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/*
* Copyright (c) 2005, 2020, 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.ConnectException;
import java.net.Socket;
import com.sun.jdi.Bootstrap;
import com.sun.jdi.VirtualMachine;
import com.sun.jdi.event.*;
import com.sun.jdi.connect.Connector;
import com.sun.jdi.connect.AttachingConnector;
import com.sun.jdi.connect.Connector.Argument;
import java.util.Map;
import java.util.List;
import java.util.Iterator;
import java.util.concurrent.TimeUnit;
import lib.jdb.Debuggee;
/* @test
* @bug 6306165 6432567
* @summary Check that a bad handshake doesn't cause a debuggee to abort
* @library /test/lib
*
* @modules java.management
* jdk.jdi
* @build BadHandshakeTest Exit0
* @run driver BadHandshakeTest
*/
public class BadHandshakeTest {
/*
* Find a connector by name
*/
private static Connector findConnector(String name) {
List<Connector> connectors = Bootstrap.virtualMachineManager().allConnectors();
Iterator<Connector> iter = connectors.iterator();
while (iter.hasNext()) {
Connector connector = iter.next();
if (connector.name().equals(name)) {
return connector;
}
}
return null;
}
private static void log(Object s) {
System.out.println(String.valueOf(s));
}
public static void main(String args[]) throws Exception {
// Launch the server debugee
log("Starting debuggee...");
try (Debuggee debuggee = Debuggee.launcher("Exit0").launch()) {
log("Debuggee started.");
int port = Integer.parseInt(debuggee.getAddress());
log("Debuggee port: " + port);
log("testcase 1...");
// Connect to the debuggee and handshake with garbage
Socket s = new Socket("localhost", port);
s.getOutputStream().write("Here's a poke in the eye".getBytes("UTF-8"));
s.close();
log("testcase 2...");
// Re-connect and do a partial handshake - don't disconnect
// Re-connect just after disconnect may cause "connection refused" error (see JDK-8192057)
Exception error = null;
long retryDelay = 20;
for (int retry = 0; retry < 5; retry++) {
if (error != null) {
try {
Thread.sleep(retryDelay);
} catch (InterruptedException ex) {
// ignore
}
retryDelay *= 2;
error = null;
}
try {
log("retry: " + retry);
s = new Socket("localhost", port);
s.getOutputStream().write("JDWP-".getBytes("UTF-8"));
break;
} catch (ConnectException ex) {
log("got exception: " + ex.toString());
error = ex;
}
}
if (error != null) {
throw error;
}
log("final attach...");
// Attach to server debuggee to ensure it's still available to attach and resume it so it can exit
AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
retryDelay = 20;
for (int retry = 0; retry < 5; retry++) {
if (error != null) {
try {
Thread.sleep(retryDelay);
} catch (InterruptedException ex) {
// ignore
}
retryDelay *= 2;
error = null;
}
try {
log("retry: " + retry);
Map<String, Argument> conn_args = conn.defaultArguments();
Connector.IntegerArgument port_arg =
(Connector.IntegerArgument)conn_args.get("port");
port_arg.setValue(port);
VirtualMachine vm = conn.attach(conn_args);
// The first event is always a VMStartEvent, and it is always in
// an EventSet by itself. Wait for it.
EventSet evtSet = vm.eventQueue().remove();
for (Event event : evtSet) {
if (event instanceof VMStartEvent) {
break;
}
throw new RuntimeException("Test failed - debuggee did not start properly");
}
vm.eventRequestManager().deleteAllBreakpoints();
vm.resume();
break;
} catch (ConnectException ex) {
log("got exception: " + ex.toString());
error = ex;
}
}
if (error != null) {
throw error;
}
// give the debuggee some time to exit before forcibly terminating it
debuggee.waitFor(10, TimeUnit.SECONDS);
}
}
}
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