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 java.io.IOException;
29 import java.io.InvalidObjectException;
30 import java.io.ObjectInputStream;
31 import java.io.ObjectOutputStream;
32 import java.io.ObjectStreamException;
33 import java.io.Serializable;
34 import java.util.function.BiFunction;
35 import java.util.function.Function;
36 import java.util.function.Predicate;
37 import java.util.function.UnaryOperator;
38 import jdk.internal.misc.SharedSecrets;
39 import jdk.internal.misc.VM;
40 import jdk.internal.vm.annotation.Stable;
41
42 /**
43 * Container class for immutable collections. Not part of the public API.
44 * Mainly for namespace management and shared infrastructure.
45 *
46 * Serial warnings are suppressed throughout because all implementation
47 * classes use a serial proxy and thus have no need to declare serialVersionUID.
48 */
49 @SuppressWarnings("serial")
50 class ImmutableCollections {
51 /**
52 * A "salt" value used for randomizing iteration order. This is initialized once
53 * and stays constant for the lifetime of the JVM. It need not be truly random, but
54 * it needs to vary sufficiently from one run to the next so that iteration order
55 * will vary between JVM runs.
56 */
57 static final int SALT;
58 static {
|
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 java.io.IOException;
29 import java.io.InvalidObjectException;
30 import java.io.ObjectInputStream;
31 import java.io.ObjectOutputStream;
32 import java.io.ObjectStreamException;
33 import java.io.Serializable;
34 import java.util.function.BiFunction;
35 import java.util.function.Function;
36 import java.util.function.Predicate;
37 import java.util.function.UnaryOperator;
38 import jdk.internal.access.SharedSecrets;
39 import jdk.internal.misc.VM;
40 import jdk.internal.vm.annotation.Stable;
41
42 /**
43 * Container class for immutable collections. Not part of the public API.
44 * Mainly for namespace management and shared infrastructure.
45 *
46 * Serial warnings are suppressed throughout because all implementation
47 * classes use a serial proxy and thus have no need to declare serialVersionUID.
48 */
49 @SuppressWarnings("serial")
50 class ImmutableCollections {
51 /**
52 * A "salt" value used for randomizing iteration order. This is initialized once
53 * and stays constant for the lifetime of the JVM. It need not be truly random, but
54 * it needs to vary sufficiently from one run to the next so that iteration order
55 * will vary between JVM runs.
56 */
57 static final int SALT;
58 static {
|