301 lines
12 KiB
Java
301 lines
12 KiB
Java
/*
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* Copyright (c) 2002, 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.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 <code>canUnrestrictedlyRedefineClasses()</code> is <code>false</code>,
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* attempting to add a constructor will throw
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* <code>UnsupportedOperationException</code> exception"
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*
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* The test consists of the following files: <br>
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* <code>redefineclasses011.java</code> - debugger <br>
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* <code>redefineclasses011a.java</code> - initial debuggee <br>
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* <code>newclassXX/redefineclasses011a.java</code> - redefining debuggees <br>
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*
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* Initial debugee-class has four dummy methods with different
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* kind of accessibility: public, protected and private (see COMMENTS into readme-file)
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* This test performs the following cases: <br>
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* 1.newclass01 - adding <public> constructor <br>
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* 2.newclass02 - adding <protected> constructor <br>
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* 3.newclass03 - adding <private> constructor <br>
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* 4.newclass04 - adding <private package> constructor <br>
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* The test checks two different cases for suspended debugee and not
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* suspended one.
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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 redefineclasses011 {
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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 + "redefineclasses011";
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private final static String debugeeName = debuggerName + "a";
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private final static String[][] subDirs = {
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{"newclass01","adding <public> constructor"},
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{"newclass02","adding <protected> constructor"},
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{"newclass03","adding <private> constructor"},
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{"newclass04","adding <private package> constructor"}
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};
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private final static String newClassFile = File.separator
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+ prefix.replace('.',File.separatorChar)
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+ "redefineclasses011a.class";
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private final static String oldClassFile
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= ClassFileFinder.findClassFile(debugeeName, Utils.TEST_CLASS_PATH)
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.toString();
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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 ClassType 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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System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
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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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redefineclasses011 thisTest = new redefineclasses011();
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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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waitTime = argHandler.getWaitTime() * 60000;
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debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);
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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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} 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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debugee.sendSignal("continue");
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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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debugee.VM().suspend();
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testedClass = (ClassType)debugee.classByName(debugeeName);
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display("Tested class\t:" + testedClass.name());
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BreakpointRequest brkp = debugee.setBreakpoint(testedClass,
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redefineclasses011a.brkpMethodName,
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redefineclasses011a.brkpLineNumber);
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debugee.resume();
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debugee.sendSignal("continue");
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waitBreakpointEvent(brkp, waitTime);
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display("\nTEST BEGINS");
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display("===========");
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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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}
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performCases();
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debugee.resume();
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thrd = debugee.threadByName("main");
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if (!thrd.isSuspended()) {
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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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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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/* adding an explicit public ctor into a public class without
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constructor declarations.
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The JLS 2nd ed. says:
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"8.8.7 Default Constructor
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If a class contains no constructor declarations, then a
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default constructor that takes no parameters is automatically
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provided.
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...
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If the class is declared public, then the default constructor
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is implicitly given the access modifier public (6.6)"
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So, no exception is expected.
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*/
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display("\n" + subDirs[0][1] + ">>>");
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mapBytes = mapClassToBytes(testDir + File.separator + subDirs [0][0] + newClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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display(">check passed: class file redefinition done successfully"
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+ "\n>return to the previous state...");
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mapBytes = mapClassToBytes(oldClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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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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} catch(Exception e) {
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complain("***Unexpected " + e +" is thrown"
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+ "\n***\twhile " + subDirs[0][1]);
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exitStatus = Consts.TEST_FAILED;
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}
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// adding an explicit ctor with different access modifiers
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for (int i = 1; i < subDirs.length; i++) {
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display("\n" + subDirs[i][1] + ">>>");
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mapBytes = mapClassToBytes(testDir + File.separator + subDirs [i][0] + newClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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if (!debugee.VM().canAddMethod()) {
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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("***UnsupportedOperationException is not thrown");
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complain("***\twhile " + subDirs[i][1]);
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display(">return to the previous state...");
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mapBytes = mapClassToBytes(oldClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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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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}
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} catch (UnsupportedOperationException e) {
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if (!debugee.VM().canAddMethod()) {
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display(EXPECTED_STRING + e);
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} else {
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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(statDebugee + UNEXPECTED_STRING
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+ "UnsupportedOperationException");
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complain("***\twhile " + subDirs[i][1]);
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}
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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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}
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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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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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private BreakpointEvent waitBreakpointEvent(BreakpointRequest brkp, long waitTime) {
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Event event;
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display(">waiting breakpoint event...");
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try {
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event = debugee.waitingEvent(brkp, 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 BreakpointEvent )) {
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throw new TestBug("BreakpointEvent didn't arrive");
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}
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return (BreakpointEvent )event;
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}
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}
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