| /* |
| * Copyright (c) 2004, 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.scenarios.bcinstr.BI01; |
| |
| import java.io.PrintStream; |
| import java.io.FileInputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Field; |
| |
| import nsk.share.Consts; |
| import nsk.share.Log; |
| import nsk.share.Failure; |
| import nsk.share.CustomClassLoader; |
| |
| import nsk.share.jvmti.ArgumentHandler; |
| import nsk.share.jvmti.DebugeeClass; |
| |
| public class bi01t001 extends DebugeeClass { |
| |
| // 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 bi01t001().runIt(argv, out); |
| } |
| |
| /* =================================================================== */ |
| |
| // scaffold objects |
| ArgumentHandler argHandler = null; |
| static Log log = null; |
| Log.Logger logger; |
| int status = Consts.TEST_PASSED; |
| |
| /* =================================================================== */ |
| |
| static final String PACKAGE_NAME = "nsk.jvmti.scenarios.bcinstr.BI01"; |
| static final String TESTED_CLASS_NAME = PACKAGE_NAME + ".bi01t001a"; |
| static final String TESTED_CLASS_FILE_NAME |
| = TESTED_CLASS_NAME.replace('.', File.separatorChar) + ".class"; |
| static final String TESTED_METHOD_NAME = "methodA"; |
| static final String TESTED_FIELD_NAME = "additionalValue"; |
| static final int NEW_INTSRUMENTED_CODE = 0; |
| static final int OLD_INTSRUMENTED_CODE = 1; |
| |
| Class<?> loadedClass; |
| String pathToLoadedClass; |
| |
| native boolean setNewByteCode(byte[] byteCode); |
| |
| native void setClass(Class cls); |
| |
| // run debuggee |
| public int runIt(String argv[], PrintStream out) { |
| argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| logger = new Log.Logger(log,"debuggee> "); |
| |
| if (argv.length < 1) { |
| logger.complain("This test expects path to tested class as 1-st argument"); |
| return Consts.TEST_FAILED; |
| } |
| |
| //path to loaded class |
| String path = argv[0]; |
| pathToLoadedClass = path + File.separator + "loadclass"; |
| String pathToNewClass = path + File.separator + "newclass"; |
| |
| //reading byte codes for instrumented classes |
| logger.display("Reading bytes of instrumented class from: \n\t" |
| + pathToNewClass); |
| try { |
| setNewByteCode(readBytes(pathToNewClass)); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| throw new Failure("IOException in reading instrumented bytecode " |
| + "from:\n\t" + pathToNewClass + e); |
| } |
| |
| /*debuggee finishes to read new byte codes nsk_jvmti_waitForSync#1*/ |
| if (checkStatus(Consts.TEST_PASSED) != Consts.TEST_PASSED) { |
| return Consts.TEST_FAILED; |
| } |
| |
| //class loading and preparing |
| if (!loadClass()) { |
| return Consts.TEST_FAILED; |
| } |
| |
| /*debuggee finishes debuggee to load next class nsk_jvmti_waitForSync#2*/ |
| if (checkStatus(Consts.TEST_PASSED) != Consts.TEST_PASSED) { |
| return Consts.TEST_FAILED; |
| } |
| |
| //checking that instrumenetation code works |
| if (!checkInstrumentedMethods(NEW_INTSRUMENTED_CODE)) |
| status = Consts.TEST_FAILED; |
| |
| /*debuggee finishes to check instrumentation code works nsk_jvmti_waitForSync#3*/ |
| if (checkStatus(Consts.TEST_PASSED) != Consts.TEST_PASSED) { |
| return Consts.TEST_FAILED; |
| } |
| |
| //redefine class |
| logger.display("debuggee sets classes to be redefined\n\tclass name: " |
| + loadedClass.getName()); |
| setClass(loadedClass); |
| |
| /*debuggee sets classes to be redefined nsk_jvmti_waitForSync#4*/ |
| if (checkStatus(Consts.TEST_PASSED) != Consts.TEST_PASSED) { |
| return Consts.TEST_FAILED; |
| } |
| |
| //checking that instrumenetation code works |
| if (!checkInstrumentedMethods(OLD_INTSRUMENTED_CODE)) |
| status = Consts.TEST_FAILED; |
| |
| /*debuggee finishes to check old byte code works nsk_jvmti_waitForSync#5*/ |
| if (checkStatus(Consts.TEST_PASSED) != Consts.TEST_PASSED) { |
| status = Consts.TEST_FAILED; |
| } |
| |
| if (status == Consts.TEST_FAILED) { |
| logger.complain("Test FAILED"); |
| } else { |
| logger.display("Test PASSED"); |
| } |
| |
| return status; |
| } |
| |
| /** class loading and preparing */ |
| boolean loadClass() { |
| //loading class to generate JVMTI_EVENT_CLASS_FILE_LOAD_HOOK |
| CustomClassLoader classLoader = new CustomClassLoader(); |
| classLoader.setClassPath(pathToLoadedClass); |
| logger.display("===> Loading tested class:\t" + TESTED_CLASS_NAME); |
| // loading tested classes |
| try { |
| loadedClass = classLoader.loadClass(TESTED_CLASS_NAME); |
| } catch (ClassNotFoundException e) { |
| logger.complain("class not found!!! " + TESTED_CLASS_NAME); |
| return false; |
| } |
| // to provoke class preparation |
| try { |
| Field fld = loadedClass.getField(TESTED_FIELD_NAME); |
| } catch (NoSuchFieldException e) { |
| logger.complain("field not found!!! " + TESTED_FIELD_NAME); |
| return false; |
| } |
| return true; |
| } |
| |
| /** Checks instrumented methods. */ |
| boolean checkInstrumentedMethods(int caseParam) { |
| //checking that instrumenetation code works |
| Method meth = null; |
| Integer res = null; |
| boolean result = true; |
| int expectedValue = 0; |
| |
| switch (caseParam) { |
| case NEW_INTSRUMENTED_CODE: |
| expectedValue = 101; |
| break; |
| case OLD_INTSRUMENTED_CODE: |
| expectedValue = 100; |
| break; |
| default: |
| new Failure("Unknown testcase"); |
| } |
| |
| try { |
| meth = loadedClass.getMethod(TESTED_METHOD_NAME); |
| res = (Integer )meth.invoke(null); |
| } catch (Exception e) { |
| logger.complain("Exception in invoking method of " |
| + "instrumented class:\n\t" + e); |
| return false; |
| } |
| |
| logger.display("Instrumented method returns value: " + res.intValue()); |
| |
| if (res.intValue() != expectedValue) { |
| logger.complain("Unexpected value, expected: " + expectedValue); |
| result = false; |
| } |
| return result; |
| } |
| |
| /** Read classfile for specified path. */ |
| byte[] readBytes(String path) throws IOException { |
| String filename = path + File.separator + TESTED_CLASS_FILE_NAME; |
| FileInputStream in = new FileInputStream(filename); |
| byte[] bytes = new byte[in.available()]; |
| in.read(bytes); |
| in.close(); |
| return bytes; |
| } |
| |
| } |