--- /dev/null	2013-01-19 23:30:52.572866804 -0800
+++ new/src/share/classes/java/util/stream/DelegatingStream.java	2013-01-25 23:38:55.715458085 -0800
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package java.util.stream;
+
+import java.util.Comparator;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Spliterator;
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+import java.util.function.BinaryOperator;
+import java.util.function.BooleanSupplier;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.IntFunction;
+import java.util.function.Predicate;
+import java.util.function.Supplier;
+import java.util.function.ToDoubleFunction;
+import java.util.function.ToIntFunction;
+import java.util.function.ToLongFunction;
+
+/**
+ * A {@code Stream} implementation that delegate operations to another {@code
+ * Stream}.
+ *
+ * @since 1.8
+ */
+public class DelegatingStream<T> implements Stream<T> {
+    final private Stream<T> delegate;
+
+    /**
+     * Construct a {@code Stream} that delegates operations to another {@code
+     * Stream}.
+     *
+     * @param delegate The {@link Stream} that actually performs the operation
+     * @throws NullPointerException if the delegate is null
+     */
+    public DelegatingStream(Stream<T> delegate) {
+        this.delegate = Objects.requireNonNull(delegate);
+    }
+
+    // -- BaseStream methods --
+
+    public Spliterator<T> spliterator() {
+        return delegate.spliterator();
+    }
+
+    public boolean isParallel() {
+        return delegate.isParallel();
+    }
+
+    public int getStreamFlags() {
+        return delegate.getStreamFlags();
+    }
+
+    // -- Stream methods --
+
+    public Stream<T> filter(Predicate<? super T> predicate) {
+        return delegate.filter(predicate);
+    }
+
+    public <R> Stream<R> map(Function<? super T, ? extends R> mapper) {
+        return delegate.map(mapper);
+    }
+
+    public IntStream map(ToIntFunction<? super T> mapper) {
+        return delegate.map(mapper);
+    }
+
+    public LongStream map(ToLongFunction<? super T> mapper) {
+        return delegate.map(mapper);
+    }
+
+    public DoubleStream map(ToDoubleFunction<? super T> mapper) {
+        return delegate.map(mapper);
+    }
+
+    public <R> Stream<R> explode(BiConsumer<Stream.Downstream<R>, ? super T> exploder) {
+        return delegate.explode(exploder);
+    }
+
+    public Stream<T> distinct() {
+        return delegate.distinct();
+    }
+
+    public Stream<T> sorted() {
+        return delegate.sorted();
+    }
+
+    public Stream<T> sorted(Comparator<? super T> comparator) {
+        return delegate.sorted(comparator);
+    }
+
+    public void forEach(Consumer<? super T> consumer) {
+        delegate.forEach(consumer);
+    }
+
+    public void forEachUntil(Consumer<? super T> consumer, BooleanSupplier until) {
+        delegate.forEachUntil(consumer, until);
+    }
+
+    public Stream<T> peek(Consumer<? super T> consumer) {
+        return delegate.peek(consumer);
+    }
+
+    public Stream<T> limit(long maxSize) {
+        return delegate.limit(maxSize);
+    }
+
+    public Stream<T> substream(long startingOffset) {
+        return delegate.substream(startingOffset);
+    }
+
+    public Stream<T> substream(long startingOffset, long endingOffset) {
+        return delegate.substream(startingOffset, endingOffset);
+    }
+
+    public <A> A[] toArray(IntFunction<A[]> generator) {
+        return delegate.toArray(generator);
+    }
+
+    public T reduce(T identity, BinaryOperator<T> reducer) {
+        return delegate.reduce(identity, reducer);
+    }
+
+    public Optional<T> reduce(BinaryOperator<T> reducer) {
+        return delegate.reduce(reducer);
+    }
+
+    public <U> U reduce(U identity, BiFunction<U, ? super T, U> accumulator,
+                        BinaryOperator<U> reducer) {
+        return delegate.reduce(identity, accumulator, reducer);
+    }
+
+    public <R> R collect(Supplier<R> resultFactory,
+                         BiConsumer<R, ? super T> accumulator,
+                         BiConsumer<R, R> reducer) {
+        return delegate.collect(resultFactory, accumulator, reducer);
+    }
+
+    public <R> R collect(Collector<? super T, R> collector) {
+        return delegate.collect(collector);
+    }
+
+    public <R> R collectUnordered(Collector<? super T, R> collector) {
+        return delegate.collectUnordered(collector);
+    }
+
+    public boolean anyMatch(Predicate<? super T> predicate) {
+        return delegate.anyMatch(predicate);
+    }
+
+    public boolean allMatch(Predicate<? super T> predicate) {
+        return delegate.allMatch(predicate);
+    }
+
+    public boolean noneMatch(Predicate<? super T> predicate) {
+        return delegate.noneMatch(predicate);
+    }
+
+    public Optional<T> findFirst() {
+        return delegate.findFirst();
+    }
+
+    public Optional<T> findAny() {
+        return delegate.findAny();
+    }
+
+    public Stream<T> sequential() {
+        return delegate.sequential();
+    }
+
+    public Stream<T> parallel() {
+        return delegate.parallel();
+    }
+}
\ No newline at end of file