280 lines
9.6 KiB
Java
280 lines
9.6 KiB
Java
/*
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* Copyright (c) 2002, 2024, 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.jdi.VirtualMachine.redefineClasses;
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import jdk.test.lib.Utils;
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import nsk.share.*;
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import nsk.share.jpda.*;
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import nsk.share.jdi.*;
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import com.sun.jdi.*;
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import com.sun.jdi.request.*;
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import com.sun.jdi.event.*;
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import java.util.*;
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import java.io.*;
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/**
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* The test against the method <code>com.sun.jdi.VirtualMachine.redefineClasses()</code>
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* and checks up the following assertion: <br>
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* "If the major and minor version numbers in bytes are not supported by the VM
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* <code>UnsupportedClassVersionError</code> will be thrown."
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*
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* The test consists of the following files: <br>
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* <code>redefineclasses027.java</code> - debugger <br>
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* <code>redefineclasses027a.java</code> - debuggee <br>
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* <code>redefineclasses027c.java</code> - tested class <br>
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* <code>redefineclasses027i.java</code> - tested interface <br>
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*
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* This test corrupts byte-code of the version number and tries to redefine
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* the tested classes.
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* When <code>canRedefineClasses()</code> is <code>false</code>, the test is
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* considered as passed and completes it's execution.
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*/
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public class redefineclasses027 {
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public final static String UNEXPECTED_STRING = "***Unexpected exception ";
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public final static String EXPECTED_STRING = "!!!Expected exception ";
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private final static String prefix = "nsk.jdi.VirtualMachine.redefineClasses.";
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private final static String debuggerName = prefix + "redefineclasses027";
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private final static String debugeeName = debuggerName + "a";
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public final static String [] testedClassNames = {
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debuggerName + "c",
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debuggerName + "i"
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};
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private static final String dashes = "--------------------------";
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private static int exitStatus;
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private static Log log;
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private static Debugee debugee;
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private static long waitTime;
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private static String testDir;
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private static String statDebugee;
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private ReferenceType testedClass;
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private static void display(String msg) {
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log.display(msg);
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}
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private static void complain(String msg) {
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log.complain("debugger FAILURE> " + msg + "\n");
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}
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public static void main(String argv[]) {
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int result = run(argv,System.out);
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if (result != 0) {
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throw new RuntimeException("TEST FAILED with result " + result);
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}
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}
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public static int run(String argv[], PrintStream out) {
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exitStatus = Consts.TEST_PASSED;
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redefineclasses027 thisTest = new redefineclasses027();
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ArgumentHandler argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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testDir = argv[0];
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debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);
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waitTime = argHandler.getWaitTime() * 60000;
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try {
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thisTest.execTest();
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} catch (TestBug e) {
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exitStatus = Consts.TEST_FAILED;
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e.printStackTrace();
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} catch (Exception e) {
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exitStatus = Consts.TEST_FAILED;
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e.printStackTrace();
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} finally {
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debugee.resume();
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debugee.quit();
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}
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display("Test finished. exitStatus = " + exitStatus);
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return exitStatus;
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}
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private void execTest() throws TestBug {
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if (!debugee.VM().canRedefineClasses()) {
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display("\n>>>canRedefineClasses() is false<<< test canceled.\n");
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return;
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}
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ClassPrepareRequest clpr = debugee.getEventRequestManager().createClassPrepareRequest();
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clpr.addClassFilter(debuggerName + "*");
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// #4736633 is fixed
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clpr.addClassExclusionFilter(debuggerName + "ic");
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clpr.enable();
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debugee.sendSignal("load_class");
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ClassPrepareEvent clpEvent = waitClassPrepareEvent(clpr, waitTime);
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display(typePrompt(testedClass) + ":\t" + clpEvent.referenceType().name());
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debugee.resume();
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clpEvent = waitClassPrepareEvent(clpr, waitTime);
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display(typePrompt(testedClass) + ":\t" + clpEvent.referenceType().name());
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display("\nTEST BEGINS");
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display("===========");
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displayVMStatus();
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performCases();
