/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
*join();
done();
}
}
public class SuspendAfterDeath extends TestScaffold {
private volatile ThreadReference targetThread;
private volatile boolean breakpointReached;
private static boolean useVirtualThread = false;
SuspendAfterDeath() {
super(new String[0]); // no args to pass along to debuggee
}
public static void main(String[] args) throws Exception {
if (args.length == 1) {
if ("Virtual".equals(args[0])) {
useVirtualThread = true; // see connect() below for how this is handled
} else {
throw new RuntimeException("SuspendAfterDeath: invalid argument: " + args[0]);
}
} else if (args.length != 0) {
throw new RuntimeException("SuspendAfterDeath: incorrect number of arguments: " + args.length);
}
new SuspendAfterDeath().startTests();
}
@Override
public void threadDied(ThreadDeathEvent event) {
ThreadReference eventThread = event.thread();
if (eventThread.name().equals(SuspendAfterDeathTarg.THREAD_NAME)) {
System.out.println("Target thread died, thread=" + eventThread +
", state=" + eventThread.status());
targetThread = eventThread;
if (targetThread.status() != ThreadReference.THREAD_STATUS_RUNNING) {
failure("FAILED: wrong state for thread: " + targetThread.status());
}
}
}
@Override
public void breakpointReached(BreakpointEvent event) {
ThreadReference eventThread = event.thread();
System.out.println("Breakpoint, thread=" + eventThread);
if (targetThread == null) {
failure("FAILED: got Breakpoint event before ThreadDeath event.");
} else {
System.out.println("Target thread status at breakpoint: thread=" + targetThread +
", state=" + targetThread.status());
if (targetThread.status() != ThreadReference.THREAD_STATUS_ZOMBIE) {
failure("FAILED: wrong state for thread: " + targetThread.status());
}
breakpointReached = true;
/* Suspend the thread. This is being done after the thread has exited. */
targetThread.suspend();
}
}
@Override
public void connect(String args[]) {
if (useVirtualThread) {
/* Append the "Virtual" argument to the arguments used for the debuggee. */
List<String> argList = new ArrayList(Arrays.asList(args));
argList.add("Virtual");
args = argList.toArray(args);
}
super.connect(args);
}
@Override
protected void runTests() throws Exception {
BreakpointEvent bpe = startToMain("SuspendAfterDeathTarg");
EventRequestManager erm = vm().eventRequestManager();
// listener for ThreadDeathEvent captures reference to the thread
ThreadDeathRequest request1 = erm.createThreadDeathRequest();
request1.enable();
// listener for BreakpointEvent attempts to suspend the thread
ReferenceType targetClass = bpe.location().declaringType();
Location loc = findMethod(targetClass, "done", "()V").location();
BreakpointRequest request2 = erm.createBreakpointRequest(loc);
request2.setSuspendPolicy(EventRequest.SUSPEND_EVENT_THREAD);
request2.enable();
listenUntilVMDisconnect();
if (targetThread == null) {
failure("FAILED: never got ThreadDeath event for target thread.");
}
if (!breakpointReached) {
failure("FAILED: never got Breakpoint event for target thread.");
}
if (!testFailed) {
println("SuspendAfterDeath: passed");
} else {
throw new Exception("SuspendAfterDeath: failed");
}
}
}
en'> @bug 8287847
* @summary Test suspending a virtual thread after it has terminated.
* @enablePreview
* @requires vm.continuations
* @run build TestScaffold VMConnection TargetListener TargetAdapter
* @run compile SuspendAfterDeath.java
* @run main/othervm SuspendAfterDeath Virtual
*/
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;
import java.util.*;
class SuspendAfterDeathTarg {
static final String THREAD_NAME =
"duke";
// breakpoint here
static void done() {
}
public static void main(String[] args)
throws Exception {
boolean useVirtualThread = ((args.length >
0) && args[
0].equals(
"Virtual"));
Thread thread;
System.out.println(
"Starting debuggee " + (useVirtualThread ?
"virtual" :
"platform") +
" thread.");
if (useVirtualThread) {
thread =
Thread.ofVirtual().name(THREAD_NAME).start(() -> { });
}
else {
thread =
Thread.ofPlatform().name(THREAD_NAME).start(() -> { });
}
thread.join();
done();
}
}
public class SuspendAfterDeath
extends TestScaffold {
private volatile ThreadReference targetThread;
private volatile boolean breakpointReached;
private static boolean useVirtualThread =
false;
SuspendAfterDeath() {
super(
new String[
0]);
// no args to pass along to debuggee
}
public static void main(String[] args)
throws Exception {
if (args.length ==
1) {
if (
"Virtual".equals(args[
0])) {
useVirtualThread =
true;
// see connect() below for how this is handled
}
else {
throw new RuntimeException(
"SuspendAfterDeath: invalid argument: " + args[
0]);
}
}
else if (args.length !=
0) {
throw new RuntimeException(
"SuspendAfterDeath: incorrect number of arguments: " + args.le
ngth);
}
new SuspendAfterDeath().startTests();
}
@Override
public void threadDied(ThreadDeathEvent event) {
ThreadReference eventThread = event.thread();
if (eventThread.name().equals(SuspendAfterDeathTarg.THREAD_NAME)) {
System.out.println("Target thread died, thread=" + eventThread +
", state=" + eventThread.status());
targetThread = eventThread;
if (targetThread.status() != ThreadReference.THREAD_STATUS_RUNNING) {
failure("FAILED: wrong state for thread: " + targetThread.status());
}
}
}
@Override
public void breakpointReached(BreakpointEvent event) {
ThreadReference eventThread = event.thread();
System.out.println("Breakpoint, thread=" + eventThread);
if (targetThread == null) {
failure("FAILED: got Breakpoint event before ThreadDeath event.");
} else {
System.out.println("Target thread status at breakpoint: thread=" + targetThread +
", state=" + targetThread.status());
if (targetThread.status() != ThreadReference.THREAD_STATUS_ZOMBIE) {
failure("FAILED: wrong state for thread: " + targetThread.status());
}
breakpointReached = true;
/* Suspend the thread. This is being done after the thread has exited. */
targetThread.suspend();
}
}
@Override
public void connect(String args[]) {
if (useVirtualThread) {
/* Append the "Virtual" argument to the arguments used for the debuggee. */
List<String> argList = new ArrayList(Arrays.asList(args));
argList.add("Virtual");
args = argList.toArray(args);
}
super.connect(args);
}
@Override
protected void runTests() throws Exception {
BreakpointEvent bpe = startToMain("SuspendAfterDeathTarg");
EventRequestManager erm = vm().eventRequestManager();
// listener for ThreadDeathEvent captures reference to the thread
ThreadDeathRequest request1 = erm.createThreadDeathRequest();
request1.enable();
// listener for BreakpointEvent attempts to suspend the thread
ReferenceType targetClass = bpe.location().declaringType();
Location loc = findMethod(targetClass, "done", "()V").location();
BreakpointRequest request2 = erm.createBreakpointRequest(loc);
request2.setSuspendPolicy(EventRequest.SUSPEND_EVENT_THREAD);
request2.enable();
listenUntilVMDisconnect();
if (targetThread == null) {
failure("FAILED: never got ThreadDeath event for target thread.");
}
if (!breakpointReached) {
failure("FAILED: never got Breakpoint event for target thread.");
}
if (!testFailed) {
println("SuspendAfterDeath: passed");
} else {
throw new Exception("SuspendAfterDeath: failed");
}
}
}