| /* |
| * Copyright (c) 2003, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.jvmti.ClassFileLoadHook; |
| |
| import java.io.*; |
| import java.lang.reflect.*; |
| |
| import nsk.share.*; |
| import nsk.share.jvmti.*; |
| |
| /** |
| * Debuggee class of JVMTI test. |
| */ |
| public class classfloadhk006 extends DebugeeClass { |
| |
| /** Load native library if required. */ |
| static { |
| System.loadLibrary("classfloadhk006"); |
| } |
| |
| /** Run test from command line. */ |
| public static void main(String argv[]) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| // JCK-compatible exit |
| System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); |
| } |
| |
| /** Run test from JCK-compatible environment. */ |
| public static int run(String argv[], PrintStream out) { |
| return new classfloadhk006().runIt(argv, out); |
| } |
| |
| /* =================================================================== */ |
| |
| /* constant names */ |
| public static final String PACKAGE_NAME = "nsk.jvmti.ClassFileLoadHook"; |
| public static final String TESTED_CLASS_NAME = PACKAGE_NAME + ".classfloadhk006r"; |
| |
| /* scaffold objects */ |
| ArgumentHandler argHandler = null; |
| Log log = null; |
| long timeout = 0; |
| int status = Consts.TEST_PASSED; |
| |
| /* bytecode of redefined class */ |
| public static byte redefClassBytes[] = null; |
| |
| /* tested class to de redefined */ |
| public static Class<?> testedClass = null; |
| |
| /* tested method name */ |
| public static final String TESTED_METHOD_NAME = "testedStaticMethod"; |
| |
| /* possible values returned by tested method */ |
| public static final long ORIG_VALUE = 20; |
| public static final long NEW_VALUE = 12; |
| |
| /** Run debuggee code. */ |
| public int runIt(String argv[], PrintStream out) { |
| argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds |
| |
| String args[] = argHandler.getArguments(); |
| if (args.length <= 0) { |
| throw new Failure("Path for tested class file to load not specified"); |
| } |
| |
| String location = args[0]; |
| String redefPath = location + File.separator + "newclass"; |
| log.display("Using path to redefined class: \n\t" + redefPath); |
| |
| log.display("Reading redefined bytecode of tested class: \n\t" + TESTED_CLASS_NAME); |
| try { |
| redefClassBytes = readBytes(redefPath, TESTED_CLASS_NAME); |
| } catch (IOException e) { |
| throw new Failure("IOException in reading redefined bytecode of tested class file:\n\t" + e); |
| } |
| |
| try { |
| log.display("Loading original tested class: " + TESTED_CLASS_NAME); |
| testedClass = Class.forName(TESTED_CLASS_NAME); |
| } catch (ClassNotFoundException e) { |
| throw new Failure("Tested class not found: \n\t" + e); |
| } |
| |
| log.display("Sync: tested class loaded"); |
| status = checkStatus(status); |
| |
| log.display("Checking if the tested class was actually redefined"); |
| try { |
| Method meth = testedClass.getMethod(TESTED_METHOD_NAME, new Class[0]); |
| Object res = meth.invoke(null, new Object[0]); |
| if (!(res instanceof Long)) { |
| log.complain("Tested method of redefined class retured not Long value: " + res); |
| log.complain("The tested class was redefined incorrectly!"); |
| status = Consts.TEST_FAILED; |
| } else { |
| long value = ((Long)res).longValue(); |
| log.display("Tested method of redefined class returned value: " + value); |
| |
| if (value == ORIG_VALUE) { |
| log.complain("Tested method of redefined class returned original value: " + value); |
| log.complain("The tested class was not redefined!"); |
| status = Consts.TEST_FAILED; |
| } else if (value != NEW_VALUE) { |
| log.complain("Tested method of redefined class returned unexpected value: " + value); |
| log.complain("The tested class was redefined incorrectly!"); |
| status = Consts.TEST_FAILED; |
| } else { |
| log.display("Tested method of redefined class returned expected new value: " + value); |
| log.display("The tested class was redefined correctly!"); |
| } |
| } |
| } catch (NoSuchMethodException e) { |
| log.complain("No tested method found in redefined class:\n\t" + e); |
| status = Consts.TEST_FAILED; |
| } catch (Exception e) { |
| log.complain("Exception in invoking method of redefined class:\n\t" + e); |
| status = Consts.TEST_FAILED; |
| } |
| |
| return status; |
| } |
| |
| /** Read classfile for specified path and class name. */ |
| public static byte[] readBytes(String path, String classname) throws IOException { |
| String filename = path + File.separator |
| + classname.replace('.', File.separatorChar) + ".class"; |
| FileInputStream in = new FileInputStream(filename); |
| byte[] bytes = new byte[in.available()]; |
| in.read(bytes); |
| in.close(); |
| return bytes; |
| } |
| } |