* in the {@link Iterators} class.
 *
 * <p><b>Java 8+ users:</b> several common uses for this class are now more comprehensively
 * addressed by the new {@link java.util.stream.Stream} library. Read the method documentation below
 * for comparisons. This class is not being deprecated, but we gently encourage you to migrate to
 * streams.
 *

                    nfe.printStackTrace( log );
            }
        }
        return def;
    }

    /** 
     * Retrieve an <code>InetAddress</code>. If the address is not
     * an IP address and cannot be resolved <code>null</code> will
     * be returned.
     */

    public static InetAddress getInetAddress( String key, InetAddress def ) {
        String addr = prp.getProperty( key );

                        + LS
                        + LS + "<configuration>"
                        + LS + "  ..."
                        + LS + "  <toAddresses>"
                        + LS + "    <item>VALUE</item>"
                        + LS + "  </toAddresses>"
                        + LS + "</configuration>."
                        + LS,
                exception.buildDiagnosticMessage());
    }

    @Test

     * 
     * @param tc
     *            context to use
     * @param address
     * @param port
     * @param exclusive
     *            whether to acquire an unshared connection
     * @return a transport connection to the target
     */
    SmbTransport getSmbTransport ( CIFSContext tc, Address address, int port, boolean exclusive );


    /**
     * Get transport connection
     * 

    public static String getSearchEngineHttpAddress() {
        final String value = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        if (value != null) {
            return value;
        }
        return System.getProperty(Constants.FESS_ES_HTTP_ADDRESS);
    }

    /**
     * 
     * {@inheritDoc}
     *
     * @see java.lang.AutoCloseable#close()
     */
    @Override
    public void close ();


    /**
     * @return the connected address
     */
    Address getRemoteAddress ();


    /**
     * @return the connected host name
     */
    String getRemoteHostName ();

   * analysis that that means "plain {@code T}" rather than the inferred type {@code @Nullable T}.
   * (Even if supported added {@code @NonNull}, that would not help, since the problem case
   * addressed by this method is the case in which {@code T} has parametric nullness -- and thus its
   * value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.bouncycastle.util.encoders.Base64;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.UniAddress;

public class CrawlerEngineClient extends FesenClient {
    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));

    static HashMap dfsRoots = null;

    static synchronized SmbTransport getSmbTransport( UniAddress address, int port ) {
        return getSmbTransport( address, port, LADDR, LPORT, null );
    }
    static synchronized SmbTransport getSmbTransport( UniAddress address, int port,
                                    InetAddress localAddr, int localPort, String hostName ) {
        SmbTransport conn;