8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.util;
27
28 import jdk.internal.misc.SharedSecrets;
29
30 /**
31 * A specialized {@link Map} implementation for use with enum type keys. All
32 * of the keys in an enum map must come from a single enum type that is
33 * specified, explicitly or implicitly, when the map is created. Enum maps
34 * are represented internally as arrays. This representation is extremely
35 * compact and efficient.
36 *
37 * <p>Enum maps are maintained in the <i>natural order</i> of their keys
38 * (the order in which the enum constants are declared). This is reflected
39 * in the iterators returned by the collections views ({@link #keySet()},
40 * {@link #entrySet()}, and {@link #values()}).
41 *
42 * <p>Iterators returned by the collection views are <i>weakly consistent</i>:
43 * they will never throw {@link ConcurrentModificationException} and they may
44 * or may not show the effects of any modifications to the map that occur while
45 * the iteration is in progress.
46 *
47 * <p>Null keys are not permitted. Attempts to insert a null key will
48 * throw {@link NullPointerException}. Attempts to test for the
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.util;
27
28 import jdk.internal.access.SharedSecrets;
29
30 /**
31 * A specialized {@link Map} implementation for use with enum type keys. All
32 * of the keys in an enum map must come from a single enum type that is
33 * specified, explicitly or implicitly, when the map is created. Enum maps
34 * are represented internally as arrays. This representation is extremely
35 * compact and efficient.
36 *
37 * <p>Enum maps are maintained in the <i>natural order</i> of their keys
38 * (the order in which the enum constants are declared). This is reflected
39 * in the iterators returned by the collections views ({@link #keySet()},
40 * {@link #entrySet()}, and {@link #values()}).
41 *
42 * <p>Iterators returned by the collection views are <i>weakly consistent</i>:
43 * they will never throw {@link ConcurrentModificationException} and they may
44 * or may not show the effects of any modifications to the map that occur while
45 * the iteration is in progress.
46 *
47 * <p>Null keys are not permitted. Attempts to insert a null key will
48 * throw {@link NullPointerException}. Attempts to test for the
|