import java.util.Objects;
import org.jspecify.annotations.Nullable;

/**
 * A collection which forwards all its method calls to another collection. Subclasses should
 * override one or more methods to modify the behavior of the backing collection as desired per the
 * <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingCollection} forward <b>indiscriminately</b> to

import java.util.Objects;
import org.jspecify.annotations.Nullable;

/**
 * A collection which forwards all its method calls to another collection. Subclasses should
 * override one or more methods to modify the behavior of the backing collection as desired per the
 * <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingCollection} forward <b>indiscriminately</b> to

import java.util.ListIterator;
import org.jspecify.annotations.Nullable;

/**
 * A list which forwards all its method calls to another list. Subclasses should override one or
 * more methods to modify the behavior of the backing list as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p>This class does not implement {@link java.util.RandomAccess}. If the delegate supports random

        dr.pathConsumed = path.length();

        dfs.insert(path, dr);

        assertNotNull(dfs.referrals);
        assertFalse(dfs.referrals.map.isEmpty());
        String key = "\\server\\share\\folder"; // Trailing slash should be removed
        assertTrue(dfs.referrals.map.containsKey(key.toLowerCase()));
    }

    return new Splitter(strategy, omitEmptyStrings, trimmer, maxItems);
  }

  /**
   * Returns a splitter that behaves equivalently to {@code this} splitter, but automatically
   * removes leading and trailing {@linkplain CharMatcher#whitespace whitespace} from each returned
   * substring; equivalent to {@code trimResults(CharMatcher.whitespace())}. For example, {@code

}

// pathJoin - like path.Join() but retains trailing SlashSeparator of the last element
func pathJoin(elem ...string) string {
	sb := bytebufferpool.Get()
	defer func() {
		sb.Reset()
		bytebufferpool.Put(sb)
	}()

	return pathJoinBuf(sb, elem...)
}

// pathJoinBuf - like path.Join() but retains trailing SlashSeparator of the last element.
// Provide a string builder to reduce allocation.

  /** Standard constructor. */
  protected AbstractMapBasedMultiset(Map<E, Count> backingMap) {
    checkArgument(backingMap.isEmpty());
    this.backingMap = backingMap;
  }

  /** Used during deserialization only. The backing map must be empty. */
  void setBackingMap(Map<E, Count> backingMap) {
    this.backingMap = backingMap;
  }

  // Required Implementations

  /**
   * {@inheritDoc}
   *

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Maps#transformValues} when the backing map's views have iterators that don't
 * support {@code remove()}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked

import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * A map which forwards all its method calls to another map. Subclasses should override one or more
 * methods to modify the behavior of the backing map as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingMap} forward <i>indiscriminately</i> to the

 * {@link #computeNext} method, and invoke the {@link #endOfData} method when appropriate.
 *
 * <p>Another example is an iterator that skips over null elements in a backing iterator. This could
 * be implemented as:
 *
 * {@snippet :
 * public static Iterator<String> skipNulls(final Iterator<String> in) {
 *   return new AbstractIterator<String>() {
 *     protected String computeNext() {