com.facebook.nailgun.NGExitException Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of nailgun-server Show documentation

Nailgun is a client, protocol and server for running Java programs from the command line without incurring the JVM startup overhead. Programs run in the server (which is implemented in Java), and are triggered by the client (C and Python clients available), which handles all I/O. This project contains the SERVER ONLY.

There is a newer version: 1.0.1

Show newest version

/*
 * Copyright 2004-2012, Martian Software, Inc.
 * Copyright 2017-Present Facebook, Inc
 *
 * This class is based upon org.apache.tools.ant.ExitException and is
 * subject to the following:
 *
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2003 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 "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
 * .
 */
package com.facebook.nailgun;

import java.io.PrintStream;

/**
 * Security exception which wraps an exit status code.
 *
 * @author Pete Kirkham
 */
public class NGExitException extends SecurityException {

  /** Status code */
  private int status;

  /**
   * Constructs an exit exception.
   *
   * @param status the status code returned via System.exit()
   */
  public NGExitException(int status) {
    super("ExitException: status " + status);
    this.status = status;
  }

  /**
   * A lot of code out there, for example ant's Launcher, runs inside a try/catch (Throwable) which
   * will squash this exception; most also calll printStackTrace(), so this re-throws the exception
   * to escape the handling code.
   */
  public void printStackTrace(PrintStream out) {
    throw this;
  }

  public void reallyPrintStackTrace(PrintStream out) {
    super.printStackTrace(out);
  }

  /**
   * The status code returned by System.exit()
   *
   * @return the status code returned by System.exit()
   */
  public int getStatus() {
    return status;
  }
}