| /* |
| * 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 values of preexisting static variables of |
| * the redefined class will remain as they were prior to the redifinition;<br> |
| * check that completely uninitialized (new) static variables will be |
| * assigned their default value. |
| */ |
| public class redefclass003 { |
| static final int PASSED = 0; |
| static final int FAILED = 2; |
| static final int NO_RESULTS = 3; |
| static final int JCK_STATUS_BASE = 95; |
| |
| static boolean DEBUG_MODE = false; |
| static String fileDir = "."; |
| |
| private PrintStream out; |
| |
| static { |
| try { |
| System.loadLibrary("redefclass003"); |
| } catch (UnsatisfiedLinkError e) { |
| System.err.println("Could not load redefclass003 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 checkNewFields(int vrb, Class redefClass); |
| |
| 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 redefclass003().runIt(argv, out); |
| } |
| |
| private int runIt(String argv[], PrintStream out) { |
| File newRedefClassFile = null; |
| byte[] redefClassBytes; |
| int retValue = 0; |
| boolean totalRes = true; |
| |
| 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; |
| } |
| |
| redefclass003r redefClsObj = new redefclass003r(); |
| if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 19 && |
| redefClsObj.byteFld == 1 && redefClsObj.shortFld == 2 && |
| redefClsObj.intFld == 3 && redefClsObj.longFld == 4L && |
| redefClsObj.floatFld == 5.1F && redefClsObj.doubleFld == 6.0D && |
| redefClsObj.charFld == 'a' && redefClsObj.booleanFld == false && |
| redefClsObj.stringFld.equals("OLD redefclass003r")) { |
| if (DEBUG_MODE) |
| out.println("Successfully check the OLD version of redefclass003r"); |
| } else { |
| out.println("TEST: failed to check the OLD version of redefclass003r"); |
| return FAILED; |
| } |
| |
| // try to redefine class redefclass003r |
| String fileName = fileDir + File.separator + "newclass" + File.separator + |
| redefclass003r.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; |
| } |
| |
| // make real redefinition |
| if (DEBUG_MODE) |
| retValue=makeRedefinition(1, redefClsObj.getClass(), |
| redefClassBytes); |
| else |
| retValue=makeRedefinition(0, redefClsObj.getClass(), |
| redefClassBytes); |
| switch (retValue) { |
| case FAILED: |
| out.println("TEST: failed to redefine class"); |
| return FAILED; |
| case NO_RESULTS: |
| return PASSED; |
| case PASSED: |
| break; |
| } |
| |
| if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 73) { |
| if (DEBUG_MODE) |
| out.println("Successfully check the NEW version of redefclass003r\n"); |
| |
| /* Check that preexisting fields of the redefined class retain their |
| previous values after the redefinition */ |
| if (redefClsObj.byteFld == 1 && redefClsObj.shortFld == 2 && |
| redefClsObj.intFld == 3 && redefClsObj.longFld == 4L && |
| redefClsObj.floatFld == 5.1F && redefClsObj.doubleFld == 6.0D && |
| redefClsObj.charFld == 'a' && redefClsObj.booleanFld == false && |
| redefClsObj.stringFld.equals("OLD redefclass003r")) { |
| if (DEBUG_MODE) |
| out.println("Check #1 PASSED: Preexisting static fields of the " + |
| "redefined class retain their previous values\n"); |
| } else { |
| out.println("TEST FAILED: Preexisting static fields of the " + |
| "redefined class do not retain their previous values"); |
| out.println("Current static field values of the redefined class:\n"); |
| out.println("\tbyteFld = " + redefClsObj.byteFld + |
| ",\texpected 1"); |
| out.println("\tshortFld = " + redefClsObj.shortFld + |
| ",\texpected 2"); |
| out.println("\tintFld = " + redefClsObj.intFld + |
| ",\texpected 3"); |
| out.println("\tlongFld = " + redefClsObj.longFld + |
| ",\texpected 4"); |
| out.println("\tfloatFld = " + redefClsObj.floatFld + |
| ",\texpected 5.1"); |
| out.println("\tdoubleFld = " + redefClsObj.doubleFld + |
| ",\texpected 6.0"); |
| out.println("\tcharFld = '" + redefClsObj.charFld + |
| "',\texpected 'a'"); |
| out.println("\tbooleanFld = " + redefClsObj.booleanFld + |
| ",\texpected false"); |
| out.println("\tstringFld = \"" + redefClsObj.stringFld + |
| "\"\texpected \"OLD redefclass003r\"\n"); |
| totalRes = false; |
| } |
| |
| /* Check that all completely uninitialized (new) static variables |
| were assigned their default value after redefinition */ |
| if (DEBUG_MODE) |
| retValue=checkNewFields(1, redefClsObj.getClass()); |
| else |
| retValue=checkNewFields(0, redefClsObj.getClass()); |
| if (retValue == PASSED) { |
| if (DEBUG_MODE) |
| out.println("Check #2 PASSED: All completely uninitialized " + |
| "static variables of the redefined class\n" + |
| "\twere assigned their default value\n"); |
| } else { |
| out.println("TEST FAILED: Completely uninitialized static " + |
| "variables of the redefined class were not assigned " + |
| "their default value\n"); |
| totalRes = false; |
| } |
| } else { |
| if (retValue == 19) |
| out.println("TEST FAILED: the method redefclass003r.checkIt() is still old"); |
| else |
| out.println("TEST: failed to call method redefclass003r.checkIt()"); |
| |
| return FAILED; |
| } |
| |
| if (totalRes) return PASSED; |
| else return FAILED; |
| } |
| } |