/*
	* Copyright (C) 2002-2019 Sebastiano Vigna
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	*     http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
package it.unimi.dsi.fastutil.bytes;
import it.unimi.dsi.fastutil.objects.ObjectIterator;
import it.unimi.dsi.fastutil.objects.ObjectIterable;
import it.unimi.dsi.fastutil.objects.ObjectSet;
import it.unimi.dsi.fastutil.objects.ObjectSets;
import it.unimi.dsi.fastutil.booleans.BooleanCollection;
import it.unimi.dsi.fastutil.booleans.BooleanCollections;
import it.unimi.dsi.fastutil.booleans.BooleanSets;
import java.util.Map;
import java.util.function.Consumer;
import it.unimi.dsi.fastutil.bytes.Byte2BooleanMap.FastEntrySet;
A class providing static methods and objects that do useful things with
type-specific maps.
See Also:
Collections/**
 * A class providing static methods and objects that do useful things with
 * type-specific maps.
 *
 * @see java.util.Collections
 */
public final class Byte2BooleanMaps {
	private Byte2BooleanMaps() {
	}
	
Returns an iterator that will be fast, if possible, on the entry set of the provided map. 
Params:
map – 
           a map from which we will try to extract a (fast) iterator on the
           entry set.
Returns:
an iterator on the entry set of the given map that will be fast, if
        possible.
Since:
8.0.0/**
	 * Returns an iterator that will be {@linkplain FastEntrySet fast}, if possible,
	 * on the {@linkplain Map#entrySet() entry set} of the provided {@code map}.
	 * 
	 * @param map
	 *            a map from which we will try to extract a (fast) iterator on the
	 *            entry set.
	 * @return an iterator on the entry set of the given map that will be fast, if
	 *         possible.
	 * @since 8.0.0
	 */

	public static ObjectIterator<Byte2BooleanMap.Entry> fastIterator(Byte2BooleanMap map) {
		final ObjectSet<Byte2BooleanMap.Entry> entries = map.byte2BooleanEntrySet();
		return entries instanceof Byte2BooleanMap.FastEntrySet
				? ((Byte2BooleanMap.FastEntrySet) entries).fastIterator()
				: entries.iterator();
	}
	
Iterates quickly, if possible, on the entry set of the provided map. 
Params:
map –  a map on which we will try to iterate quickly.
consumer –  the consumer that will be passed to FastEntrySet.fastForEach(Consumer<? super Entry>), if possible, or to Iterable.forEach(Consumer).
Since:
8.1.0/**
	 * Iterates {@linkplain FastEntrySet#fastForEach(Consumer) quickly}, if
	 * possible, on the {@linkplain Map#entrySet() entry set} of the provided
	 * {@code map}.
	 * 
	 * @param map
	 *            a map on which we will try to iterate
	 *            {@linkplain FastEntrySet#fastForEach(Consumer) quickly}.
	 * @param consumer
	 *            the consumer that will be passed to
	 *            {@link FastEntrySet#fastForEach(Consumer)}, if possible, or to
	 *            {@link Iterable#forEach(Consumer)}.
	 * @since 8.1.0
	 */

	public static void fastForEach(Byte2BooleanMap map, final Consumer<? super Byte2BooleanMap.Entry> consumer) {
		final ObjectSet<Byte2BooleanMap.Entry> entries = map.byte2BooleanEntrySet();
		if (entries instanceof Byte2BooleanMap.FastEntrySet)
			((Byte2BooleanMap.FastEntrySet) entries).fastForEach(consumer);
		else
			entries.forEach(consumer);
	}
	
