Here you can find the source of assertNotNull(String errorMessage, Object... args)
public static void assertNotNull(String errorMessage, Object... args)
//package com.java2s; /*// w ww .j av a 2 s. c om * Copyright (c) 2008 TouK.pl * * 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 { public static void assertNotNull(String errorMessage, Object... args) { if (args == null || args.length == 0) { throw new IllegalArgumentException("Nie podano argumentow do ewaluacji"); } for (Object s : args) { if (s == null) { throw new IllegalArgumentException("Argument nie moze byc nullem"); } } } }