J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @bug 4100814 |
| 26 | * @summary Make sure you can't create an array of dimension > 256. |
| 27 | */ |
| 28 | |
| 29 | import java.lang.reflect.Array; |
| 30 | |
| 31 | public class ExceedMaxDim { |
| 32 | |
| 33 | public static void main(String[] args) throws Exception { |
| 34 | newInstanceOne(); |
| 35 | newInstanceMulti(); |
| 36 | zeroDimension(); |
| 37 | } |
| 38 | |
| 39 | private static void newInstanceOne() throws Exception { |
| 40 | Object o = getArrayOf256Dimensions(); |
| 41 | try { |
| 42 | o = Array.newInstance(o.getClass(), 1); |
| 43 | } catch (IllegalArgumentException iae) { |
| 44 | System.out.println("success: newInstanceOne test"); |
| 45 | return; |
| 46 | } |
| 47 | throw new Exception("NewArray allowed dimensions > MAXDIM"); |
| 48 | } |
| 49 | |
| 50 | private static void newInstanceMulti() throws Exception { |
| 51 | Object o = getArrayOf256Dimensions(); |
| 52 | try { |
| 53 | o = Array.newInstance(o.getClass(), new int[] { 1, 1 }); |
| 54 | o = Array.newInstance(o.getClass(), new int[] { 1 }); |
| 55 | } catch (IllegalArgumentException iae) { |
| 56 | System.out.println("success: newInstanceMulti test"); |
| 57 | return; |
| 58 | } |
| 59 | throw new Exception("MultiNewArray allowed dimensions > MAXDIM"); |
| 60 | } |
| 61 | |
| 62 | private static void zeroDimension() throws Exception { |
| 63 | try { |
| 64 | Array.newInstance(Integer.TYPE, new int[0]); |
| 65 | } catch (IllegalArgumentException iae) { |
| 66 | System.out.println("success: zeroDimension test"); |
| 67 | return; |
| 68 | } |
| 69 | throw new Exception("MultiNewArray allowed dimension == 0"); |
| 70 | } |
| 71 | |
| 72 | private static Object getArrayOf256Dimensions() { |
| 73 | /* 1 dimension */ |
| 74 | Object o = Array.newInstance(Integer.TYPE, 0); |
| 75 | |
| 76 | /* 254 more dimension. */ |
| 77 | for (int i = 1; i <= 254; i++) { |
| 78 | o = Array.newInstance(o.getClass(), 1); |
| 79 | } |
| 80 | |
| 81 | /* 255 in all. */ |
| 82 | return o; |
| 83 | } |
| 84 | } |