<!doctype html public "-//IETF//DTD HTML/EN"><html><head><!--   Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.  This code is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 only, as published by the Free Software Foundation.  Oracle designates this particular file as subject to the "Classpath" exception as provided by Oracle in the LICENSE file that accompanied this code.  This code 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 version 2 for more details (a copy is included in the LICENSE file that accompanied this code).  You should have received a copy of the GNU General Public License version 2 along with this work; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.  Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA or visit www.oracle.com if you need additional information or have any questions. --></head><body bgcolor="white"><p>Provides the implementation classes for the <em>rmi:</em> protocol forthe HotSpot PerfData instrumentation buffer monitoring implementation.</p><p>The <em>rmi:</em> protocol is the default protocol for the PerfDataimplementation when a hostname is specified as part of a HostIdentifieror VMIdentifier. It communicates with an RMI server on the remote machinethat provides functions to get a list of available Java Virtual Machinesand to acquire a copy of a Java Virtual Machine's instrumentation buffer.The RMI server may or may not use the PerfData implementation on theremote host to acquire this information. The <em>jstatd</em> serverprovides a PerfData implementation of the RMI server.</body></html>