264 lines
9.6 KiB
Java
264 lines
9.6 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 consits of the following files:
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* <code>redefineclasses003.java</code> - debugger
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* <code>redefineclasses003a.java</code> - initial debuggee
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* <code>newclass/redefineclasses003a.java</code> - redefined debuggee
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*
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* When the test is starting debugee, debugger sets breakpoint at
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* a line of <code>method_A</code>, where <code>method_B</code> is called.
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* After the breakpoint is reached, debugger:
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* - redefines debugee-class, that is inserting line after point of
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* execution: <code>log.display("new line");</code>
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* - creates step request adding class filter
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* - waits for a step event three times.
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*
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* In case, a step event didn't arrive from <code>method_B</code>, test fails.
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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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* The test should be compiled with <code>-g</code> option, so cfg-file redefines
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* <code>JAVA_OPTS</code> variable.
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*/
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public class redefineclasses003 {
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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 + "redefineclasses003";
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private final static String debugeeName = debuggerName + "a";
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private final static String newClassFile = "newclass"
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+ File.separator + prefix.replace('.',File.separatorChar)
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+ "redefineclasses003a.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 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 clsDir;
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private ClassType testedClass;
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class MethodNotFoundException extends RuntimeException {
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MethodNotFoundException (String msg) {
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super(msg);
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}
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}
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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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redefineclasses003 thisTest = new redefineclasses003();
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ArgumentHandler argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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clsDir = 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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redefineclasses003a.brkpMethodName,
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redefineclasses003a.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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Field fld = null;
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display("\nTEST BEGINS");
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display("===========");
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display(">>> Static fields initialized by <clinit>");
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checkFields(redefineclasses003a.INITIAL_VALUE);
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redefineClass(clsDir + File.separator + newClassFile);
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checkFields(redefineclasses003a.INITIAL_VALUE);
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display("\n>>> Static fields initialized by debugger");
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IntegerValue newValue = debugee.VM().mirrorOf(redefineclasses003a.ASSIGNED_VALUE);
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for (int i = 0; i < redefineclasses003a.testedFields.length; i++) {
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fld = testedClass.fieldByName(redefineclasses003a.testedFields[i]);
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try {
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((ClassType )testedClass).setValue(fld, newValue);
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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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checkFields(redefineclasses003a.ASSIGNED_VALUE);
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redefineClass(oldClassFile);
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checkFields(redefineclasses003a.ASSIGNED_VALUE);
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display("\n>>> Static fields initialized by debuggee at runtime");
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brkp = debugee.setBreakpoint(testedClass,
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redefineclasses003a.brkpMethodName,
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redefineclasses003a.brkpLineNumber + 9);
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debugee.resume();
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waitBreakpointEvent(brkp, waitTime);
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checkFields(redefineclasses003a.REASSIGNED_VALUE);
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redefineClass(clsDir + File.separator + newClassFile);
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checkFields(redefineclasses003a.REASSIGNED_VALUE);
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debugee.resume();
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display("=============");
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display("TEST FINISHES\n");
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}
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private void checkFields(int expectedValue) {
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int value;
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Field fld;
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Value val;
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for (int i = 0; i < redefineclasses003a.testedFields.length; i++) {
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fld = testedClass.fieldByName(redefineclasses003a.testedFields[i]);
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val = testedClass.getValue(fld);
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value = ((IntegerValue )val).value();
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if (value != expectedValue) {
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complain("Unexpected " + fld.name() + " = "
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+ redefineclasses003a.value2String(value));
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exitStatus = Consts.TEST_FAILED;
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return;
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}
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display(fld.name() + " = " + redefineclasses003a.value2String(value));
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}
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}
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private void redefineClass(String classFile) {
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display(">redefining the Debugee class...");
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Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes = mapClassToBytes(classFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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} catch (UnsupportedOperationException e) {
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if (!debugee.VM().canRedefineClasses()) {
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complain("*** Warning: " + e);
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complain("*** The test is considered as passed");
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return;
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}
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throw new TestBug(UNEXPECTED_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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}
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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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