Returns an iterable yielding an iterator that will be fast, if possible, on the entry set of the provided map. 
Params:
map – 
           a map from which we will try to extract an iterable yielding a
           (fast) iterator on the entry set.
Returns:
an iterable yielding an iterator on the entry set of the given map
        that will be fast, if possible.
Since:
8.0.0/**
	 * Returns an iterable yielding an iterator that will be
	 * {@linkplain FastEntrySet fast}, if possible, on the
	 * {@linkplain Map#entrySet() entry set} of the provided {@code map}.
	 * 
	 * @param map
	 *            a map from which we will try to extract an iterable yielding a
	 *            (fast) iterator on the entry set.
	 * @return an iterable yielding an iterator on the entry set of the given map
	 *         that will be fast, if possible.
	 * @since 8.0.0
	 */

	public static ObjectIterable<Byte2BooleanMap.Entry> fastIterable(Byte2BooleanMap map) {
		final ObjectSet<Byte2BooleanMap.Entry> entries = map.byte2BooleanEntrySet();
		return entries instanceof Byte2BooleanMap.FastEntrySet ? new ObjectIterable<Byte2BooleanMap.Entry>() {
			public ObjectIterator<Byte2BooleanMap.Entry> iterator() {
				return ((Byte2BooleanMap.FastEntrySet) entries).fastIterator();
			}
			public void forEach(final Consumer<? super Byte2BooleanMap.Entry> consumer) {
				((Byte2BooleanMap.FastEntrySet) entries).fastForEach(consumer);
			}
		} : entries;
	}
	
An immutable class representing an empty type-specific map.

This class may be useful to implement your own in case you subclass a
type-specific map.
/**
	 * An immutable class representing an empty type-specific map.
	 *
	 * <p>
	 * This class may be useful to implement your own in case you subclass a
	 * type-specific map.
	 */
	public static class EmptyMap extends Byte2BooleanFunctions.EmptyFunction
			implements
				Byte2BooleanMap,
				java.io.Serializable,
				Cloneable {
		private static final long serialVersionUID = -7046029254386353129L;
		protected EmptyMap() {
		}
		@Override
		public boolean containsValue(final boolean v) {
			return false;
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean containsValue(final Object ov) {
			return false;
		}
		@Override
		public void putAll(final Map<? extends Byte, ? extends Boolean> m) {
			throw new UnsupportedOperationException();
		}
		@SuppressWarnings("unchecked")
		@Override
		public ObjectSet<Byte2BooleanMap.Entry> byte2BooleanEntrySet() {
			return ObjectSets.EMPTY_SET;
		}

		@Override
		public ByteSet keySet() {
			return ByteSets.EMPTY_SET;
		}

		@Override
		public BooleanCollection values() {
			return BooleanSets.EMPTY_SET;
		}
		@Override
		public Object clone() {
			return EMPTY_MAP;
		}
		@Override
		public boolean isEmpty() {
			return true;
		}
		@Override
		public int hashCode() {
			return 0;
		}
		@Override
		public boolean equals(final Object o) {
			if (!(o instanceof Map))
				return false;
			return ((Map<?, ?>) o).isEmpty();
		}
		@Override
		public String toString() {
			return "{}";
		}
	}
	
An empty type-specific map (immutable). It is serializable and cloneable.
/**
	 * An empty type-specific map (immutable). It is serializable and cloneable.
	 */

	public static final EmptyMap EMPTY_MAP = new EmptyMap();
	
An immutable class representing a type-specific singleton map.

