1 /*

     2  * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  *

    26  *

    27  * Unit test for ProcessAttachingConnector - this "debugger" attaches to a debuggee

    28  * given it's pid. Usage:

    29  *

    30  *      java ProcessAttachDebugger <pid>

    31  */

    32 

    33 import com.sun.jdi.Bootstrap;

    34 import com.sun.jdi.VirtualMachine;

    35 import com.sun.jdi.ThreadReference;

    36 import com.sun.jdi.connect.Connector;

    37 import com.sun.jdi.connect.AttachingConnector;

    38 

    39 import java.util.List;

    40 import java.util.Map;

    41 

    42 public class ProcessAttachDebugger {

    43 

    44     public static void main(String main_args[]) throws Exception {

    45         String pid = main_args[0];

    46 

    47         // find ProcessAttachingConnector

    48 

    49         List<AttachingConnector> l =

    50             Bootstrap.virtualMachineManager().attachingConnectors();

    51         AttachingConnector ac = null;

    52         for (AttachingConnector c: l) {

    53             if (c.name().equals("com.sun.jdi.ProcessAttach")) {

    54                 ac = c;

    55                 break;

    56             }

    57         }

    58         if (ac == null) {

    59             throw new RuntimeException("Unable to locate ProcessAttachingConnector");

    60         }

    61 

    62         Map<String,Connector.Argument> args = ac.defaultArguments();

    63         Connector.StringArgument arg = (Connector.StringArgument)args.get("pid");

    64         arg.setValue(pid);

    65 

    66         System.out.println("Debugger is attaching to: " + pid + " ...");

    67 

    68         VirtualMachine vm = ac.attach(args);

    69 

    70         System.out.println("Attached! Now listing threads ...");

    71 

    72         // list all threads

    73 

    74         for (ThreadReference thr: vm.allThreads()) {

    75             System.out.println(thr);

    76         }

    77 

    78         System.out.println("Debugger done.");

    79     }

    80 

    81 }