private @Nullable Queue<E> forgetMeNot;
    private @Nullable List<E> skipMe;
    private @Nullable E lastFromForgetMeNot;
    private boolean canRemove;

    @Override
    public boolean hasNext() {
      checkModCount();
      nextNotInSkipMe(cursor + 1);
      return (nextCursor < size()) || ((forgetMeNot != null) && !forgetMeNot.isEmpty());
    }

    @Override
    public E next() {

          }
        }

        @Override
        public boolean hasNext() {
          checkForComodification();
          return index != ENDPOINT && remaining > 0;
        }

        @Override
        @ParametricNullness
        public T next() {
          if (!hasNext()) {
            throw new NoSuchElementException();
          }
          T result = forEntry(index);

 *       these feats has become computationally feasible, the function is deemed "broken" and should
 *       no longer be used for secure purposes. (This is the likely eventual fate of <i>all</i>
 *       cryptographic hashes.)
 *   <li><b>fast:</b> perhaps self-explanatory, but often the most important consideration.
 * </ul>
 *
 * <h3>Providing input to a hash function</h3>
 *

 *       these feats has become computationally feasible, the function is deemed "broken" and should
 *       no longer be used for secure purposes. (This is the likely eventual fate of <i>all</i>
 *       cryptographic hashes.)
 *   <li><b>fast:</b> perhaps self-explanatory, but often the most important consideration.
 * </ul>
 *
 * <h3>Providing input to a hash function</h3>
 *

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TimeZone;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

            idleCallbackToRun = idleCallbackToRun,
          )
        }

        val callsToExecute = mutableListOf<AsyncCall>()
        val i = readyAsyncCalls.iterator()
        while (i.hasNext()) {
          val asyncCall = i.next()

          if (runningAsyncCalls.size >= this.maxRequests) break // Max capacity.
          if (asyncCall.callsPerHost.get() >= this.maxRequestsPerHost) continue // Host max capacity.

 */
package org.codelibs.fess.crawler.client.storage;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.InputStream;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.io.CopyUtil;

import java.net.SocketAddress;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

    }

    @Override
    public boolean removeAll(Collection<?> collection) {
      boolean changed = false;
      Iterator<E> itr = unfiltered.iterator();
      while (itr.hasNext()) {
        E e = itr.next();
        if (predicate.apply(e) && collection.contains(e)) {
          itr.remove();
          changed = true;
        }
      }
      return changed;
    }