Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/runtime/RedefineTests/RedefineDoubleDelete.java
test/runtime/RedefineTests/RedefineDoubleDelete.java
- changeset 9748
- 628176d22495
- child 9754
- 4170228e11e6
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| 9747:760b28d87178 | 9748:628176d22495 |
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| 1 /* | |
| 2 * Copyright (c) 2017, 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 8178870 | |
| 27 * @summary Redefine class with CFLH twice to test deleting the cached_class_file | |
| 28 */ | |
| 29 | |
| 30 public class RedefineDoubleDelete { | |
| 31 | |
| 32 // Class gets a redefinition error because it adds a data member | |
| 33 public static String newB = | |
| 34 "class RedefineDoubleDelete$B {" + | |
| 35 " int count1 = 0;" + | |
| 36 "}"; | |
| 37 | |
| 38 public static String newerB = | |
| 39 "class RedefineDoubleDelete$B { " + | |
| 40 " int faa() { System.out.println(\"baa\"); return 2; }" + | |
| 41 "}"; | |
| 42 | |
| 43 // The ClassFileLoadHook for this class turns foo into faa and prints out faa. | |
| 44 static class B { | |
| 45 int faa() { System.out.println("foo"); return 1; } | |
| 46 } | |
| 47 | |
| 48 public static void main(String args[]) throws Exception { | |
| 49 | |
| 50 B b = new B(); | |
| 51 int val = b.faa(); | |
| 52 if (val != 1) { | |
| 53 throw new RuntimeException("return value wrong " + val); | |
| 54 } | |
| 55 | |
| 56 // Redefine B twice to get cached_class_file in both B scratch classes | |
| 57 try { | |
| 58 RedefineClassHelper.redefineClass(B.class, newB); | |
| 59 } catch (java.lang.UnsupportedOperationException e) { | |
| 60 // this is expected | |
| 61 } | |
| 62 try { | |
| 63 RedefineClassHelper.redefineClass(B.class, newB); | |
| 64 } catch (java.lang.UnsupportedOperationException e) { | |
| 65 // this is expected | |
| 66 } | |
| 67 | |
| 68 // Do a full GC. | |
| 69 System.gc(); | |
| 70 | |
| 71 // Redefine with a compatible class | |
| 72 RedefineClassHelper.redefineClass(B.class, newerB); | |
| 73 val = b.faa(); | |
| 74 if (val != 2) { | |
| 75 throw new RuntimeException("return value wrong " + val); | |
| 76 } | |
| 77 | |
| 78 // Do another full GC to clean things up. | |
| 79 System.gc(); | |
| 80 } | |
| 81 } |
