348 lines
13 KiB
Java
348 lines
13 KiB
Java
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/*
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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.BScenarios.hotswap;
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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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* This test is from the group of so-called Borland's scenarios and
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* implements the following test case:
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* Suite 3 - Hot Swap
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* Test case: TC2
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* Description: Before point of execution, same method
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* Steps: 1.Set breakpoint at line 24 (call to b()
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* from a())
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* 2.Debug Main
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* 3.Insert as line before point of
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* execution: System.err.println("foo");
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* 4.Smart Swap
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* 5.Set Smart PopFrame to beginging of
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* method a()
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* 6.Resume
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* X. Prints out "foo" and hits breakpoint
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* on line 24
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* 7.Resume
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* X. Prints numbers
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* The description was drown up according to steps under JBuilder.
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*
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* Of course, the test has own line numbers and method/class names and
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* works as follow:
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* When the test is starting debugee, debugger sets breakpoint at
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* the 38th line (method <code>method_A</code>).
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* After the breakpoint is reached, debugger: <br>
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* - redefines debugee adding a new line into "method_A", <br>
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* - pops current frame, <br>
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* - sets breakpoint at the 38th line again <br>
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* and resumes debugee.
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* It is expected the new code will be actual after the redefining and
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* it doesn't hit breakpoint according to JVMDI Redefine Classes spec :
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* "...All breakpoints in the class are cleared."
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*/
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public class tc02x002 {
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public final static String UNEXPECTED_STRING = "***Unexpected exception ";
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private final static String prefix = "nsk.jdi.BScenarios.hotswap.";
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private final static String debuggerName = prefix + "tc02x002";
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private final static String debugeeName = debuggerName + "a";
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private final static String newClassFile = "newclass" + File.separator
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+ debugeeName.replace('.',File.separatorChar)
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+ ".class";
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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 classDir;
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private int expectedEventCount = 6;
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private int eventCount = 0;
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private ReferenceType debugeeClass;
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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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tc02x002 thisTest = new tc02x002();
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ArgumentHandler argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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classDir = argv[0];
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waitTime = argHandler.getWaitTime() * 60000;
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Binder binder = new Binder(argHandler, log);
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debugee = binder.bindToDebugee(debugeeName);
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try {
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thisTest.execTest();
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} catch (Throwable 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.endDebugee();
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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 Failure {
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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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display("\nTEST BEGINS");
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display("===========");
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EventSet eventSet = null;
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EventIterator eventIterator = null;
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Event event;
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long totalTime = waitTime;
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long tmp, begin = System.currentTimeMillis(),
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delta = 0;
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boolean exit = false;
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EventRequestManager evm = debugee.getEventRequestManager();
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ClassPrepareRequest req = evm.createClassPrepareRequest();
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req.addClassFilter(debugeeName);
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req.enable();
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debugee.resume();
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while (totalTime > 0 && !exit) {
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if (eventIterator == null || !eventIterator.hasNext()) {
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try {
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eventSet = debugee.VM().eventQueue().remove(totalTime);
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} catch (InterruptedException e) {
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new Failure(e);
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}
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if (eventSet != null) {
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eventIterator = eventSet.eventIterator();
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} else {
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eventIterator = null;
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}
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}
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if (eventIterator != null) {
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while (eventIterator.hasNext()) {
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event = eventIterator.nextEvent();
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// display("\n event ===>>> " + event);
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if (event instanceof ClassPrepareEvent) {
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display("\n event ===>>> " + event);
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debugeeClass = ((ClassPrepareEvent )event).referenceType();
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display("Tested class\t:" + debugeeClass.name());
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debugee.setBreakpoint(debugeeClass,
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tc02x002a.brkpMethodName,
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tc02x002a.brkpLineNumber);
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debugee.resume();
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eventCount++;
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} else if (event instanceof BreakpointEvent) {
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display("\n event ===>>> " + event);
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switch (eventCount) {
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case 1:
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display("redefining...");
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redefineDebugee();
