Thu, 26 Sep 2019 06:56:38 +0100
8231463: Fix runtime/RedefineTests/RedefineDoubleDelete.java test in 8u
Reviewed-by: andrew
zgu@9748 | 1 | /* |
zgu@9748 | 2 | * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
zgu@9748 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
zgu@9748 | 4 | * |
zgu@9748 | 5 | * This code is free software; you can redistribute it and/or modify it |
zgu@9748 | 6 | * under the terms of the GNU General Public License version 2 only, as |
zgu@9748 | 7 | * published by the Free Software Foundation. |
zgu@9748 | 8 | * |
zgu@9748 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
zgu@9748 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
zgu@9748 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
zgu@9748 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
zgu@9748 | 13 | * accompanied this code). |
zgu@9748 | 14 | * |
zgu@9748 | 15 | * You should have received a copy of the GNU General Public License version |
zgu@9748 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
zgu@9748 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
zgu@9748 | 18 | * |
zgu@9748 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
zgu@9748 | 20 | * or visit www.oracle.com if you need additional information or have any |
zgu@9748 | 21 | * questions. |
zgu@9748 | 22 | */ |
zgu@9748 | 23 | |
zgu@9748 | 24 | /* |
zgu@9748 | 25 | * @test |
zgu@9748 | 26 | * @bug 8178870 |
zgu@9754 | 27 | * @library /testlibrary |
zgu@9748 | 28 | * @summary Redefine class with CFLH twice to test deleting the cached_class_file |
zgu@9754 | 29 | * @build RedefineClassHelper |
zgu@9754 | 30 | * @run main RedefineClassHelper |
zgu@9754 | 31 | * @run main/othervm -javaagent:redefineagent.jar RedefineDoubleDelete |
zgu@9748 | 32 | */ |
zgu@9748 | 33 | |
zgu@9748 | 34 | public class RedefineDoubleDelete { |
zgu@9748 | 35 | |
zgu@9748 | 36 | // Class gets a redefinition error because it adds a data member |
zgu@9748 | 37 | public static String newB = |
zgu@9748 | 38 | "class RedefineDoubleDelete$B {" + |
zgu@9748 | 39 | " int count1 = 0;" + |
zgu@9748 | 40 | "}"; |
zgu@9748 | 41 | |
zgu@9748 | 42 | public static String newerB = |
zgu@9748 | 43 | "class RedefineDoubleDelete$B { " + |
zgu@9748 | 44 | " int faa() { System.out.println(\"baa\"); return 2; }" + |
zgu@9748 | 45 | "}"; |
zgu@9748 | 46 | |
zgu@9748 | 47 | // The ClassFileLoadHook for this class turns foo into faa and prints out faa. |
zgu@9748 | 48 | static class B { |
zgu@9748 | 49 | int faa() { System.out.println("foo"); return 1; } |
zgu@9748 | 50 | } |
zgu@9748 | 51 | |
zgu@9748 | 52 | public static void main(String args[]) throws Exception { |
zgu@9748 | 53 | |
zgu@9748 | 54 | B b = new B(); |
zgu@9748 | 55 | int val = b.faa(); |
zgu@9748 | 56 | if (val != 1) { |
zgu@9748 | 57 | throw new RuntimeException("return value wrong " + val); |
zgu@9748 | 58 | } |
zgu@9748 | 59 | |
zgu@9748 | 60 | // Redefine B twice to get cached_class_file in both B scratch classes |
zgu@9748 | 61 | try { |
zgu@9748 | 62 | RedefineClassHelper.redefineClass(B.class, newB); |
zgu@9748 | 63 | } catch (java.lang.UnsupportedOperationException e) { |
zgu@9748 | 64 | // this is expected |
zgu@9748 | 65 | } |
zgu@9748 | 66 | try { |
zgu@9748 | 67 | RedefineClassHelper.redefineClass(B.class, newB); |
zgu@9748 | 68 | } catch (java.lang.UnsupportedOperationException e) { |
zgu@9748 | 69 | // this is expected |
zgu@9748 | 70 | } |
zgu@9748 | 71 | |
zgu@9748 | 72 | // Do a full GC. |
zgu@9748 | 73 | System.gc(); |
zgu@9748 | 74 | |
zgu@9748 | 75 | // Redefine with a compatible class |
zgu@9748 | 76 | RedefineClassHelper.redefineClass(B.class, newerB); |
zgu@9748 | 77 | val = b.faa(); |
zgu@9748 | 78 | if (val != 2) { |
zgu@9748 | 79 | throw new RuntimeException("return value wrong " + val); |
zgu@9748 | 80 | } |
zgu@9748 | 81 | |
zgu@9748 | 82 | // Do another full GC to clean things up. |
zgu@9748 | 83 | System.gc(); |
zgu@9748 | 84 | } |
zgu@9748 | 85 | } |