9583e3657e
Co-authored-by: Ron Pressler <rpressler@openjdk.org> Co-authored-by: Alan Bateman <alanb@openjdk.org> Co-authored-by: Erik Österlund <eosterlund@openjdk.org> Co-authored-by: Andrew Haley <aph@openjdk.org> Co-authored-by: Rickard Bäckman <rbackman@openjdk.org> Co-authored-by: Markus Grönlund <mgronlun@openjdk.org> Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org> Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org> Co-authored-by: Chris Plummer <cjplummer@openjdk.org> Co-authored-by: Coleen Phillimore <coleenp@openjdk.org> Co-authored-by: Robbin Ehn <rehn@openjdk.org> Co-authored-by: Stefan Karlsson <stefank@openjdk.org> Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org> Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org> Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
95 lines
3.3 KiB
Java
95 lines
3.3 KiB
Java
/*
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* Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8178870 8010319
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* @summary Redefine class with CFLH twice to test deleting the cached_class_file
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* @requires vm.jvmti
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* @modules java.compiler
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* java.instrument
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* jdk.jartool/sun.tools.jar
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* @run main RedefineClassHelper
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* @run main/othervm/native -Xlog:redefine+class+load+exceptions -agentlib:RedefineDoubleDelete -javaagent:redefineagent.jar RedefineDoubleDelete
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*/
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// package access top-level class to avoid problem with RedefineClassHelper
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// and nested types.
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// The ClassFileLoadHook for this class turns foo into faa and prints out faa.
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class RedefineDoubleDelete_B {
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int faa() { System.out.println("foo"); return 1; }
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}
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public class RedefineDoubleDelete {
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// Class gets a redefinition error because it adds a data member
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public static String newB = """
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class RedefineDoubleDelete_B {
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int count1 = 0;
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}
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""";
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public static String newerB = """
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class RedefineDoubleDelete_B {
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int faa() { System.out.println("baa"); return 2; }
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}
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""";
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public static void main(String args[]) throws Exception {
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RedefineDoubleDelete_B b = new RedefineDoubleDelete_B();
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int val = b.faa();
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if (val != 1) {
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throw new RuntimeException("return value wrong " + val);
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}
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// Redefine B twice to get cached_class_file in both B scratch classes
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try {
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RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newB);
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} catch (java.lang.UnsupportedOperationException e) {
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// this is expected
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}
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try {
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RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newB);
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} catch (java.lang.UnsupportedOperationException e) {
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// this is expected
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}
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// Do a full GC.
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System.gc();
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// Redefine with a compatible class
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RedefineClassHelper.redefineClass(RedefineDoubleDelete_B.class, newerB);
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val = b.faa();
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if (val != 2) {
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throw new RuntimeException("return value wrong " + val);
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}
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// Do another full GC to clean things up.
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System.gc();
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}
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}
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