jcmd

jcmd exposes class, thread, and JVM internals metrics.

Usage: jcmd <PID> <command>, where <command> is one of (non-exhaustive):

  • JFR.start
  • JFR.stop
  • JFR.check
  • JFR.dump
  • VM.uptime
  • VM.system_properties
  • VM.command_line
  • VM.flags [-all]
  • VM.stringtable [-verbose]
  • VM.symboltable [-verbose]

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