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jeremybenn |
/* VMSystemProperties.java -- Allow the VM to set System properties.
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Copyright (C) 2004 Free Software Foundation
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath;
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import java.util.Properties;
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class VMSystemProperties
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{
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/**
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* Get the system properties. This is done here, instead of in System,
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* because of the bootstrap sequence. Note that the native code should
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* not try to use the Java I/O classes yet, as they rely on the properties
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* already existing. The only safe method to use to insert these default
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* system properties is {@link Properties#setProperty(String, String)}.
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*
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* <p>These properties MUST include:
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* <dl>
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* <dt>java.version <dd>Java version number
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* <dt>java.vendor <dd>Java vendor specific string
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* <dt>java.vendor.url <dd>Java vendor URL
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* <dt>java.home <dd>Java installation directory
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* <dt>java.vm.specification.version <dd>VM Spec version
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* <dt>java.vm.specification.vendor <dd>VM Spec vendor
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* <dt>java.vm.specification.name <dd>VM Spec name
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* <dt>java.vm.version <dd>VM implementation version
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* <dt>java.vm.vendor <dd>VM implementation vendor
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* <dt>java.vm.name <dd>VM implementation name
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* <dt>java.specification.version <dd>Java Runtime Environment version
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* <dt>java.specification.vendor <dd>Java Runtime Environment vendor
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* <dt>java.specification.name <dd>Java Runtime Environment name
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* <dt>java.class.version <dd>Java class version number
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* <dt>java.class.path <dd>Java classpath
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* <dt>java.library.path <dd>Path for finding Java libraries
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* <dt>java.io.tmpdir <dd>Default temp file path
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* <dt>java.compiler <dd>Name of JIT to use
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* <dt>java.ext.dirs <dd>Java extension path
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* <dt>os.name <dd>Operating System Name
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* <dt>os.arch <dd>Operating System Architecture
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* <dt>os.version <dd>Operating System Version
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* <dt>file.separator <dd>File separator ("/" on Unix)
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* <dt>path.separator <dd>Path separator (":" on Unix)
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* <dt>line.separator <dd>Line separator ("\n" on Unix)
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* <dt>user.name <dd>User account name
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* <dt>user.home <dd>User home directory
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* <dt>user.dir <dd>User's current working directory
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* <dt>gnu.cpu.endian <dd>"big" or "little"
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* </dl>
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*
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* @param properties the Properties object to insert the system properties into
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*/
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static native void preInit(Properties properties);
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/**
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* Here you get a chance to overwrite some of the properties set by
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* the common SystemProperties code. For example, it might be
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* a good idea to process the properties specified on the command
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* line here.
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*/
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static void postInit(Properties properties)
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{
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}
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}
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