| /* |
| * Copyright (c) 2018, 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 |
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| */ |
| |
| |
| /* |
| * @test |
| * |
| * @summary converted from VM Testbase nsk/jvmti/ClassFileLoadHook/classfloadhk008. |
| * VM Testbase keywords: [quick, jpda, jvmti, noras, redefine] |
| * VM Testbase readme: |
| * DESCRIPTION |
| * This JVMTI test exercises JVMTI event ClassFileLoadHook(). |
| * This test checks if CLASS_FILE_LOAD_HOOK event is received |
| * for class being redefined and the new instrumented bytecode |
| * returned from this event callback will be used for tested |
| * class after redefinition. |
| * The tested class is loaded with default classloader. |
| * This test uses three different bytecodes of the tested class |
| * 'classfloadhk008r' compiled from the different sources. |
| * This directory contains original source of the tested class, |
| * which is used to load class with default loader in debuggee class. |
| * The subdirectory 'newclass' contains redefined class |
| * with changed implementation of methods. |
| * The subdirectory 'newclass01' contains new instrumented class |
| * with one more changed implementation of methods. |
| * The test performs the following checks: |
| * - CLASS_FILE_LOAD_HOOK event callback is invoked and only once |
| * for the tested class upon its redefinition |
| * - pointers to new redefined bytecode and size passed to |
| * the event callback are not NULL |
| * - the new instrumented bytecode is successfully returned |
| * from the event callback |
| * - the new instrumented bytecode of the tested class is actually |
| * used after class redefinition |
| * The debuggee class preliminary loads redefined and instrumented |
| * bytecodes of the tested class into static fields and agent gets |
| * these bytecodes to use them in CLASS_FILE_LOAD_HOOK event callback. |
| * The debuggee loads tested class using default classloader. |
| * The agent enables CLASS_FILE_LOAD_HOOK event and redefines |
| * tested class with the redefined bytecode. |
| * Upon receiving CLASS_FILE_LOAD_HOOK event the agent performs checks |
| * and replaces redefined bytecode with the new instrumented bytecode. |
| * If no CLASS_FILE_LOAD_HOOK events were received, the agent |
| * complains an error. |
| * After tested class has been redefined debuggee uses reflection |
| * API to call static method of this class. If method returns value |
| * according to the new instrumented implementation, then the new |
| * bytecode was actually used for creation of tested class. Otherwise, |
| * if method returns value according to the original or redefined |
| * implementation, or any unexpected value, then the test complains |
| * an error. |
| * The agent does not deallocate memory used for instrumented |
| * bytecode, because this is VM responsibility. |
| * If all checks are successfull, the test passes with exit code 95, |
| * otherwise the test fails with exit code 97. |
| * COMMENTS |
| * Modified due to fix of the rfe |
| * 5010823 TEST_RFE: some JVMTI tests use the replaced capability |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @build nsk.jvmti.ClassFileLoadHook.classfloadhk008 |
| * nsk.jvmti.ClassFileLoadHook.classfloadhk008r |
| * |
| * @comment compile newclassXX to bin/newclassXX |
| * @run driver nsk.share.ExtraClassesBuilder |
| * newclass newclass01 |
| * |
| * @run main/othervm/native |
| * -agentlib:classfloadhk008=-waittime=5 |
| * nsk.jvmti.ClassFileLoadHook.classfloadhk008 |
| * ./bin |
| */ |
| |
