Iterables.addAll(deque, elements);
    return deque;
  }

  // LinkedBlockingQueue

  /** Creates an empty {@code LinkedBlockingQueue} with a capacity of {@link Integer#MAX_VALUE}. */
  @J2ktIncompatible
  @GwtIncompatible // LinkedBlockingQueue
  public static <E> LinkedBlockingQueue<E> newLinkedBlockingQueue() {
    return new LinkedBlockingQueue<>();
  }

  /**

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.LinkedBlockingQueue;

import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.FessSystemException;
import org.codelibs.fess.helper.SystemHelper;

    Iterables.addAll(deque, elements);
    return deque;
  }

  // LinkedBlockingQueue

  /** Creates an empty {@code LinkedBlockingQueue} with a capacity of {@link Integer#MAX_VALUE}. */
  @J2ktIncompatible
  @GwtIncompatible // LinkedBlockingQueue
  public static <E> LinkedBlockingQueue<E> newLinkedBlockingQueue() {
    return new LinkedBlockingQueue<>();
  }

  /**

import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.stream.Stream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;