https://openjdk.java.net/ 
/*
 * Copyright (c) 1998, 2004, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 */

package com.sun.jdi.connect;

import com.sun.jdi.VirtualMachine;
import java.util.Map;
import java.io.IOException;


A connector which can launch a target VM before connecting to it.

Author:Gordon Hirsch
Since: 1.3
/**
 * A connector which can launch a target VM before connecting to it.
 *
 * @author Gordon Hirsch
 * @since  1.3
 */
public interface LaunchingConnector extends Connector {
    
Launches an application and connects to its VM. Properties
of the launch (possibly including options,
main class, and arguments) are specified in
arguments. The argument map associates argument name strings to instances of Argument. The default argument map for a connector can be obtained through Connector.defaultArguments. Argument map values can be changed, but map entries should not be added or deleted. 
A target VM launched by a launching connector is not guaranteed to be stable until after the VMStartEvent has been received. 

Important note: If a target VM is launched through this funcctions, its output and error streams must be read as it executes. These streams are available through the Process object returned by VirtualMachine.process. If the streams are not periodically read, the target VM will stop executing when the buffers for these streams are filled. 
Params:
  • arguments – the argument map to be used in launching the VM.
Throws:
  • IOException – when unable to launch.
Specific exceptions are dependent on the Connector implementation
in use.
  • IllegalConnectorArgumentsException – when one of the
connector arguments is invalid.
  • VMStartException – when the VM was successfully launched, but
terminated with an error before a connection could be established.
Returns:the VirtualMachine mirror of the target VM.
/**
     * Launches an application and connects to its VM. Properties
     * of the launch (possibly including options,
     * main class, and arguments) are specified in
     * <code>arguments</code>.
     * The argument map associates argument name strings to instances
     * of {@link Connector.Argument}. The default argument map for a
     * connector can be obtained through {@link Connector#defaultArguments}.
     * Argument map values can be changed, but map entries should not be
     * added or deleted.
     * <p>A target VM launched by a launching connector is not
     * guaranteed to be stable until after the {@link com.sun.jdi.event.VMStartEvent} has been
     * received.
     * <p>
     * <b>Important note:</b> If a target VM is launched through this
     * funcctions, its output and error streams must be read as it
     * executes. These streams are available through the
     * {@link java.lang.Process Process} object returned by
     * {@link com.sun.jdi.VirtualMachine#process}. If the streams are not periodically
     * read, the target VM will stop executing when the buffers for these
     * streams are filled.
     *
     * @param arguments the argument map to be used in launching the VM.
     * @return the {@link VirtualMachine} mirror of the target VM.
     * @throws java.io.IOException when unable to launch.
     * Specific exceptions are dependent on the Connector implementation
     * in use.
     * @throws IllegalConnectorArgumentsException when one of the
     * connector arguments is invalid.
     * @throws VMStartException when the VM was successfully launched, but
     * terminated with an error before a connection could be established.
     */
    VirtualMachine launch(Map<String,? extends Connector.Argument> arguments)
        throws IOException, IllegalConnectorArgumentsException,
               VMStartException;
}