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Provides the implementation classes for the <em>rmi:</em> protocol for
the HotSpot PerfData instrumentation buffer monitoring implementation.
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The <em>rmi:</em> protocol is the default protocol for the PerfData
implementation when a hostname is specified as part of a HostIdentifier
or VMIdentifier. It communicates with an RMI server on the remote machine
that provides functions to get a list of available Java Virtual Machines
and to acquire a copy of a Java Virtual Machine's instrumentation buffer.
The RMI server may or may not use the PerfData implementation on the
remote host to acquire this information. The <em>jstatd</em> server
provides a PerfData implementation of the RMI server.
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