immutablePrimitiveObjectEmptyMap.stg

import "copyright.stg"
import "primitiveEquals.stg"
import "primitiveHashCode.stg"
import "primitiveLiteral.stg"

targetPath() ::= "org/eclipse/collections/impl/map/immutable/primitive"

fileName(primitive) ::= "Immutable<primitive.name>ObjectEmptyMap"

skipBoolean() ::= "true"

class(primitive) ::= <<
<body(primitive.type, primitive.name)>
>>

collectPrimitive(name, type) ::= <<
public Immutable<name>Bag collect<name>(<name>Function\<? super V> <type>Function)
{
    return <name>Bags.immutable.empty();
}

public \<R extends Mutable<name>Collection> R collect<name>(<name>Function\<? super V> <type>Function, R target)
{
    return target;
}
>>

body(type, name) ::= <<
<copyright()>

package org.eclipse.collections.impl.map.immutable.primitive;

import java.io.IOException;
import java.io.Serializable;
import java.util.Collection;
import java.util.Comparator;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Optional;

import org.eclipse.collections.api.<name>Iterable;
import org.eclipse.collections.api.Lazy<name>Iterable;
import org.eclipse.collections.api.LazyIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.ImmutableBag;
import org.eclipse.collections.api.bag.MutableBag;
import org.eclipse.collections.api.bag.primitive.ImmutableBooleanBag;
import org.eclipse.collections.api.bag.primitive.ImmutableByteBag;
import org.eclipse.collections.api.bag.primitive.ImmutableCharBag;
import org.eclipse.collections.api.bag.primitive.ImmutableDoubleBag;
import org.eclipse.collections.api.bag.primitive.ImmutableFloatBag;
import org.eclipse.collections.api.bag.primitive.ImmutableIntBag;
import org.eclipse.collections.api.bag.primitive.ImmutableLongBag;
import org.eclipse.collections.api.bag.primitive.ImmutableShortBag;
import org.eclipse.collections.api.bag.sorted.MutableSortedBag;
import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.Function0;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.block.function.primitive.BooleanFunction;
import org.eclipse.collections.api.block.function.primitive.ByteFunction;
import org.eclipse.collections.api.block.function.primitive.CharFunction;
import org.eclipse.collections.api.block.function.primitive.DoubleFunction;
import org.eclipse.collections.api.block.function.primitive.DoubleObjectToDoubleFunction;
import org.eclipse.collections.api.block.function.primitive.FloatFunction;
import org.eclipse.collections.api.block.function.primitive.FloatObjectToFloatFunction;
import org.eclipse.collections.api.block.function.primitive.IntFunction;
import org.eclipse.collections.api.block.function.primitive.IntObjectToIntFunction;
import org.eclipse.collections.api.block.function.primitive.LongFunction;
import org.eclipse.collections.api.block.function.primitive.LongObjectToLongFunction;
import org.eclipse.collections.api.block.function.primitive.ShortFunction;
import org.eclipse.collections.api.block.predicate.Predicate;
import org.eclipse.collections.api.block.predicate.Predicate2;
import org.eclipse.collections.api.block.predicate.primitive.<name>ObjectPredicate;
import org.eclipse.collections.api.block.procedure.Procedure;
import org.eclipse.collections.api.block.procedure.Procedure2;
import org.eclipse.collections.api.block.procedure.primitive.<name>ObjectProcedure;
import org.eclipse.collections.api.block.procedure.primitive.<name>Procedure;
import org.eclipse.collections.api.block.procedure.primitive.ObjectIntProcedure;
import org.eclipse.collections.api.collection.primitive.MutableBooleanCollection;
import org.eclipse.collections.api.collection.primitive.MutableByteCollection;
import org.eclipse.collections.api.collection.primitive.MutableCharCollection;
import org.eclipse.collections.api.collection.primitive.MutableDoubleCollection;
import org.eclipse.collections.api.collection.primitive.MutableFloatCollection;
import org.eclipse.collections.api.collection.primitive.MutableIntCollection;
