Objects.java revision 54b6cfa9a9e5b861a9930af873580d6dc20f773c 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.internal.util;
18
19/**
20 * Object utility methods.
21 */
22public class Objects {
23
24    /**
25     * Ensures the given object isn't {@code null}.
26     *
27     * @return the given object
28     * @throws NullPointerException if the object is null
29     */
30    public static <T> T nonNull(T t) {
31        if (t == null) {
32            throw new NullPointerException();
33        }
34        return t;
35    }
36
37    /**
38     * Ensures the given object isn't {@code null}.
39     *
40     * @return the given object
41     * @throws NullPointerException if the object is null
42     */
43    public static <T> T nonNull(T t, String message) {
44        if (t == null) {
45            throw new NullPointerException(message);
46        }
47        return t;
48    }
49}
50