1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 6992121 27 * @summary Test the ArrayList.ensureCapacity() and Vector.ensureCapacity 28 * method with negative minimumCapacity input argument. 29 */ 30 31 package test.java.util.ArrayList; 32 33 import java.util.ArrayList; 34 import java.util.Vector; 35 36 public class EnsureCapacity { 37 main(String[] args)38 public static void main(String[] args) { 39 testArrayList(); 40 testVector(); 41 } 42 checkCapacity(int before, int after)43 private static void checkCapacity(int before, int after) { 44 if (before != after) { 45 throw new RuntimeException("capacity is expected to be unchanged: " + 46 "before=" + before + " after=" + after); 47 } 48 } 49 testArrayList()50 private static void testArrayList() { 51 ArrayList<String> al = new ArrayList<String>(); 52 al.add("abc"); 53 al.ensureCapacity(Integer.MIN_VALUE); 54 55 // there is no method to query the capacity of ArrayList 56 // so before and after capacity are not checked 57 } 58 testVector()59 private static void testVector() { 60 Vector<String> vector = new Vector<String>(); 61 vector.add("abc"); 62 63 int cap = vector.capacity(); 64 vector.ensureCapacity(Integer.MIN_VALUE); 65 checkCapacity(cap, vector.capacity()); 66 } 67 } 68