Java tutorial
//package com.java2s; /* * Copyright 2015 Soo [154014022@qq.com | sootracker@gmail.com] * * Licensed 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. */ public class Main { /**Throw NullPointerException if the particular object is null * @param object The particular object * @see #notNull(Object, String) */ public static void notNull(Object object) { notNull(object, null); } /**Throw NullPointerException if the particular object is null * @param object The particular object * @param message The message which to be wrapped into NullPointerException */ public static void notNull(Object object, String message) { if (object == null) { throw new NullPointerException(message == null ? "" : message); } } }