Working with jcmd command

jcmd command is used to send diagnostic command requests to the JVM. 'jcmd' is available as part of the java installation.

Open command prompt (or) terminal and execute jcmd command. It display the list of currently running java applications and their process ids.

In my later posts, you are going to learn below things.

    Jcmd: Thread.print: Get thread dumps
    JFR: Java Flight Recorder
    jcmd: Collect JFR (Java Flight Recorder) information
    Java: jcmd: Print native memory usage
    jcmd: Display status of commercial features
    Jcmd: VM.unlock_commercial_features: unlock commercial features
    Jcmd: ManagementAgent.stop, ManagementAgent.start_local and ManagementAgent.start example
    jcmd: GC.heap_dump: Create heap dump
    Generate GC (Garbage Collection) log file
    Rotate GC Log files
    Jcmd: GC.rotate_log: Rotate the log file
    jcmd: GC.class_stats: Get statistics about Java class meta data
    jcmd: Get the statistics about the Java heap usage
    jcmd: GC.run_finalization: java.lang.System.runFinalization()
    Call 'java.lang.System.runFinalization()' using jcmd command
    jcmd : GC.run: Call garbage collector
    jcmd: VM.uptime: Print VM up time
    jcmd: VM.flags: Print VM flag options and their current values
    jcmd: VM.system_properties: Print VM system properties
    jcmd: VM.command_line: Get the command line used to start this VM instance
    jcmd: VM.version: Print jvm version information

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