95bf19563b
Co-authored-by: Alex Buckley <alex.buckley@oracle.com> Co-authored-by: Maurizio Mimadamore <maurizio.mimadamore@oracle.com> Co-authored-by: Mandy Chung <mandy.chung@oracle.com> Co-authored-by: Tobias Hartmann <tobias.hartmann@oracle.com> Co-authored-by: Vlaidmir Ivanov <vladimir.x.ivanov@oracle.com> Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com> Co-authored-by: Vladimir Kozlov <vladimir.kozlov@oracle.com> Co-authored-by: John Rose <john.r.rose@oracle.com> Co-authored-by: Daniel Smith <daniel.smith@oracle.com> Co-authored-by: Serguei Spitsyn <serguei.spitsyn@oracle.com> Co-authored-by: Kumar Srinivasan <kumardotsrinivasan@gmail.com> Co-authored-by: Boris Ulasevich <boris.ulasevich@bell-sw.com> Reviewed-by: alanb, psandoz, mchung, coleenp, acorn, mcimadamore, forax, jlahoda, sspitsyn, abuckley
92 lines
3.3 KiB
Java
92 lines
3.3 KiB
Java
/*
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* Copyright (c) 2017, 2018, 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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* @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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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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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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