| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.maven.internal.impl; |
| |
| class Utils { |
| static <T> T nonNull(T t) { |
| if (t == null) { |
| throw new IllegalArgumentException(); |
| } |
| return t; |
| } |
| |
| static <T> T nonNull(T t, String message) { |
| if (t == null) { |
| throw new IllegalArgumentException(message); |
| } |
| return t; |
| } |
| |
| static <T> T cast(Class<T> clazz, Object o, String message) { |
| if (!clazz.isInstance(o)) { |
| throw new IllegalArgumentException(message); |
| } |
| return clazz.cast(o); |
| } |
| } |