| /* |
| * Copyright (c) 2005, 2014, 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.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 java.util.concurrent.atomic.AtomicBoolean; |
| |
| import jdk.testlibrary.Utils; |
| import jdk.testlibrary.ProcessTools; |
| |
| /* @test |
| * @bug 6306165 6432567 |
| * @summary Check that a bad handshake doesn't cause a debuggee to abort |
| * @library /lib/testlibrary |
| * |
| * @build jdk.testlibrary.* VMConnection 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 = (Connector)iter.next(); |
| if (connector.name().equals(name)) { |
| return connector; |
| } |
| } |
| return null; |
| } |
| |
| /* |
| * Launch a server debuggee with the given address |
| */ |
| private static LaunchResult launch(String address, String class_name) throws Exception { |
| String[] args = VMConnection.insertDebuggeeVMOptions(new String[] { |
| "-agentlib:jdwp=transport=dt_socket" + |
| ",server=y" + ",suspend=y" + ",address=" + address, |
| class_name |
| }); |
| |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args); |
| |
| final AtomicBoolean success = new AtomicBoolean(); |
| final AtomicBoolean bindFailed = new AtomicBoolean(); |
| Process p = ProcessTools.startProcess( |
| class_name, |
| pb, |
| (line) -> { |
| // The first thing that will get read is |
| // Listening for transport dt_socket at address: xxxxx |
| // which shows the debuggee is ready to accept connections. |
| success.set(line.contains("Listening for transport dt_socket at address:")); |
| // If the first line contains 'Address already in use' |
| // that means the debuggee has failed to start due to busy port |
| bindFailed.set(line.contains("Address already in use")); |
| return true; |
| }, |
| Integer.MAX_VALUE, |
| TimeUnit.MILLISECONDS |
| ); |
| |
| return new LaunchResult(success.get() ? p : null, |
| bindFailed.get()); |
| } |
| |
| /* |
| * - pick a TCP port |
| * - Launch a server debuggee: server=y,suspend=y,address=${port} |
| * - run it to VM death |
| * - verify we saw no error |
| */ |
| public static void main(String args[]) throws Exception { |
| // Launch the server debuggee |
| int port = 0; |
| Process process = null; |
| while (process == null) { |
| port = Utils.getFreePort(); |
| String address = String.valueOf(port); |
| LaunchResult launchResult = launch(address, "Exit0"); |
| process = launchResult.getProcess(); |
| if (launchResult.isBindFailed()) { |
| System.out.println("Port " + port + " already in use. Trying to restart debuggee with a new one..."); |
| Thread.sleep(100); |
| } else if (process == null ) { |
| throw new RuntimeException("Unable to start debugee"); |
| } |
| } |
| |
| // 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(); |
| |
| // Re-connect and to a partial handshake - don't disconnect |
| s = new Socket("localhost", port); |
| s.getOutputStream().write("JDWP-".getBytes("UTF-8")); |
| |
| |
| // Attach to server debuggee and resume it so it can exit |
| AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach"); |
| 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(); |
| |
| process.waitFor(); |
| } |
| |
| private static class LaunchResult { |
| |
| private final Process p; |
| private final boolean bindFailed; |
| |
| public LaunchResult(Process p, boolean bindFailed) { |
| this.p = p; |
| this.bindFailed = bindFailed; |
| } |
| |
| public Process getProcess() { |
| return p; |
| } |
| |
| public boolean isBindFailed() { |
| return bindFailed; |
| } |
| |
| } |
| |
| } |