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popFrames(((BreakpointEvent )event).thread());
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debugee.setBreakpoint(debugeeClass,
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tc02x002a.brkpMethodName,
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tc02x002a.brkpLineNumber);
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break;
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case 2:
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display("!!!Expected second breakpoint event!!!");
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createMethodExitRequest(debugeeClass);
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break;
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default:
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complain("Unexpected breakpoint event");
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exitStatus = Consts.TEST_FAILED;
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}
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eventCount++;
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hitBreakpoint((BreakpointEvent )event);
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debugee.resume();
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} else if (event instanceof MethodExitEvent) {
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display("\n event ===>>> " + event);
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hitMethodExit((MethodExitEvent)event);
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eventCount++;
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debugee.resume();
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} else if (event instanceof VMDeathEvent) {
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exit = true;
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break;
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} else if (event instanceof VMDisconnectEvent) {
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exit = true;
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break;
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} // if
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} // while
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} // if
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tmp = System.currentTimeMillis();
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delta = tmp - begin;
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totalTime -= delta;
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begin = tmp;
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}
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if (eventCount != expectedEventCount) {
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if (totalTime <= 0) {
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complain("out of wait time...");
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}
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complain("expecting " + expectedEventCount
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+ " events, but "
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+ eventCount + " events arrived.");
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exitStatus = Consts.TEST_FAILED;
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}
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display("=============");
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display("TEST FINISHES\n");
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}
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private void redefineDebugee() {
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Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes;
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boolean alreadyComplained = false;
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mapBytes = mapClassToBytes(newClassFile);
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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 Failure(UNEXPECTED_STRING + e);
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}
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}
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private void popFrames(ThreadReference thread) {
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try {
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StackFrame frame = thread.frame(0);
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thread.popFrames(frame);
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} catch (IncompatibleThreadStateException e) {
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throw new Failure(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(classDir + File.separator + 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 Failure(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 Failure(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(debugeeClass, arrayToRedefine);
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return mapForClass;
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}
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private MethodExitRequest createMethodExitRequest(ReferenceType refType) {
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EventRequestManager evm = debugee.getEventRequestManager();
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MethodExitRequest request = evm.createMethodExitRequest();
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request.addClassFilter(refType);
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request.enable();
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return request;
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}
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private void hitBreakpoint(BreakpointEvent event) {
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locationInfo(event);
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if (event.location().lineNumber() != tc02x002a.checkLastLine) {
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complain("BreakpointEvent steps to line " + event.location().lineNumber()
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+ ", expected line number is "
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+ tc02x002a.checkLastLine);
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exitStatus = Consts.TEST_FAILED;
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} else {
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display("!!!BreakpointEvent steps to the expected line "
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+ event.location().lineNumber() + "!!!");
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}
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display("");
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}
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private void hitMethodExit(MethodExitEvent event) {
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locationInfo(event);
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Method mthd = ((MethodExitEvent )event).method();
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if (mthd.name().compareTo(tc02x002a.brkpMethodName) == 0) {
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Field fld = debugeeClass.fieldByName(tc02x002a.fieldToCheckName);
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Value val = debugeeClass.getValue(fld);
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if (((IntegerValue )val).value() != tc02x002a.CHANGED_VALUE) {
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complain("Unexpected: new code is not actual "
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+ "after resetting frames");
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complain("Unexpected value of checked field: "
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+ val);
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exitStatus = Consts.TEST_FAILED;
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} else {
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display("!!!Expected: new code is actual "
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+ "after resetting frames!!!");
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}
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}
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display("");
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}
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private void locationInfo(LocatableEvent event) {
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display("event info:");
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display("\tthread\t- " + event.thread().name());
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try {
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display("\tsource\t- " + event.location().sourceName());
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} catch (AbsentInformationException e) {
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}
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display("\tmethod\t- " + event.location().method().name());
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display("\tline\t- " + event.location().lineNumber());
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}
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}
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