J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2004 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 | /** |
| 25 | * @test |
| 26 | * @bug 4920005 4882798 |
| 27 | * @summary make sure redefineClasses throws NullPointerException in the right places. |
| 28 | * @author Robert Field as modified from the code of Gabriel Adauto, Wily Technology |
| 29 | * |
| 30 | * @run build NullRedefineClassesTests |
| 31 | * @run shell MakeJAR.sh redefineAgent |
| 32 | * @run main/othervm -javaagent:redefineAgent.jar NullRedefineClassesTests NullRedefineClassesTests |
| 33 | */ |
| 34 | |
| 35 | import java.lang.instrument.ClassDefinition; |
| 36 | import java.lang.instrument.UnmodifiableClassException; |
| 37 | |
| 38 | public class |
| 39 | NullRedefineClassesTests |
| 40 | extends ASimpleInstrumentationTestCase |
| 41 | { |
| 42 | |
| 43 | /** |
| 44 | * Constructor for NullRedefineClassesTests. |
| 45 | * @param name |
| 46 | */ |
| 47 | public NullRedefineClassesTests(String name) { |
| 48 | super(name); |
| 49 | } |
| 50 | |
| 51 | public static void |
| 52 | main (String[] args) throws Throwable { |
| 53 | ATestCaseScaffold test = new NullRedefineClassesTests(args[0]); |
| 54 | test.runTest(); |
| 55 | } |
| 56 | |
| 57 | protected final void |
| 58 | doRunTest() throws ClassNotFoundException, UnmodifiableClassException { |
| 59 | testNullRedefineClasses(); |
| 60 | } |
| 61 | |
| 62 | |
| 63 | public void |
| 64 | testNullRedefineClasses() throws ClassNotFoundException, UnmodifiableClassException { |
| 65 | boolean caught; |
| 66 | |
| 67 | // Test that a null argument throws NullPointerException |
| 68 | caught = false; |
| 69 | try { |
| 70 | fInst.redefineClasses(null); |
| 71 | } catch (NullPointerException npe) { |
| 72 | caught = true; |
| 73 | } |
| 74 | assertTrue(caught); |
| 75 | |
| 76 | // Test that a null element throws NullPointerException |
| 77 | caught = false; |
| 78 | try { |
| 79 | fInst.redefineClasses(new ClassDefinition[]{ null }); |
| 80 | } catch (NullPointerException npe) { |
| 81 | caught = true; |
| 82 | } |
| 83 | assertTrue(caught); |
| 84 | |
| 85 | // Test that a null element amonst others throws NullPointerException |
| 86 | caught = false; |
| 87 | ClassDefinition cd = new ClassDefinition(DummyClass.class, new byte[] {1, 2, 3}); |
| 88 | try { |
| 89 | fInst.redefineClasses(new ClassDefinition[]{ cd, null }); |
| 90 | } catch (NullPointerException npe) { |
| 91 | caught = true; |
| 92 | } |
| 93 | assertTrue(caught); |
| 94 | |
| 95 | // Test that a null class throws NullPointerException |
| 96 | caught = false; |
| 97 | try { |
| 98 | new ClassDefinition(null, new byte[] {1, 2, 3}); |
| 99 | } catch (NullPointerException npe) { |
| 100 | caught = true; |
| 101 | } |
| 102 | assertTrue(caught); |
| 103 | |
| 104 | // Test that a null byte array throws NullPointerException |
| 105 | caught = false; |
| 106 | try { |
| 107 | new ClassDefinition(DummyClass.class, null); |
| 108 | } catch (NullPointerException npe) { |
| 109 | caught = true; |
| 110 | } |
| 111 | assertTrue(caught); |
| 112 | } |
| 113 | } |