This class may be useful to implement your own in case you subclass a
type-specific map.
/**
	 * An immutable class representing a type-specific singleton map.
	 *
	 * <p>
	 * This class may be useful to implement your own in case you subclass a
	 * type-specific map.
	 */
	public static class Singleton extends Byte2BooleanFunctions.Singleton
			implements
				Byte2BooleanMap,
				java.io.Serializable,
				Cloneable {
		private static final long serialVersionUID = -7046029254386353129L;
		protected transient ObjectSet<Byte2BooleanMap.Entry> entries;
		protected transient ByteSet keys;
		protected transient BooleanCollection values;
		protected Singleton(final byte key, final boolean value) {
			super(key, value);
		}
		@Override
		public boolean containsValue(final boolean v) {
			return ((value) == (v));
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean containsValue(final Object ov) {
			return ((((Boolean) (ov)).booleanValue()) == (value));
		}
		@Override
		public void putAll(final Map<? extends Byte, ? extends Boolean> m) {
			throw new UnsupportedOperationException();
		}
		@Override
		public ObjectSet<Byte2BooleanMap.Entry> byte2BooleanEntrySet() {
			if (entries == null)
				entries = ObjectSets.singleton(new AbstractByte2BooleanMap.BasicEntry(key, value));
			return entries;
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		@SuppressWarnings({"rawtypes", "unchecked"})
		public ObjectSet<Map.Entry<Byte, Boolean>> entrySet() {
			return (ObjectSet) byte2BooleanEntrySet();
		}
		@Override
		public ByteSet keySet() {
			if (keys == null)
				keys = ByteSets.singleton(key);
			return keys;
		}
		@Override
		public BooleanCollection values() {
			if (values == null)
				values = BooleanSets.singleton(value);
			return values;
		}
		@Override
		public boolean isEmpty() {
			return false;
		}
		@Override
		public int hashCode() {
			return (key) ^ (value ? 1231 : 1237);
		}
		@Override
		public boolean equals(final Object o) {
			if (o == this)
				return true;
			if (!(o instanceof Map))
				return false;
			Map<?, ?> m = (Map<?, ?>) o;
			if (m.size() != 1)
				return false;
			return m.entrySet().iterator().next().equals(entrySet().iterator().next());
		}
		@Override
		public String toString() {
			return "{" + key + "=>" + value + "}";
		}
	}
	
Returns a type-specific immutable map containing only the specified pair. The
returned map is serializable and cloneable.

Note that albeit the returned map is immutable, its default return value may
be changed.
Params:
key – 
           the only key of the returned map.
value – 
           the only value of the returned map.
Returns:
a type-specific immutable map containing just the pair &lt;key,value&gt;./**
	 * Returns a type-specific immutable map containing only the specified pair. The
	 * returned map is serializable and cloneable.
	 *
	 * <p>
	 * Note that albeit the returned map is immutable, its default return value may
	 * be changed.
	 *
	 * @param key
	 *            the only key of the returned map.
	 * @param value
	 *            the only value of the returned map.
	 * @return a type-specific immutable map containing just the pair
	 *         {@code &lt;key,value&gt;}.
	 */
	public static Byte2BooleanMap singleton(final byte key, boolean value) {
		return new Singleton(key, value);
	}
	
Returns a type-specific immutable map containing only the specified pair. The
returned map is serializable and cloneable.

Note that albeit the returned map is immutable, its default return value may
be changed.
Params:
key – 
           the only key of the returned map.
value – 
           the only value of the returned map.
Returns:
a type-specific immutable map containing just the pair &lt;key,value&gt;./**
	 * Returns a type-specific immutable map containing only the specified pair. The
	 * returned map is serializable and cloneable.
	 *
	 * <p>
	 * Note that albeit the returned map is immutable, its default return value may
	 * be changed.
	 *
	 * @param key
	 *            the only key of the returned map.
	 * @param value
	 *            the only value of the returned map.
	 * @return a type-specific immutable map containing just the pair
	 *         {@code &lt;key,value&gt;}.
	 */
	public static Byte2BooleanMap singleton(final Byte key, final Boolean value) {
		return new Singleton((key).byteValue(), (value).booleanValue());
	}
	