import org.eclipse.collections.api.collection.primitive.MutableLongCollection;
import org.eclipse.collections.api.collection.primitive.MutableShortCollection;
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.api.map.ImmutableMap;
import org.eclipse.collections.api.map.MutableMap;
import org.eclipse.collections.api.map.primitive.<name>ObjectMap;
import org.eclipse.collections.api.map.primitive.Immutable<name>ObjectMap;
import org.eclipse.collections.api.map.primitive.ImmutableObjectDoubleMap;
import org.eclipse.collections.api.map.primitive.ImmutableObjectLongMap;
import org.eclipse.collections.api.map.primitive.ObjectDoubleMap;
import org.eclipse.collections.api.map.primitive.ObjectLongMap;
import org.eclipse.collections.api.map.sorted.MutableSortedMap;
import org.eclipse.collections.api.multimap.MutableMultimap;
import org.eclipse.collections.api.multimap.bag.ImmutableBagMultimap;
import org.eclipse.collections.api.partition.bag.PartitionImmutableBag;
import org.eclipse.collections.api.set.ImmutableSet;
import org.eclipse.collections.api.set.MutableSet;
import org.eclipse.collections.api.set.primitive.Mutable<name>Set;
import org.eclipse.collections.api.set.sorted.MutableSortedSet;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.api.tuple.primitive.<name>ObjectPair;
import org.eclipse.collections.impl.bag.sorted.mutable.TreeBag;
import org.eclipse.collections.impl.block.factory.Comparators;
import org.eclipse.collections.impl.factory.Bags;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.impl.factory.Maps;
import org.eclipse.collections.impl.factory.Multimaps;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.factory.SortedMaps;
import org.eclipse.collections.impl.factory.SortedSets;
import org.eclipse.collections.impl.factory.primitive.BooleanBags;
import org.eclipse.collections.impl.factory.primitive.ByteBags;
import org.eclipse.collections.impl.factory.primitive.CharBags;
import org.eclipse.collections.impl.factory.primitive.DoubleBags;
import org.eclipse.collections.impl.factory.primitive.FloatBags;
import org.eclipse.collections.impl.factory.primitive.IntBags;
import org.eclipse.collections.impl.factory.primitive.LongBags;
import org.eclipse.collections.impl.factory.primitive.ShortBags;
import org.eclipse.collections.impl.factory.primitive.ObjectDoubleMaps;
import org.eclipse.collections.impl.factory.primitive.ObjectLongMaps;
import org.eclipse.collections.impl.factory.primitive.ShortLists;
import org.eclipse.collections.impl.lazy.LazyIterableAdapter;
import org.eclipse.collections.impl.list.mutable.FastList;
import org.eclipse.collections.impl.map.mutable.primitive.<name>ObjectHashMap;
import org.eclipse.collections.impl.map.mutable.primitive.ObjectDoubleHashMap;
import org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap;
import org.eclipse.collections.impl.partition.bag.PartitionHashBag;
import org.eclipse.collections.impl.set.mutable.primitive.<name>HashSet;
import org.eclipse.collections.impl.set.mutable.primitive.Unmodifiable<name>Set;
import org.eclipse.collections.impl.utility.LazyIterate;
import org.eclipse.collections.impl.utility.primitive.Lazy<name>Iterate;

/**
 * Immutable<name>ObjectEmptyMap is an optimization for {@link Immutable<name>ObjectMap} of size 0.
 * This file was automatically generated from template file immutablePrimitiveObjectEmptyMap.stg.
 *
 * @since 4.0.
 */
final class Immutable<name>ObjectEmptyMap\<V> implements Immutable<name>ObjectMap\<V>, Serializable
{
    static final Immutable<name>ObjectMap\<?> INSTANCE = new Immutable<name>ObjectEmptyMap\<Object>();

    private static final long serialVersionUID = 1L;

    private Object readResolve()
    {
        return INSTANCE;
    }

    public V get(<type> key)
    {
        return null;
    }

    public V getIfAbsent(<type> key, Function0\<? extends V> ifAbsent)
    {
        return ifAbsent.value();
    }

