1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package com.github.dexecutor.executor.support;
19
20 /**
21 * Support class to check for preconditions
22 *
23 * @author Nadeem Mohammad
24 *
25 */
26 public final class Preconditions {
27
28 private Preconditions() {
29
30 }
31
32 /**
33 * Checks if the reference is null, and if that is the case throws IllegalArgumentException
34 * @param reference
35 * @param msg
36 * @throws IllegalArgumentException if the reference is null
37 */
38 public static <T> void checkNotNull(T reference, String msg) {
39 if (reference == null) {
40 throw new IllegalArgumentException(msg);
41 }
42 }
43 }