| /* VMRuntimeMXBeanImpl.java - VM implementation of an runtime bean |
| Copyright (C) 2006, 2010 Free Software Foundation, Inc. |
| |
| 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.java.lang.management; |
| |
| import gnu.classpath.SystemProperties; |
| |
| /** |
| * Provides access to information about the virtual machine. |
| * |
| * @author Andrew John Hughes (gnu_andrew@member.fsf.org) |
| * @since 1.5 |
| */ |
| final class VMRuntimeMXBeanImpl |
| { |
| |
| private VMRuntimeMXBeanImpl() {} // Prohibits instantiation. |
| |
| /** |
| * Returns the command-line arguments supplied |
| * to the virtual machine, excluding those supplied |
| * to <code>main()</code>. |
| * |
| * @return the command-line arguments. |
| */ |
| static native String[] getInputArguments(); |
| |
| /** |
| * Returns a developer-chosen name for the virtual |
| * machine, which may differ over different running |
| * instances of the same virtual machine binary. |
| * For example, this may include the particular |
| * process identifier used by this instance or |
| * the host name of the machine on which it is |
| * running. The intention is that this name refers |
| * to the precise entity that the other data supplied |
| * by the bean refers to, rather than the VM in general. |
| * |
| * @return the custom name of the VM. |
| */ |
| static String getName() |
| { |
| return SystemProperties.getProperty("java.vm.name") + " " + |
| SystemProperties.getProperty("java.vm.version"); |
| } |
| |
| /** |
| * The time in milliseconds at which the virtual |
| * machine was started. This method is only executed |
| * once (for efficency), as the value is not expected |
| * to change. |
| * |
| * @return the VM start time. |
| */ |
| static native long getStartTime(); |
| |
| } |