?? vmsystemproperties.java
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/* VMSystemProperties.java -- Allow the VM to set System properties. Copyright (C) 2004 Free Software FoundationThis file is part of GNU Classpath.GNU Classpath is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe 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, butWITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNUGeneral Public License for more details.You should have received a copy of the GNU General Public Licensealong with GNU Classpath; see the file COPYING. If not, write to theFree Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307 USA.Linking this library statically or dynamically with other modules ismaking a combined work based on this library. Thus, the terms andconditions of the GNU General Public License cover the wholecombination.As a special exception, the copyright holders of this library give youpermission to link this library with independent modules to produce anexecutable, regardless of the license terms of these independentmodules, and to copy and distribute the resulting executable underterms of your choice, provided that you also meet, for each linkedindependent module, the terms and conditions of the license of thatmodule. An independent module is a module which is not derived fromor based on this library. If you modify this library, you may extendthis exception to your version of the library, but you are notobligated to do so. If you do not wish to do so, delete thisexception 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 p 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 native void postInit(Properties properties);}
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