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annotate test/compiler/6663621/IVTest.java @ 177:2a8ec427fbe1

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6706604: Copyright headers need to be changed to GPL. Summary: Update the copyrights Reviewed-by: ohair
author kamg
date Thu, 29 May 2008 14:06:30 -0400
parents f705f25597eb
children d1605aabd0a1
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1 /*
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2 * Copyright 1997-2002 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 /**
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26 * @test
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27 * @bug 6663621
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28 * @summary JVM crashes while trying to execute api/java_security/Signature/SignatureTests.html#initSign tests.
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29 */
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30
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31 public class IVTest {
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32 static int paddedSize;
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33
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34 static void padV15(byte[] padded) {
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35 int psSize = padded.length;
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36 int k = 0;
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37 while (psSize-- > 0) {
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38 padded[k++] = (byte)0xff;
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39 }
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40 }
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41
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42 static void padV15_2(int paddedSize) {
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43 byte[] padded = new byte[paddedSize];
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44 int psSize = padded.length;
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45 int k = 0;
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46 while (psSize-- > 0) {
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47 padded[k++] = (byte)0xff;
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48 }
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49 }
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50
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51 static void padV15_3() {
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52 byte[] padded = new byte[paddedSize];
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53 int psSize = padded.length;
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54 int k = 0;
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55 while (psSize-- > 0) {
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56 padded[k++] = (byte)0xff;
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57 }
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58 }
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59
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60 static void padV15_4() {
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61 byte[] padded = new byte[paddedSize];
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62 int psSize = padded.length;
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63 for (int k = 0;psSize > 0; psSize--) {
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64 int i = padded.length - psSize;
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65 padded[i] = (byte)0xff;
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66 }
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67 }
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68
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69 static void padV15_5() {
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70 byte[] padded = new byte[paddedSize];
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71 int psSize = padded.length;
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72 int k = psSize - 1;
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73 for (int i = 0; i < psSize; i++) {
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74 padded[k--] = (byte)0xff;
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75 }
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76 }
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78 public static void main(String argv[]) {
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79 int bounds = 1024;
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80 int lim = 500000;
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81 long start = System.currentTimeMillis();
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82 for (int j = 0; j < lim; j++) {
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83 paddedSize = j % bounds;
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84 padV15(new byte[paddedSize]);
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85 }
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86 long end = System.currentTimeMillis();
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87 System.out.println(end - start);
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88 start = System.currentTimeMillis();
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89 for (int j = 0; j < lim; j++) {
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90 paddedSize = j % bounds;
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91 padV15_2(paddedSize);
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92 }
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93 end = System.currentTimeMillis();
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94 System.out.println(end - start);
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95 start = System.currentTimeMillis();
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96 for (int j = 0; j < lim; j++) {
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97 paddedSize = j % bounds;
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98 padV15_3();
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99 }
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100 end = System.currentTimeMillis();
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101 System.out.println(end - start);
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102 start = System.currentTimeMillis();
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103 for (int j = 0; j < lim; j++) {
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104 paddedSize = j % bounds;
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105 padV15_4();
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106 }
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107 end = System.currentTimeMillis();
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108 System.out.println(end - start);
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109 start = System.currentTimeMillis();
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110 for (int j = 0; j < lim; j++) {
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111 paddedSize = j % bounds;
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112 padV15_5();
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113 }
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114 end = System.currentTimeMillis();
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115 System.out.println(end - start);
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116 }
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117 }