/* * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * * @summary converted from VM Testbase nsk/jvmti/RedefineClasses/redefclass029. * VM Testbase keywords: [quick, jpda, jvmti, noras, redefine] * VM Testbase readme: * DESCRIPTION * The test exercises that the JVMTI function RedefineClasses() * enable to redefine a static inner (nested) class properly. * Redefiniton is performed in asynchronous manner from a separate * thread when the VM is provoked to switch into compiled mode. * The test works as follows. Two threads are started: java thread * executing a nested class to be redefined, and native one executing * an agent code. Then the nested class method 'redefclass029HotMethod()' * is provoked to be compiled (optimized), and thus the JVMTI event * 'CompiledMethodLoad' should be sent. After that, the agent redefines * the nested class. Different kinds of outer fields are accessed from * executing methods in both versions of the nested class. * Upon the redefinition, the main test thread verifies via the outer * fields values that the nested method 'run()' having an active stack * frame stays obsolete but the other nested methods have been redefined. * It also verifies that the outer class is still can access the nested * class fields after the redefinition. * COMMENTS * * @library /vmTestbase * /test/lib * @build nsk.jvmti.RedefineClasses.redefclass029 * * @comment compile newclassXX to bin/newclassXX * @run driver nsk.share.ExtraClassesBuilder * newclass * * @run main/othervm/native * -XX:CompileThreshold=1000 * -XX:-TieredCompilation * -agentlib:redefclass029=-waittime=5 * nsk.jvmti.RedefineClasses.redefclass029 * 5000 ./bin */