A synchronized wrapper class for maps. /** A synchronized wrapper class for maps. */
	public static class SynchronizedMap extends Byte2BooleanFunctions.SynchronizedFunction
			implements
				Byte2BooleanMap,
				java.io.Serializable {
		private static final long serialVersionUID = -7046029254386353129L;
		protected final Byte2BooleanMap map;
		protected transient ObjectSet<Byte2BooleanMap.Entry> entries;
		protected transient ByteSet keys;
		protected transient BooleanCollection values;
		protected SynchronizedMap(final Byte2BooleanMap m, final Object sync) {
			super(m, sync);
			this.map = m;
		}
		protected SynchronizedMap(final Byte2BooleanMap m) {
			super(m);
			this.map = m;
		}
		@Override
		public boolean containsValue(final boolean v) {
			synchronized (sync) {
				return map.containsValue(v);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean containsValue(final Object ov) {
			synchronized (sync) {
				return map.containsValue(ov);
			}
		}
		@Override
		public void putAll(final Map<? extends Byte, ? extends Boolean> m) {
			synchronized (sync) {
				map.putAll(m);
			}
		}
		@Override
		public ObjectSet<Byte2BooleanMap.Entry> byte2BooleanEntrySet() {
			synchronized (sync) {
				if (entries == null)
					entries = ObjectSets.synchronize(map.byte2BooleanEntrySet(), sync);
				return entries;
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		@SuppressWarnings({"unchecked", "rawtypes"})
		public ObjectSet<Map.Entry<Byte, Boolean>> entrySet() {
			return (ObjectSet) byte2BooleanEntrySet();
		}
		@Override
		public ByteSet keySet() {
			synchronized (sync) {
				if (keys == null)
					keys = ByteSets.synchronize(map.keySet(), sync);
				return keys;
			}
		}
		@Override
		public BooleanCollection values() {
			synchronized (sync) {
				if (values == null)
					return BooleanCollections.synchronize(map.values(), sync);
				return values;
			}
		}
		@Override
		public boolean isEmpty() {
			synchronized (sync) {
				return map.isEmpty();
			}
		}
		@Override
		public int hashCode() {
			synchronized (sync) {
				return map.hashCode();
			}
		}
		@Override
		public boolean equals(final Object o) {
			if (o == this)
				return true;
			synchronized (sync) {
				return map.equals(o);
			}
		}
		private void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
			synchronized (sync) {
				s.defaultWriteObject();
			}
		}
		// Defaultable methods
		@Override
		public boolean getOrDefault(final byte key, final boolean defaultValue) {
			synchronized (sync) {
				return map.getOrDefault(key, defaultValue);
			}
		}
		@Override
		public void forEach(final java.util.function.BiConsumer<? super Byte, ? super Boolean> action) {
			synchronized (sync) {
				map.forEach(action);
			}
		}
		@Override
		public void replaceAll(
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> function) {
			synchronized (sync) {
				map.replaceAll(function);
			}
		}
		@Override
		public boolean putIfAbsent(final byte key, final boolean value) {
			synchronized (sync) {
				return map.putIfAbsent(key, value);
			}
		}
		@Override
		public boolean remove(final byte key, final boolean value) {
			synchronized (sync) {
				return map.remove(key, value);
			}
		}
		@Override
		public boolean replace(final byte key, final boolean value) {
			synchronized (sync) {
				return map.replace(key, value);
			}
		}
		@Override
		public boolean replace(final byte key, final boolean oldValue, final boolean newValue) {
			synchronized (sync) {
				return map.replace(key, oldValue, newValue);
			}
		}
		@Override
		public boolean computeIfAbsent(final byte key, final java.util.function.IntPredicate mappingFunction) {
			synchronized (sync) {
				return map.computeIfAbsent(key, mappingFunction);
			}
		}
		@Override
		public boolean computeIfAbsentNullable(final byte key,
				final java.util.function.IntFunction<? extends Boolean> mappingFunction) {
			synchronized (sync) {
				return map.computeIfAbsentNullable(key, mappingFunction);
			}
		}
		@Override
		public boolean computeIfAbsentPartial(final byte key, final Byte2BooleanFunction mappingFunction) {
			synchronized (sync) {
				return map.computeIfAbsentPartial(key, mappingFunction);
			}
		}
		@Override
		public boolean computeIfPresent(final byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.computeIfPresent(key, remappingFunction);
			}
		}
		@Override
		public boolean compute(final byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.compute(key, remappingFunction);
			}
		}
		@Override
		public boolean merge(final byte key, final boolean value,
				final java.util.function.BiFunction<? super Boolean, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.merge(key, value, remappingFunction);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean getOrDefault(final Object key, final Boolean defaultValue) {
			synchronized (sync) {
				return map.getOrDefault(key, defaultValue);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean remove(final Object key, final Object value) {
			synchronized (sync) {
				return map.remove(key, value);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean replace(final Byte key, final Boolean value) {
			synchronized (sync) {
				return map.replace(key, value);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean replace(final Byte key, final Boolean oldValue, final Boolean newValue) {
			synchronized (sync) {
				return map.replace(key, oldValue, newValue);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean putIfAbsent(final Byte key, final Boolean value) {
			synchronized (sync) {
				return map.putIfAbsent(key, value);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean computeIfAbsent(final Byte key,
				final java.util.function.Function<? super Byte, ? extends Boolean> mappingFunction) {
			synchronized (sync) {
				return map.computeIfAbsent(key, mappingFunction);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean computeIfPresent(final Byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.computeIfPresent(key, remappingFunction);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean compute(final Byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.compute(key, remappingFunction);
			}
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean merge(final Byte key, final Boolean value,
				final java.util.function.BiFunction<? super Boolean, ? super Boolean, ? extends Boolean> remappingFunction) {
			synchronized (sync) {
				return map.merge(key, value, remappingFunction);
			}
		}
	}
	
