--- a/jdk/src/share/classes/java/util/stream/Stream.java	Mon Apr 29 18:12:28 2013 +0100
+++ b/jdk/src/share/classes/java/util/stream/Stream.java	Sat Apr 20 18:53:26 2013 -0400
@@ -24,8 +24,13 @@
  */
 package java.util.stream;
 
+import java.util.Arrays;
 import java.util.Comparator;
+import java.util.Iterator;
+import java.util.Objects;
 import java.util.Optional;
+import java.util.Spliterator;
+import java.util.Spliterators;
 import java.util.function.BiConsumer;
 import java.util.function.BiFunction;
 import java.util.function.BinaryOperator;
@@ -37,6 +42,7 @@
 import java.util.function.ToDoubleFunction;
 import java.util.function.ToIntFunction;
 import java.util.function.ToLongFunction;
+import java.util.function.UnaryOperator;
 
 // @@@ Specification to-do list @@@
 // - Describe the difference between sequential and parallel streams
@@ -779,4 +785,109 @@
      * @see #findFirst()
      */
     Optional<T> findAny();
+
+    // Static factories
+
+    /**
+     * Returns a builder for a {@code Stream}.
+     *
+     * @param <T> type of elements
+     * @return a stream builder
+     */
+    public static<T> StreamBuilder<T> builder() {
+        return new Streams.StreamBuilderImpl<>();
+    }
+
+    /**
+     * Returns an empty sequential {@code Stream}.
+     *
+     * @param <T> the type of stream elements
+     * @return an empty sequential stream
+     */
+    public static<T> Stream<T> empty() {
+        return StreamSupport.stream(Spliterators.<T>emptySpliterator());
+    }
+
+    /**
+     * Returns a sequential {@code Stream} containing a single element.
+     *
+     * @param t the single element
+     * @param <T> the type of stream elements
+     * @return a singleton sequential stream
+     */
+    public static<T> Stream<T> of(T t) {
+        return StreamSupport.stream(new Streams.StreamBuilderImpl<>(t));
+    }
+
+    /**
+     * Returns a sequential stream whose elements are the specified values.
+     *
+     * @param <T> the type of stream elements
+     * @param values the elements of the new stream
+     * @return the new stream
+     */
+    @SafeVarargs
+    public static<T> Stream<T> of(T... values) {
+        return Arrays.stream(values);
+    }
+
+    /**
+     * Returns an infinite sequential {@code Stream} produced by iterative
+     * application of a function {@code f} to an initial element {@code seed},
+     * producing a {@code Stream} consisting of {@code seed}, {@code f(seed)},
+     * {@code f(f(seed))}, etc.
+     *
+     * <p>The first element (position {@code 0}) in the {@code Stream} will be
+     * the provided {@code seed}.  For {@code n > 0}, the element at position
+     * {@code n}, will be the result of applying the function {@code f} to the
+     * element at position {@code n - 1}.
+     *
+     * @param <T> the type of stream elements
+     * @param seed the initial element
+     * @param f a function to be applied to to the previous element to produce
+     *          a new element
+     * @return a new sequential {@code Stream}
+     */
+    public static<T> Stream<T> iterate(final T seed, final UnaryOperator<T> f) {
+        Objects.requireNonNull(f);
+        final Iterator<T> iterator = new Iterator<T>() {
+            @SuppressWarnings("unchecked")
+            T t = (T) Streams.NONE;
+
+            @Override
+            public boolean hasNext() {
+                return true;
+            }
+
+            @Override
+            public T next() {
+                return t = (t == Streams.NONE) ? seed : f.apply(t);
+            }
+        };
+        return StreamSupport.stream(Spliterators.spliteratorUnknownSize(
+                iterator,
+                Spliterator.ORDERED | Spliterator.IMMUTABLE));
+    }
+
+    /**
+     * Returns a sequential {@code Stream} where each element is
+     * generated by a {@code Supplier}.  This is suitable for generating
+     * constant streams, streams of random elements, etc.
+     *
+     * @param <T> the type of stream elements
+     * @param s the {@code Supplier} of generated elements
+     * @return a new sequential {@code Stream}
+     */
+    public static<T> Stream<T> generate(Supplier<T> s) {
+        Objects.requireNonNull(s);
+        return StreamSupport.stream(Spliterators.spliteratorUnknownSize(
+                new Iterator<T>() {
+                    @Override
+                    public boolean hasNext() { return true; }
+
+                    @Override
+                    public T next() { return s.get(); }
+                },
+                Spliterator.ORDERED | Spliterator.IMMUTABLE));
+    }
 }