    public boolean containsKey(<type> key)
    {
        return false;
    }

    public boolean containsValue(Object value)
    {
        return false;
    }

    public Immutable<name>ObjectMap\<V> tap(Procedure\<? super V> procedure)
    {
        return this;
    }

    public void forEachValue(Procedure\<? super V> procedure)
    {
    }

    public void forEachKey(<name>Procedure procedure)
    {
    }

    public void forEachKeyValue(<name>ObjectProcedure\<? super V> procedure)
    {
    }

    public Immutable<name>ObjectMap\<V> select(<name>ObjectPredicate\<? super V> predicate)
    {
        return this;
    }

    public Immutable<name>ObjectMap\<V> reject(<name>ObjectPredicate\<? super V> predicate)
    {
        return this;
    }

    public Immutable<name>ObjectMap\<V> toImmutable()
    {
        return this;
    }

    public int size()
    {
        return 0;
    }

    public boolean isEmpty()
    {
        return true;
    }

    public boolean notEmpty()
    {
        return false;
    }

    public V getFirst()
    {
        return null;
    }

    public V getLast()
    {
        return null;
    }

    public V getOnly()
    {
        throw new IllegalStateException("Size must be 1 but was " + this.size());
    }

    public boolean contains(Object object)
    {
        return false;
    }

    public boolean containsAllIterable(Iterable\<?> source)
    {
        return !source.iterator().hasNext();
    }

    public boolean containsAll(Collection\<?> source)
    {
        return source.isEmpty();
    }

    public boolean containsAllArguments(Object... elements)
    {
        return elements.length == 0;
    }

    public ImmutableBag\<V> select(Predicate\<? super V> predicate)
    {
        return Bags.immutable.empty();
    }

    public \<P> ImmutableBag\<V> selectWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return Bags.immutable.empty();
    }

    public ImmutableBag\<V> reject(Predicate\<? super V> predicate)
    {
        return Bags.immutable.empty();
    }

    public \<P> ImmutableBag\<V> rejectWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return Bags.immutable.empty();
    }

    public \<R extends Collection\<V>\> R select(Predicate\<? super V> predicate, R target)
    {
        return target;
    }

    public \<P, R extends Collection\<V>\> R selectWith(Predicate2\<? super V, ? super P> predicate, P parameter, R target)
    {
        return target;
    }

    public \<R extends Collection\<V>\> R reject(Predicate\<? super V> predicate, R target)
    {
        return target;
    }

    public \<P, R extends Collection\<V>\> R rejectWith(Predicate2\<? super V, ? super P> predicate, P parameter, R target)
    {
        return target;
    }

    public PartitionImmutableBag\<V> partition(Predicate\<? super V> predicate)
    {
        return new PartitionHashBag\<V>().toImmutable();
    }

    public \<P> PartitionImmutableBag\<V> partitionWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return new PartitionHashBag\<V>().toImmutable();
    }

    public \<S> ImmutableBag\<S> selectInstancesOf(Class\<S> clazz)
    {
        return Bags.immutable.empty();
    }

    public \<VV> ImmutableBag\<VV> collect(Function\<? super V, ? extends VV> function)
    {
        return Bags.immutable.empty();
    }

    public \<P, VV> ImmutableBag\<VV> collectWith(Function2\<? super V, ? super P, ? extends VV> function, P parameter)
    {
        return Bags.immutable.empty();
    }

    public \<VV> ImmutableBag\<VV> collectIf(Predicate\<? super V> predicate, Function\<? super V, ? extends VV> function)
    {
        return Bags.immutable.empty();
    }

    <collectPrimitive("Boolean", "boolean")>

    <collectPrimitive("Byte", "byte")>

    <collectPrimitive("Char", "char")>

    <collectPrimitive("Double", "double")>

    <collectPrimitive("Float", "float")>

    <collectPrimitive("Int", "int")>

    <collectPrimitive("Long", "long")>

    <collectPrimitive("Short", "short")>

    public \<VV> ImmutableBag\<VV> flatCollect(Function\<? super V, ? extends Iterable\<VV>\> function)
    {
        return Bags.immutable.empty();
    }

    public V detect(Predicate\<? super V> predicate)
    {
        return null;
    }

