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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=5125 [PATCH] Execute.java now registers forked processes so they are destroyed when VM exits (i.e. ctrl-C) ------- Additional Comments From [EMAIL PROTECTED] 2001-11-27 06:39 ------- As Jose pointed out, ProcessDestroyer used the Collections framework. Sorry about that (started with jdk 1.2 beta). I've rewritten ProcessDestroyer to use a Hashtable instead of a Set. Here is the new ProcessDestroyer.java: /* * The Apache Software License, Version 1.1 * * Copyright (c) 2000 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Ant", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */ package org.apache.tools.ant.taskdefs; import java.lang.reflect.Method; import java.util.Enumeration; import java.util.Hashtable; /** * Destroys all registered <code>Process</code>es when the VM exits. * * @author <a href="mailto:[EMAIL PROTECTED]">Michael Newcomb</a> */ class ProcessDestroyer extends Thread { private Hashtable processes = new Hashtable(); /** * Constructs a <code>ProcessDestroyer</code> and registers it as a shutdown * hook. */ public ProcessDestroyer() { try { // check to see if the method exists (support pre-JDK 1.3 VMs) // Class[] paramTypes = {Thread.class}; Method addShutdownHook = Runtime.class.getMethod("addShutdownHook", paramTypes); // add the hook // Object[] args = {this}; addShutdownHook.invoke(Runtime.getRuntime(), args); } catch (Exception e) { // it just won't be added as a shutdown hook... :( } } /** * Returns <code>true</code> if the specified <code>Process</code> was * successfully added to the list of processes to destroy upon VM exit. * * @param process the process to add * @return <code>true</code> if the specified <code>Process</code> was * successfully added */ public boolean add(Process process) { processes.put(process, process); return true; } /** * Returns <code>true</code> if the specified <code>Process</code> was * successfully removed from the list of processes to destroy upon VM exit. * * @param process the process to remove * @return <code>true</code> if the specified <code>Process</code> was * successfully removed */ public boolean remove(Process process) { return processes.remove(process) != null; } /** * Invoked by the VM when it is exiting. */ public void run() { synchronized(processes) { Enumeration e = processes.elements(); while (e.hasMoreElements()) { ((Process) e.nextElement()).destroy(); } } } } -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
