Re: detecting which jvm version is being ran?

"yawnmoth" <>
28 Nov 2006 10:57:00 -0800
Mickey Segal wrote:

"Andrew Thompson" <> wrote in message


At we use the following code to get the maximal
information about the Java version:

    if ((System.getProperty("java.vendor").startsWith("Microsoft")))
        javaVersion = "java.version = " +
    else javaVersion = "java.vm.version = " +

The applet is unsigned and it works without security messages in any
environment that I've checked.

I'm using a technique similar to this, now, and am being told by
someone that it crashes their browser.

Here's my code:

import java.applet.*;
import java.awt.*;

public class ShowInfo extends Applet
    String output = "", javaVendor, javaVersion;

    public void start() {
        try {
            javaVendor = System.getProperty("java.vendor");
            javaVersion = javaVendor.startsWith("Microsoft") ?
System.getProperty("java.version") :
        } catch (Exception e) {

    public void paint(Graphics g) {

I tried it, myself, on IE6 with MSJVM 1.1 and FF2 with Sun JVM 1.5 and
both worked. I don't know what browser their using nor do I know the
JVM vendor / version (that's what this script was supposed to find

Any ideas? Maybe I should be using something more like what Arne
Vajh=F8j posted?

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