This changeset aims to add a first set of diagnostic commands
to the HotSpot JVM. It also includes minor modifications to
the diagnostic command framework implementation to ease
development of new diagnostic commands.

The webrev is here:

http://cr.openjdk.java.net/~fparain/7120511/webrev.00/


Here's the list of new diagnostic commands:

Thread.print
        Print all threads with stacktraces.

GC.class_histogram
        Provides statistics about the Java heap usage

GC.heap_dump
        Generate a HPROF format dump of the Java heap

GC.run_finalization
        Call java.lang.System.runFinalization().

GC.run
        Call java.lang.System.gc().

VM.uptime
        Print VM uptime.

VM.flags
        Print VM flag options and their current values.

VM.system_properties
        Print system properties

VM.command_line
        Print the command line used to start this VM instance.


Thanks,

Fred

--
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: frederic.par...@oracle.com

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