "%d.%d.%d.%d".
     *
     * @return string representation of the IP address
     */

    @Override
    public String getHostAddress() {
        return (this.address >>> 24 & 0xFF) + "." + (this.address >>> 16 & 0xFF) + "." + (this.address >>> 8 & 0xFF) + "."

    private static final String S2C_SIGN_CONSTANT = "session key to server-to-client signing key magic constant";
    private static final String S2C_SEAL_CONSTANT = "session key to server-to-client sealing key magic constant";

    private static final String C2S_SIGN_CONSTANT = "session key to client-to-server signing key magic constant";