Here you can find the source of isNotEmptyException(Collection collection)
public static void isNotEmptyException(Collection collection)
//package com.java2s; /* // w w w.j a v a 2 s . c o m * Copyright 2014 Topeka Labs. * * 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. */ import java.util.Collection; public class Main { public static void isNotEmptyException(Collection collection) { if (!collection.isEmpty()) { throw new IllegalArgumentException("The given collection cannot be non-empty."); } } public static void isNotEmptyException(Collection collection, String collectionName) { if (!collection.isEmpty()) { throw new IllegalArgumentException("The given collection " + collectionName + " cannot be non-empty."); } } }