equal
deleted
inserted
replaced
1 /* |
1 /* |
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. Oracle designates this |
7 * published by the Free Software Foundation. Oracle designates this |
60 |
60 |
61 /** |
61 /** |
62 * Null-friendly comparators |
62 * Null-friendly comparators |
63 */ |
63 */ |
64 static final class NullComparator<T> implements Comparator<T>, Serializable { |
64 static final class NullComparator<T> implements Comparator<T>, Serializable { |
|
65 @java.io.Serial |
65 private static final long serialVersionUID = -7569533591570686392L; |
66 private static final long serialVersionUID = -7569533591570686392L; |
66 private final boolean nullFirst; |
67 private final boolean nullFirst; |
67 // if null, non-null Ts are considered equal |
68 // if null, non-null Ts are considered equal |
|
69 @SuppressWarnings("serial") // Not statically typed as Serializable |
68 private final Comparator<T> real; |
70 private final Comparator<T> real; |
69 |
71 |
70 @SuppressWarnings("unchecked") |
72 @SuppressWarnings("unchecked") |
71 NullComparator(boolean nullFirst, Comparator<? super T> real) { |
73 NullComparator(boolean nullFirst, Comparator<? super T> real) { |
72 this.nullFirst = nullFirst; |
74 this.nullFirst = nullFirst; |