Get PID w/o JNI

[Robert M. Gary]

Does anyone know of a way to get the JVM's process ID (Windows and UNIX) w/o
using JNI? Does 1.5 have an interface for this?

-Robert

 

[Lisa]

Does anyone know of a way to get the JVM's process ID (Windows and UNIX) w/o
using JNI? Does 1.5 have an interface for this?

-Robert

On windows XP the command is tasklist.

 

[Gordon Beaton]

Does anyone know of a way to get the JVM's process ID (Windows and
UNIX) w/o using JNI? Does 1.5 have an interface for this?

Here are three general solutions for Unix, one specific for Linux:

- run your program from a shell script like this, then get the pid
from the property:

#!/bin/sh
exec java -Dpid=$$ MyApp

- run a child process that can tell you the pid of its parent:

String[] cmd = { "/bin/bash", "-c", "echo $PPID" };
Process p = Runtime.getRuntime().exec(cmd);

then read the pid from p's InputStream.

- run ps from Runtime.exec() and parse the output.

- on Linux you can get your pid from the process file system. Use a
FileReader to read /proc/self/stat. Other unices have similar
factilities, however many use a binary format that isn't so easily
parsed from Java.

/gordon

 

[Michiel Konstapel]

And the word of the day is

factilities

fac·til·i·ty
n. pl. fac·til·i·ties

A utility that provides supposedly useful facts.


SCNR,
Michiel