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8068599: Add mutability, serializability, and thread-safety, caveat to all Collectors that do not accept a Collection supplier
authorchegar
Tue, 13 Jan 2015 17:14:51 +0000
changeset 28419 361e3aa27cb5
parent 28418 7593914c0304
child 28420 8fe17d073b54
8068599: Add mutability, serializability, and thread-safety, caveat to all Collectors that do not accept a Collection supplier Reviewed-by: psandoz
jdk/src/java.base/share/classes/java/util/stream/Collectors.java file | annotate | diff | comparison | revisions 
--- a/jdk/src/java.base/share/classes/java/util/stream/Collectors.java	Tue Jan 13 08:58:07 2015 -0800
+++ b/jdk/src/java.base/share/classes/java/util/stream/Collectors.java	Tue Jan 13 17:14:51 2015 +0000
@@ -990,7 +990,7 @@
      * function.
      *
      * <p>There are no guarantees on the type, mutability, or serializability
-     * of the {@code Map} or {@code List} objects returned, or of the
+     * of the {@code ConcurrentMap} or {@code List} objects returned, or of the
      * thread-safety of the {@code List} objects returned.
      * @implSpec
      * This produces a result similar to:
@@ -1028,6 +1028,9 @@
      * produces a result of type {@code D}. The resulting collector produces a
      * {@code Map<K, D>}.
      *
+     * <p>There are no guarantees on the type, mutability, or serializability
+     * of the {@code ConcurrentMap} returned.
+     *
      * <p>For example, to compute the set of last names of people in each city,
      * where the city names are sorted:
      * <pre>{@code
@@ -1143,7 +1146,8 @@
      * {@code Map<Boolean, List<T>>}.
      *
      * There are no guarantees on the type, mutability,
-     * serializability, or thread-safety of the {@code Map} returned.
+     * serializability, or thread-safety of the {@code Map} or {@code List}
+     * returned.
      *
      * @param <T> the type of the input elements
      * @param predicate a predicate used for classifying input elements
@@ -1212,6 +1216,9 @@
      * may have duplicates, use {@link #toMap(Function, Function, BinaryOperator)}
      * instead.
      *
+     * <p>There are no guarantees on the type, mutability, serializability,
+     * or thread-safety of the {@code Map} returned.
+     *
      * @apiNote
      * It is common for either the key or the value to be the input elements.
      * In this case, the utility method
@@ -1271,6 +1278,9 @@
      * the value mapping function is applied to each equal element, and the
      * results are merged using the provided merging function.
      *
+     * <p>There are no guarantees on the type, mutability, serializability,
+     * or thread-safety of the {@code Map} returned.
+     *
      * @apiNote
      * There are multiple ways to deal with collisions between multiple elements
      * mapping to the same key.  The other forms of {@code toMap} simply use
@@ -1382,6 +1392,9 @@
      * may have duplicates, use
      * {@link #toConcurrentMap(Function, Function, BinaryOperator)} instead.
      *
+     * <p>There are no guarantees on the type, mutability, or serializability
+     * of the {@code ConcurrentMap} returned.
+     *
      * @apiNote
      * It is common for either the key or the value to be the input elements.
      * In this case, the utility method
@@ -1436,6 +1449,9 @@
      * the value mapping function is applied to each equal element, and the
      * results are merged using the provided merging function.
      *
+     * <p>There are no guarantees on the type, mutability, or serializability
+     * of the {@code ConcurrentMap} returned.
+     *
      * @apiNote
      * There are multiple ways to deal with collisions between multiple elements
      * mapping to the same key.  The other forms of {@code toConcurrentMap} simply use
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