Returns a synchronized type-specific map backed by the given type-specific
map.
Params:
m – 
           the map to be wrapped in a synchronized map.
See Also:
Collections.synchronizedMap(Map<Object,Object>)
Returns:
a synchronized view of the specified map./**
	 * Returns a synchronized type-specific map backed by the given type-specific
	 * map.
	 *
	 * @param m
	 *            the map to be wrapped in a synchronized map.
	 * @return a synchronized view of the specified map.
	 * @see java.util.Collections#synchronizedMap(Map)
	 */
	public static Byte2BooleanMap synchronize(final Byte2BooleanMap m) {
		return new SynchronizedMap(m);
	}
	
Returns a synchronized type-specific map backed by the given type-specific
map, using an assigned object to synchronize.
Params:
m – 
           the map to be wrapped in a synchronized map.
sync – 
           an object that will be used to synchronize the access to the map.
See Also:
Collections.synchronizedMap(Map<Object,Object>)
Returns:
a synchronized view of the specified map./**
	 * Returns a synchronized type-specific map backed by the given type-specific
	 * map, using an assigned object to synchronize.
	 *
	 * @param m
	 *            the map to be wrapped in a synchronized map.
	 * @param sync
	 *            an object that will be used to synchronize the access to the map.
	 * @return a synchronized view of the specified map.
	 * @see java.util.Collections#synchronizedMap(Map)
	 */
	public static Byte2BooleanMap synchronize(final Byte2BooleanMap m, final Object sync) {
		return new SynchronizedMap(m, sync);
	}
	
