222 lines
9.0 KiB
Java
222 lines
9.0 KiB
Java
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.jvmti.RedefineClasses;
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import java.io.*;
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/**
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* This test checks that preexisting instance fields of a redefined
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* class will retain their previous values at the completion of
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* the redefinition and any new fields will have their default values.
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*/
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public class redefclass004 {
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static final int PASSED = 0;
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static final int FAILED = 2;
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static final int NO_RESULTS = 3;
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static final int JCK_STATUS_BASE = 95;
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static boolean DEBUG_MODE = false;
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static String fileDir = ".";
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private PrintStream out;
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static {
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try {
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System.loadLibrary("redefclass004");
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} catch (UnsatisfiedLinkError e) {
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System.err.println("Could not load redefclass004 library");
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System.err.println("java.library.path:" +
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System.getProperty("java.library.path"));
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throw e;
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}
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}
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native static int makeRedefinition(int vrb, Class redefCls,
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byte[] classBytes);
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native static int checkNewFields(int vrb, redefclass004r redefClsObj);
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public static void main(String[] argv) {
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argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
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System.exit(run(argv, System.out) + JCK_STATUS_BASE);
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}
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public static int run(String argv[], PrintStream out) {
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return new redefclass004().runIt(argv, out);
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}
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private int runIt(String argv[], PrintStream out) {
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File newRedefClassFile = null;
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byte[] redefClassBytes;
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int retValue = 0;
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boolean totalRes = true;
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this.out = out;
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for (int i = 0; i < argv.length; i++) {
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String token = argv[i];
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if (token.equals("-v")) // verbose mode
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DEBUG_MODE = true;
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else
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fileDir = token;
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}
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redefclass004r redefClsObj = new redefclass004r();
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if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 19) {
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if (DEBUG_MODE) {
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out.println("Successfully check the OLD version of redefclass004r");
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out.println("Default values of instance field of the redefined class:");
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out.println("\tbyteFld = " + redefClsObj.byteFld);
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out.println("\tshortFld = " + redefClsObj.shortFld);
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out.println("\tintFld = " + redefClsObj.intFld);
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out.println("\tlongFld = " + redefClsObj.longFld);
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out.println("\tfloatFld = " + redefClsObj.floatFld);
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out.println("\tdoubleFld = " + redefClsObj.doubleFld);
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out.println("\tcharFld = '" + redefClsObj.charFld + "'");
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out.println("\tbooleanFld = " + redefClsObj.booleanFld);
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out.println("\tstringFld = \"" + redefClsObj.stringFld + "\"\n");
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}
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} else {
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out.println("TEST: failed to check the OLD version of redefclass004r");
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out.println(" check CLASSPATH to the file oldclass/redefclass004r.class");
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out.println(" java.class.path: " +
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System.getProperty("java.class.path"));
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return FAILED;
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}
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// change the values of instance (nonstatic) fields of a redefined class
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redefClsObj.byteFld = 1;
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redefClsObj.shortFld = 2;
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redefClsObj.intFld = 3;
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redefClsObj.longFld = 4L;
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redefClsObj.floatFld = 5.1F;
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redefClsObj.doubleFld = 6.0D;
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redefClsObj.charFld = 'a';
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redefClsObj.booleanFld = false;
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redefClsObj.stringFld = "redefclass004r";
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// try to redefine class redefclass004r
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String fileName = fileDir + File.separator + "newclass" + File.separator +
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redefclass004r.class.getName().replace('.', File.separatorChar) +
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".class";
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if (DEBUG_MODE)
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out.println("Trying to redefine class from the file: " + fileName);
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try {
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FileInputStream in = new FileInputStream(fileName);
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redefClassBytes = new byte[in.available()];
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in.read(redefClassBytes);
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in.close();
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} catch (Exception ex) {
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out.println("# Unexpected exception while reading class file:");
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out.println("# " + ex);
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return FAILED;
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}
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// make real redefinition
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if (DEBUG_MODE)
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retValue=makeRedefinition(1, redefClsObj.getClass(),
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redefClassBytes);
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else
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retValue=makeRedefinition(0, redefClsObj.getClass(),
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redefClassBytes);
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switch (retValue) {
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case FAILED:
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out.println("TEST: failed to redefine class");
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return FAILED;
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case NO_RESULTS:
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return PASSED;
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case PASSED:
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break;
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}
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if ((retValue=redefClsObj.checkIt(out, DEBUG_MODE)) == 73) {
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if (DEBUG_MODE)
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out.println("Successfully check the NEW version of redefclass004r\n");
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/* Check that preexisting instance (nonstatic) fields of the redefined class
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retain their previous values after the redefinition */
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if (redefClsObj.byteFld == 1 && redefClsObj.shortFld == 2 &&
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redefClsObj.intFld == 3 && redefClsObj.longFld == 4L &&
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redefClsObj.floatFld == 5.1F && redefClsObj.doubleFld == 6.0D &&
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redefClsObj.charFld == 'a' && redefClsObj.booleanFld == false &&
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redefClsObj.stringFld.equals("redefclass004r")) {
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if (DEBUG_MODE)
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out.println("Check #1 PASSED: Preexisting instance fields " +
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"of the redefined class retain their previous values\n");
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} else {
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out.println("TEST FAILED: Preexisting instance fields of the " +
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"redefined class do not retain their previous values");
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out.println("Current values of instance field of the redefined class:");
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out.println("\tbyteFld = " + redefClsObj.byteFld +
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",\texpected 1");
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out.println("\tshortFld = " + redefClsObj.shortFld +
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",\texpected 2");
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out.println("\tintFld = " + redefClsObj.intFld +
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",\texpected 3");
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out.println("\tlongFld = " + redefClsObj.longFld +
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",\texpected 4");
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out.println("\tfloatFld = " + redefClsObj.floatFld +
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",\texpected 5.1");
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out.println("\tdoubleFld = " + redefClsObj.doubleFld +
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",\texpected 6.0");
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out.println("\tcharFld = '" + redefClsObj.charFld +
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"',\texpected 'a'");
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out.println("\tbooleanFld = " + redefClsObj.booleanFld +
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",\texpected false");
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out.println("\tstringFld = \"" + redefClsObj.stringFld +
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"\",\texpected \"redefclass004r\"\n");
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totalRes = false;
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}
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/* Check that all new instance (nonstatic) fields of the redefined class
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will have their default values after redefinition */
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if (DEBUG_MODE)
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retValue=checkNewFields(1, redefClsObj);
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else
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retValue=checkNewFields(0, redefClsObj);
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if (retValue == PASSED) {
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if (DEBUG_MODE)
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out.println("Check #2 PASSED: All new instance " +
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"fields of the redefined class\n" +
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"\thave their default values\n");
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} else {
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out.println("TEST FAILED: New instance fields " +
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"of the redefined class were not assigned " +
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"their default value\n");
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totalRes = false;
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}
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} else {
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if (retValue == 19)
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out.println("TEST FAILED: the method redefclass004r.checkIt() is still old");
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else
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out.println("TEST: failed to call method redefclass004r.checkIt()");
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return FAILED;
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}
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if (totalRes) return PASSED;
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else return FAILED;
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}
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}
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