Here you can find the source of assertParamNotNull(Object check, String paramName)
static void assertParamNotNull(Object check, String paramName)
//package com.java2s; /*//from w ww . j av a 2s . c o m * Copyright 2017 Henrik Hegardt * *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 { static void assertParamNotNull(Object check, String paramName) { if (check == null) { throw new IllegalArgumentException(paramName + " is null"); } } }