| /* |
| * 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.RedefineClasses; |
| |
| import java.io.*; |
| |
| /** |
| * This test checks that the JVMTI function <code>RedefineClasses()</code> |
| * updates the attribute <i>LocalVariableTable</i> of the redefined class. |
| * Note, that all tested classes should be compiled with debugging info. |
| * The test creates a dummy instance of tested class <code>redefclass009r</code> |
| * Then the test redefines this class. Bytes of new version of the class |
| * <code>redefclass009r</code> are taken from the directory <i>./newclass_g</i>. |
| * Finally, the test checks that <i>LocalVariableTable</i>, one of the two |
| * attributes, accessible in JVMTI (<i>LineNumberTable</i> and |
| * <i>LocalVariableTable</i>), was updated after the redefinition. |
| */ |
| public class redefclass009 { |
| static final int PASSED = 0; |
| static final int FAILED = 2; |
| static final int JCK_STATUS_BASE = 95; |
| |
| static boolean DEBUG_MODE = false; |
| static String fileDir = "."; |
| |
| private PrintStream out; |
| |
| static { |
| try { |
| System.loadLibrary("redefclass009"); |
| } catch (UnsatisfiedLinkError e) { |
| System.err.println("Could not load redefclass009 library"); |
| System.err.println("java.library.path:" + |
| System.getProperty("java.library.path")); |
| throw e; |
| } |
| } |
| |
| native static int makeRedefinition(int vrb, Class redefClass, |
| byte[] classBytes); |
| native static int checkOrigAttr(redefclass009r redefClsObj); |
| native static int getResult(int vrb, redefclass009r redefClsObj); |
| |
| public static void main(String[] argv) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| System.exit(run(argv, System.out) + JCK_STATUS_BASE); |
| } |
| |
| public static int run(String argv[], PrintStream out) { |
| return new redefclass009().runIt(argv, out); |
| } |
| |
| private int runIt(String argv[], PrintStream out) { |
| File newRedefClassFile = null; |
| byte[] redefClassBytes; |
| int retValue = PASSED; |
| int totRes = PASSED; |
| |
| this.out = out; |
| for (int i = 0; i < argv.length; i++) { |
| String token = argv[i]; |
| |
| if (token.equals("-v")) // verbose mode |
| DEBUG_MODE = true; |
| else |
| fileDir = token; |
| } |
| |
| redefclass009r redefClsObj = new redefclass009r(); |
| if (redefClsObj.checkIt(out, DEBUG_MODE) == 19) { |
| if (DEBUG_MODE) |
| out.println("Successfully check the class redefclass009r"); |
| } else { |
| out.println("TEST: failed to check the class redefclass009r"); |
| return FAILED; |
| } |
| |
| // check the original attributes of the redefined class redefclass009r |
| if ((retValue = checkOrigAttr(redefClsObj)) == FAILED) |
| return FAILED; |
| |
| // try to redefine the class redefclass009r |
| String fileName = fileDir + File.separator + "newclass_g" + File.separator + |
| redefclass009r.class.getName().replace('.', File.separatorChar) + |
| ".class"; |
| if (DEBUG_MODE) |
| out.println("Trying to redefine class from the file: " + fileName); |
| try { |
| FileInputStream in = new FileInputStream(fileName); |
| redefClassBytes = new byte[in.available()]; |
| in.read(redefClassBytes); |
| in.close(); |
| } catch (Exception ex) { |
| out.println("# Unexpected exception while reading class file:"); |
| out.println("# " + ex); |
| return FAILED; |
| } |
| |
| if (DEBUG_MODE) |
| retValue = makeRedefinition(1, |
| redefClsObj.getClass(), redefClassBytes); |
| else |
| retValue = makeRedefinition(0, |
| redefClsObj.getClass(), redefClassBytes); |
| if (retValue == FAILED) |
| return FAILED; |
| |
| if ((retValue = redefClsObj.checkIt(out, DEBUG_MODE)) == 73) { |
| if (DEBUG_MODE) |
| out.println("Successfully check new version of the redefined class"); |
| } else { |
| out.println("TEST FAILED:\n" + |
| "\tthe class redefclass009r was not redefined: checkIt() returned " + |
| retValue); |
| return FAILED; |
| } |
| |
| /* check that LocalVariableTable in the redefined class redefclass009r |
| was updated */ |
| if (DEBUG_MODE) |
| return getResult(1, redefClsObj); |
| else return getResult(0, redefClsObj); |
| } |
| } |