jvisualvm Command to Open Dump Files or Conections

Java Tools Tutorials - Herong's Tutorial Notes

∟jvisualvm (Java VisualVM) - JVM Visual Tool

∟jvisualvm Command to Open Dump Files or Conections

This section describes the Java VisualVM 'jvisualvm' command options. '--openfile', '--openpid' and '--openjmx', allows you to start Java VisualVM and opens a dump file, or a connection to JVM process on the local machine or on a remote machine through JMX.

To learn how to use jvisualvm (Java VisualVM), let's look at it's command line options:

C:\herong>\Progra~1\java\jdk1.8.0\bin\jvisualvm -help

The launcher has determined that the parent process has a console and
will reuse it for its own console output.
Closing the console will result in termination of the running program.

Use '--console suppress' to suppress console output.
Use '--console new' to create a separate console window.

Usage: launcher {options} arguments

General options:
--help                show this help
--jdkhome <path>      path to JDK
-J<jvm_option>        pass <jvm_option> to JVM

--cp:p <classpath>    prepend <classpath> to classpath
--cp:a <classpath>    append <classpath> to classpath

--fork-java           run java in separate process
--trace <path>        path for launcher log (for trouble shooting)

--console suppress    supppress console output
--console new         open new console for output

Module reload options:
  --reload /path/to/module.jar  install or reinstall a module JAR file

Additional module options:
--openfile <arg>      open file specified by <arg>, file can be 
                      Application snapshot, NetBeans Profiler 
                      snapshot or HPROF heap dump.
--openpid <arg>       open application with process id <arg>
--openid <arg>        open application with id <arg>
--openjmx <arg>       open application specified by JMX connection 
                      (host:port)

Core options:
--laf <LaF classname> use given LookAndFeel class instead of the 
                      default
--fontsize <size>     set the base font size of the user interface, 
                      in points
--locale <language[:country[:variant]]> use specified locale
--userdir <path>      use specified directory to store user settings
--cachedir <path>     use specified directory to store user cache, 
                      must be different from userdir
--nosplash            do not show the splash screen

The most useful options are "--openfile", "--openpid" and "--openjmx", which allows you to start Java VisualVM and opens a dump file, or a connection to JVM process on the local machine or on a remote machine through JMX.

If you run jvisualvm with no option, it will start Java VisualVM with the default screen with controls to open files and connections later.

Last update: 2015.

Table of Contents

About This Book

Java Tools Terminology

Installing Java 8 on Windows

'javac' - The Java Program Compiler

'java' - The Java Program Launcher

'jdb' - The Java Debugger

'jconsole' - Java Monitoring and Management Console

'jstat' - JVM Statistics Monitoring Tool

JVM Troubleshooting Tools