1 /*
   2  * Copyright (c) 1998, 2001, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.jdi.event;
  27 
  28 import com.sun.jdi.*;
  29 
  30 /**
  31  * Notification of target VM termination.
  32  * This event occurs if the target VM terminates before the
  33  * VM disconnects ({@link VMDisconnectEvent}).
  34  * Thus, this event will NOT occur if
  35  * external forces terminate the connection (e.g. a crash)
  36  * or if the connection is intentionally terminated with
  37  * {@link com.sun.jdi.VirtualMachine#dispose()
  38  *      VirtualMachine.dispose()}
  39  * <P>
  40  * On VM termination, a single unsolicited VMDeathEvent
  41  * will always be sent with a
  42  * {@link com.sun.jdi.request.EventRequest#suspendPolicy() suspend policy}
  43  * of {@link com.sun.jdi.request.EventRequest#SUSPEND_NONE SUSPEND_NONE}.
  44  * Additional VMDeathEvents will be sent in the same event set if they are
  45  * requested with a
  46  * {@link com.sun.jdi.request.VMDeathRequest VMDeathRequest}.
  47  * <P>
  48  * The VM is still intact and can be queried at the point this
  49  * event was initiated but immediately thereafter it is not
  50  * considered intact and cannot be queried.
  51  * Note: If the enclosing {@link EventSet} has a
  52  * {@link com.sun.jdi.request.EventRequest#suspendPolicy() suspend policy}
  53  * other than
  54  * {@link com.sun.jdi.request.EventRequest#SUSPEND_ALL SUSPEND_ALL}
  55  * the initiating point may be long past.
  56  * <P>
  57  * All VMDeathEvents will be in a single {@link EventSet},
  58  * no other events will be in the event set.  A resume
  59  * must occur to continue execution after any event set which
  60  * performs suspensions - in this case to allow proper shutdown.
  61  *
  62  * @see VMDisconnectEvent
  63  * @see com.sun.jdi.request.EventRequestManager#createVMDeathRequest
  64  * @see com.sun.jdi.request.VMDeathRequest
  65  * @see EventQueue
  66  * @see VirtualMachine
  67  *
  68  * @author Robert Field
  69  * @since  1.3
  70  */
  71 public interface VMDeathEvent extends Event {
  72 }