An unmodifiable wrapper class for maps. /** An unmodifiable wrapper class for maps. */
	public static class UnmodifiableMap extends Byte2BooleanFunctions.UnmodifiableFunction
			implements
				Byte2BooleanMap,
				java.io.Serializable {
		private static final long serialVersionUID = -7046029254386353129L;
		protected final Byte2BooleanMap map;
		protected transient ObjectSet<Byte2BooleanMap.Entry> entries;
		protected transient ByteSet keys;
		protected transient BooleanCollection values;
		protected UnmodifiableMap(final Byte2BooleanMap m) {
			super(m);
			this.map = m;
		}
		@Override
		public boolean containsValue(final boolean v) {
			return map.containsValue(v);
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean containsValue(final Object ov) {
			return map.containsValue(ov);
		}
		@Override
		public void putAll(final Map<? extends Byte, ? extends Boolean> m) {
			throw new UnsupportedOperationException();
		}
		@Override
		public ObjectSet<Byte2BooleanMap.Entry> byte2BooleanEntrySet() {
			if (entries == null)
				entries = ObjectSets.unmodifiable(map.byte2BooleanEntrySet());
			return entries;
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		@SuppressWarnings({"unchecked", "rawtypes"})
		public ObjectSet<Map.Entry<Byte, Boolean>> entrySet() {
			return (ObjectSet) byte2BooleanEntrySet();
		}
		@Override
		public ByteSet keySet() {
			if (keys == null)
				keys = ByteSets.unmodifiable(map.keySet());
			return keys;
		}
		@Override
		public BooleanCollection values() {
			if (values == null)
				return BooleanCollections.unmodifiable(map.values());
			return values;
		}
		@Override
		public boolean isEmpty() {
			return map.isEmpty();
		}
		@Override
		public int hashCode() {
			return map.hashCode();
		}
		@Override
		public boolean equals(final Object o) {
			if (o == this)
				return true;
			return map.equals(o);
		}
		// Defaultable methods
		@Override
		public boolean getOrDefault(final byte key, final boolean defaultValue) {
			return map.getOrDefault(key, defaultValue);
		}
		@Override
		public void forEach(final java.util.function.BiConsumer<? super Byte, ? super Boolean> action) {
			map.forEach(action);
		}
		@Override
		public void replaceAll(
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> function) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean putIfAbsent(final byte key, final boolean value) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean remove(final byte key, final boolean value) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean replace(final byte key, final boolean value) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean replace(final byte key, final boolean oldValue, final boolean newValue) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean computeIfAbsent(final byte key, final java.util.function.IntPredicate mappingFunction) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean computeIfAbsentNullable(final byte key,
				final java.util.function.IntFunction<? extends Boolean> mappingFunction) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean computeIfAbsentPartial(final byte key, final Byte2BooleanFunction mappingFunction) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean computeIfPresent(final byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean compute(final byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
		@Override
		public boolean merge(final byte key, final boolean value,
				final java.util.function.BiFunction<? super Boolean, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean getOrDefault(final Object key, final Boolean defaultValue) {
			return map.getOrDefault(key, defaultValue);
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean remove(final Object key, final Object value) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean replace(final Byte key, final Boolean value) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public boolean replace(final Byte key, final Boolean oldValue, final Boolean newValue) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean putIfAbsent(final Byte key, final Boolean value) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean computeIfAbsent(final Byte key,
				final java.util.function.Function<? super Byte, ? extends Boolean> mappingFunction) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean computeIfPresent(final Byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean compute(final Byte key,
				final java.util.function.BiFunction<? super Byte, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
		
{@inheritDoc}
Deprecated:
Please use the corresponding type-specific method instead./**
		 * {@inheritDoc}
		 * 
		 * @deprecated Please use the corresponding type-specific method instead.
		 */
		@Deprecated
		@Override
		public Boolean merge(final Byte key, final Boolean value,
				final java.util.function.BiFunction<? super Boolean, ? super Boolean, ? extends Boolean> remappingFunction) {
			throw new UnsupportedOperationException();
		}
	}
	
Returns an unmodifiable type-specific map backed by the given type-specific
map.
Params:
m – 
           the map to be wrapped in an unmodifiable map.
See Also:
Collections.unmodifiableMap(Map<? extends Object,? extends Object>)
Returns:
an unmodifiable view of the specified map./**
	 * Returns an unmodifiable type-specific map backed by the given type-specific
	 * map.
	 *
	 * @param m
	 *            the map to be wrapped in an unmodifiable map.
	 * @return an unmodifiable view of the specified map.
	 * @see java.util.Collections#unmodifiableMap(Map)
	 */
	public static Byte2BooleanMap unmodifiable(final Byte2BooleanMap m) {
		return new UnmodifiableMap(m);
	}
}