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debugee.resume();
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displayVMStatus();
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performCases();
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display("\n=============");
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display("TEST FINISHES\n");
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}
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private void performCases() {
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Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes;
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boolean alreadyComplained = false;
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String oldClassFile;
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for (int i = 0; i < testedClassNames.length; i++) {
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testedClass = debugee.classByName(testedClassNames[i]);
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display(typePrompt(testedClass) + ":\t" + testedClass.name());
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oldClassFile = ClassFileFinder.findClassFile(testedClassNames[i], Utils.TEST_CLASS_PATH).toString();
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mapBytes = mapClassToBytes(oldClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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exitStatus = Consts.TEST_FAILED;
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if (!alreadyComplained) {
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alreadyComplained = true;
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complain("***" + dashes);
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complain("***" + statDebugee);
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complain("***" + dashes);
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}
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complain("***UnsupportedClassVersionError is not thrown");
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} catch (UnsupportedClassVersionError e) {
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display(EXPECTED_STRING + e);
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} catch (Exception e) {
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throw new TestBug(UNEXPECTED_STRING + e);
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}
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display("");
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}
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}
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private Map<? extends com.sun.jdi.ReferenceType,byte[]> mapClassToBytes(String fileName) {
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display("class-file:\t" + fileName);
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File fileToBeRedefined = new File(fileName);
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int fileToRedefineLength = (int )fileToBeRedefined.length();
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byte[] arrayToRedefine = new byte[fileToRedefineLength];
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FileInputStream inputFile;
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try {
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inputFile = new FileInputStream(fileToBeRedefined);
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} catch (FileNotFoundException e) {
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throw new TestBug(UNEXPECTED_STRING + e);
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}
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try {
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inputFile.read(arrayToRedefine);
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inputFile.close();
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} catch (IOException e) {
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throw new TestBug(UNEXPECTED_STRING + e);
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}
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// corrupting major and minor version numbers of class file structure
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display("actual version number: \t"
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+ getValue(arrayToRedefine[6], arrayToRedefine[7])
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+ "."
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+ getValue(arrayToRedefine[4], arrayToRedefine[5]));
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arrayToRedefine[4] = (byte )0xF;
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arrayToRedefine[5] = arrayToRedefine[4];
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arrayToRedefine[6] = arrayToRedefine[4];
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arrayToRedefine[7] = arrayToRedefine[4];
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display("corrupted version number:\t"
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+ getValue(arrayToRedefine[6], arrayToRedefine[7])
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+ "."
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+ getValue(arrayToRedefine[4], arrayToRedefine[5]));
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HashMap<com.sun.jdi.ReferenceType,byte[]> mapForClass = new HashMap<com.sun.jdi.ReferenceType,byte[]>();
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mapForClass.put(testedClass, arrayToRedefine);
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return mapForClass;
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}
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int getValue(byte b1, byte b2) {
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int val = b1 * 0x100 + b2;
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return val;
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}
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private ClassPrepareEvent waitClassPrepareEvent(ClassPrepareRequest clpr, long waitTime) {
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Event event;
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display(">waiting class prepare event...");
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try {
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event = debugee.waitingEvent(clpr, waitTime);
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} catch (InterruptedException e) {
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throw new TestBug(UNEXPECTED_STRING + e);
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}
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if (!(event instanceof ClassPrepareEvent )) {
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throw new TestBug("ClassPrepareEvent didn't arrive");
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}
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return (ClassPrepareEvent )event;
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}
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private String typePrompt(ReferenceType refType) {
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String msg = "Tested ";
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if (refType instanceof InterfaceType) {
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msg += "interface";
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} else if (refType instanceof ClassType) {
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msg += "class";
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} else {
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msg += "type";
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}
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return msg;
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}
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void displayVMStatus() {
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ThreadReference thrd = debugee.threadByName("main");
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if (thrd.isSuspended()) {
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statDebugee = "Debugee is suspended";
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display("\n\n<<<" + statDebugee + ">>>");
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display(dashes);
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} else {
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statDebugee = "Debugee is not suspended";
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display("\n\n<<<" + statDebugee + ">>>");
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display("------------------------------");
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}
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}
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}
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