    public \<P> V detectWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return null;
    }

    public Optional\<V> detectOptional(Predicate\<? super V> predicate)
    {
        return Optional.empty();
    }

    public \<P> Optional\<V> detectWithOptional(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return Optional.empty();
    }

    public V detectIfNone(Predicate\<? super V> predicate, Function0\<? extends V> function)
    {
        return function.value();
    }

    public \<P> V detectWithIfNone(Predicate2\<? super V, ? super P> predicate, P parameter, Function0\<? extends V> function)
    {
        return function.value();
    }

    public int count(Predicate\<? super V> predicate)
    {
        return 0;
    }

    public \<P> int countWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return 0;
    }

    public boolean anySatisfy(Predicate\<? super V> predicate)
    {
        return false;
    }

    public \<P> boolean anySatisfyWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return false;
    }

    public boolean allSatisfy(Predicate\<? super V> predicate)
    {
        return true;
    }

    public \<P> boolean allSatisfyWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return true;
    }

    public boolean noneSatisfy(Predicate\<? super V> predicate)
    {
        return true;
    }

    public \<P> boolean noneSatisfyWith(Predicate2\<? super V, ? super P> predicate, P parameter)
    {
        return true;
    }

    public \<IV> IV injectInto(IV injectedValue, Function2\<? super IV, ? super V, ? extends IV> function)
    {
        return injectedValue;
    }

    public int injectInto(int injectedValue, IntObjectToIntFunction\<? super V> function)
    {
        return injectedValue;
    }

    public long injectInto(long injectedValue, LongObjectToLongFunction\<? super V> function)
    {
        return injectedValue;
    }

    public float injectInto(float injectedValue, FloatObjectToFloatFunction\<? super V> function)
    {
        return injectedValue;
    }

    public double injectInto(double injectedValue, DoubleObjectToDoubleFunction\<? super V> function)
    {
        return injectedValue;
    }

    public \<R extends Collection\<V>\> R into(R target)
    {
        return target;
    }

    public MutableList\<V> toList()
    {
        return Lists.mutable.with();
    }

    public MutableList\<V> toSortedList()
    {
        return Lists.mutable.with();
    }

    public MutableList\<V> toSortedList(Comparator\<? super V> comparator)
    {
        return Lists.mutable.with();
    }

    public MutableSet\<V> toSet()
    {
        return Sets.mutable.with();
    }

    public MutableSortedSet\<V> toSortedSet()
    {
        return SortedSets.mutable.with();
    }

    public MutableSortedSet\<V> toSortedSet(Comparator\<? super V> comparator)
    {
        return SortedSets.mutable.with();
    }

    public MutableBag\<V> toBag()
    {
        return Bags.mutable.with();
    }

    public MutableSortedBag\<V> toSortedBag()
    {
        return TreeBag.newBag();
    }

    public MutableSortedBag\<V> toSortedBag(Comparator\<? super V> comparator)
    {
        return TreeBag.newBag(comparator);
    }

    public \<VV extends Comparable\<? super VV>\> MutableSortedBag\<V> toSortedBagBy(Function\<? super V, ? extends VV> function)
    {
        return TreeBag.newBag(Comparators.byFunction(function));
    }

    public \<NK, NV> MutableMap\<NK, NV> toMap(Function\<? super V, ? extends NK> keyFunction, Function\<? super V, ? extends NV> valueFunction)
    {
        return Maps.mutable.with();
    }

    public \<NK, NV> MutableSortedMap\<NK, NV> toSortedMap(Function\<? super V, ? extends NK> keyFunction, Function\<? super V, ? extends NV> valueFunction)
    {
        return SortedMaps.mutable.with();
    }

    public \<NK, NV> MutableSortedMap\<NK, NV> toSortedMap(Comparator\<? super NK> comparator, Function\<? super V, ? extends NK> keyFunction, Function\<? super V, ? extends NV> valueFunction)
    {
        return SortedMaps.mutable.with();
    }

    public LazyIterable\<V> asLazy()
    {
        return new LazyIterableAdapter\<V>(FastList.\<V>newListWith());
    }

