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/* VMSystemProperties.java -- Allow the VM to set System properties.

   Copyright (C) 2004 Free Software Foundation

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 for more details.

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

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.classpath;

import java.util.Properties;

class VMSystemProperties

{

    /**

     * Get the system properties. This is done here, instead of in System,

     * because of the bootstrap sequence. Note that the native code should

     * not try to use the Java I/O classes yet, as they rely on the properties

     * already existing. The only safe method to use to insert these default

     * system properties is {@link Properties#setProperty(String, String)}.

     *

     * <p>These properties MUST include:

     * <dl>

     * <dt>java.version         <dd>Java version number

     * <dt>java.vendor          <dd>Java vendor specific string

     * <dt>java.vendor.url      <dd>Java vendor URL

     * <dt>java.home            <dd>Java installation directory

     * <dt>java.vm.specification.version <dd>VM Spec version

     * <dt>java.vm.specification.vendor  <dd>VM Spec vendor

     * <dt>java.vm.specification.name    <dd>VM Spec name

     * <dt>java.vm.version      <dd>VM implementation version

     * <dt>java.vm.vendor       <dd>VM implementation vendor

     * <dt>java.vm.name         <dd>VM implementation name

     * <dt>java.specification.version    <dd>Java Runtime Environment version

     * <dt>java.specification.vendor     <dd>Java Runtime Environment vendor

     * <dt>java.specification.name       <dd>Java Runtime Environment name

     * <dt>java.class.version   <dd>Java class version number

     * <dt>java.class.path      <dd>Java classpath

     * <dt>java.library.path    <dd>Path for finding Java libraries

     * <dt>java.io.tmpdir       <dd>Default temp file path

     * <dt>java.compiler        <dd>Name of JIT to use

     * <dt>java.ext.dirs        <dd>Java extension path

     * <dt>os.name              <dd>Operating System Name

     * <dt>os.arch              <dd>Operating System Architecture

     * <dt>os.version           <dd>Operating System Version

     * <dt>file.separator       <dd>File separator ("/" on Unix)

     * <dt>path.separator       <dd>Path separator (":" on Unix)

     * <dt>line.separator       <dd>Line separator ("\n" on Unix)

     * <dt>user.name            <dd>User account name

     * <dt>user.home            <dd>User home directory

     * <dt>user.dir             <dd>User's current working directory

     * <dt>gnu.cpu.endian       <dd>"big" or "little"

     * </dl>

     *

     * @param properties the Properties object to insert the system properties into

     */

    static native void preInit(Properties properties);

    /**

     * Here you get a chance to overwrite some of the properties set by

     * the common SystemProperties code. For example, it might be

     * a good idea to process the properties specified on the command

     * line here.

     */

    static void postInit(Properties properties)

    {

    }

}