    public Object[] toArray()
    {
        return new Object[0];
    }

    public \<T> T[] toArray(T[] a)
    {
        return (T[]) new Object[0];
    }

    public V min(Comparator\<? super V> comparator)
    {
        throw new NoSuchElementException();
    }

    public V max(Comparator\<? super V> comparator)
    {
        throw new NoSuchElementException();
    }

    public V min()
    {
        throw new NoSuchElementException();
    }

    public V max()
    {
        throw new NoSuchElementException();
    }

    public long sumOfInt(IntFunction\<? super V> function)
    {
        return 0L;
    }

    public double sumOfFloat(FloatFunction\<? super V> function)
    {
        return 0.0;
    }

    public long sumOfLong(LongFunction\<? super V> function)
    {
        return 0L;
    }

    public double sumOfDouble(DoubleFunction\<? super V> function)
    {
        return 0.0;
    }

    public \<V1> ImmutableObjectLongMap\<V1> sumByInt(Function\<? super V, ? extends V1> groupBy, IntFunction\<? super V> function)
    {
        return ObjectLongMaps.immutable.empty();
    }

    public \<V1> ImmutableObjectDoubleMap\<V1> sumByFloat(Function\<? super V, ? extends V1> groupBy, FloatFunction\<? super V> function)
    {
        return ObjectDoubleMaps.immutable.empty();
    }

    public \<V1> ImmutableObjectLongMap\<V1> sumByLong(Function\<? super V, ? extends V1> groupBy, LongFunction\<? super V> function)
    {
        return ObjectLongMaps.immutable.empty();
    }

    public \<V1> ImmutableObjectDoubleMap\<V1> sumByDouble(Function\<? super V, ? extends V1> groupBy, DoubleFunction\<? super V> function)
    {
        return ObjectDoubleMaps.immutable.empty();
    }

    public Mutable<name>Set keySet()
    {
        return Unmodifiable<name>Set.of(<name>HashSet.newSetWith());
    }

    public Collection\<V> values()
    {
        return Lists.immutable.\<V>of().castToList();
    }

    public Lazy<name>Iterable keysView()
    {
        return Lazy<name>Iterate.empty();
    }

    public RichIterable\<<name>ObjectPair\<V>\> keyValuesView()
    {
        return LazyIterate.empty();
    }

    @Override
    public boolean equals(Object obj)
    {
        if (obj == this)
        {
            return true;
        }
        if (!(obj instanceof <name>ObjectMap))
        {
            return false;
        }
        <name>ObjectMap\<V> map = (<name>ObjectMap\<V>) obj;
        return map.isEmpty();
    }

    @Override
    public int hashCode()
    {
        return 0;
    }

    @Override
    public String toString()
    {
        return "{}";
    }

    public String makeString()
    {
        return "";
    }

    public String makeString(String separator)
    {
        return "";
    }

    public String makeString(String start, String separator, String end)
    {
        return start + end;
    }

    public void appendString(Appendable appendable)
    {
    }

    public void appendString(Appendable appendable, String separator)
    {
    }

    public void appendString(Appendable appendable, String start, String separator, String end)
    {
        try
        {
            appendable.append(start);
            appendable.append(end);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
    }

    public \<VV> ImmutableBagMultimap\<VV, V> groupBy(Function\<? super V, ? extends VV> function)
    {
        return Multimaps.immutable.bag.empty();
    }

    public \<VV, R extends MutableMultimap\<VV, V>\> R groupBy(Function\<? super V, ? extends VV> function, R target)
    {
        return target;
    }

    public \<VV> ImmutableBagMultimap\<VV, V> groupByEach(Function\<? super V, ? extends Iterable\<VV>\> function)
    {
        return Multimaps.immutable.bag.empty();
    }

    public \<VV, R extends MutableMultimap\<VV, V>\> R groupByEach(Function\<? super V, ? extends Iterable\<VV>\> function, R target)
    {
        return target;
    }

    public \<VV> ImmutableMap\<VV, V> groupByUniqueKey(Function\<? super V, ? extends VV> function)
    {
        return Maps.immutable.empty();
    }

    public \<VV, R extends MutableMap\<VV, V>\> R groupByUniqueKey(Function\<? super V, ? extends VV> function, R target)
    {
        return target;
    }

    public \<S> ImmutableBag\<Pair\<V, S>\> zip(Iterable\<S> that)
    {
        return Bags.immutable.empty();
    }

    public \<S, R extends Collection\<Pair\<V, S>\>> R zip(Iterable\<S> that, R target)
    {
        return target;
    }

    public ImmutableSet\<Pair\<V, Integer>\> zipWithIndex()
    {
        return Sets.immutable.empty();
    }

    public \<R extends Collection\<Pair\<V, Integer>\>> R zipWithIndex(R target)
    {
        return target;
    }

    public RichIterable\<RichIterable\<V>\> chunk(int size)
    {
        return Lists.immutable.of();
    }

    public \<K, VV> ImmutableMap\<K, VV> aggregateInPlaceBy(Function\<? super V, ? extends K> groupBy, Function0\<? extends VV> zeroValueFactory, Procedure2\<? super VV, ? super V> mutatingAggregator)
    {
        return Maps.immutable.empty();
    }

    public \<VV extends Comparable\<? super VV>\> V maxBy(Function\<? super V, ? extends VV> function)
    {
        throw new NoSuchElementException();
    }

    public \<VV extends Comparable\<? super VV>\> V minBy(Function\<? super V, ? extends VV> function)
    {
        throw new NoSuchElementException();
    }

    public \<VV extends Comparable\<? super VV>\> MutableSortedSet\<V> toSortedSetBy(Function\<? super V, ? extends VV> function)
    {
        return SortedSets.mutable.of();
    }

    public \<VV extends Comparable\<? super VV>\> MutableList\<V> toSortedListBy(Function\<? super V, ? extends VV> function)
    {
        return Lists.mutable.of();
    }

    public \<VV, R extends Collection\<VV>\> R flatCollect(Function\<? super V, ? extends Iterable\<VV>\> function, R target)
    {
        return target;
    }

    public \<VV, R extends Collection\<VV>\> R collectIf(Predicate\<? super V> predicate, Function\<? super V, ? extends VV> function, R target)
    {
        return target;
    }

    public \<K, VV> ImmutableMap\<K, VV> aggregateBy(Function\<? super V, ? extends K> groupBy, Function0\<? extends VV> zeroValueFactory, Function2\<? super VV, ? super V, ? extends VV> nonMutatingAggregator)
    {
        return Maps.immutable.empty();
    }

    public \<P, VV, R extends Collection\<VV>\> R collectWith(Function2\<? super V, ? super P, ? extends VV> function, P parameter, R targetCollection)
    {
        return targetCollection;
    }

    public \<VV, R extends Collection\<VV>\> R collect(Function\<? super V, ? extends VV> function, R target)
    {
        return target;
    }

    public Immutable<name>ObjectMap\<V> newWithKeyValue(<type> key, V value)
    {
        <name>ObjectHashMap\<V> map = new <name>ObjectHashMap\<V>();
        map.put(key, value);
        return map.toImmutable();
    }

    public Immutable<name>ObjectMap\<V> newWithoutKey(<type> key)
    {
        return this;
    }

    public Immutable<name>ObjectMap\<V> newWithoutAllKeys(<name>Iterable keys)
    {
        return this;
    }

    public void forEach(Procedure\<? super V> procedure)
    {
    }

    public void each(Procedure\<? super V> procedure)
    {
    }

    public void forEachWithIndex(ObjectIntProcedure\<? super V> objectIntProcedure)
    {
    }

    public \<P> void forEachWith(Procedure2\<? super V, ? super P> procedure, P parameter)
    {
    }

    public Iterator\<V> iterator()
    {
        return new InternalIterator();
    }

    private class InternalIterator implements Iterator\<V>
    {
        public boolean hasNext()
        {
            return false;
        }

        public V next()
        {
            throw new NoSuchElementException();
        }

        public void remove()
        {
            throw new UnsupportedOperationException("Cannot call remove() on " + this.getClass().getSimpleName());
        }
    }
}

>>