Java Penetration Statistics

brackeen · March 12, 2009, 7:10pm

Yet another detection script:
http://www.brackeen.com/detectJava/

Works on Safari+Win (at least on my machine
Doesn’t require external scripts

Matzon · March 12, 2009, 7:47pm

I see the test for MSVM, but it still finds the java 1.6 one

[quote]Java: 1.6
Complete string found: 1.6.0_12
isPlugin2: true
Detected from: JavaPlugin
[/quote]
it didn’t find the oCaps stuff … (never heard of it before!!)
However, once I added;

[quote]
[/quote]
it worked!!

Matzon · March 12, 2009, 7:48pm

however, it will find java2 plugin first - but if I comment that out, I get:

[quote]Java: 1.1
Complete string found: 1.1
isPlugin2: false
Detected from: MSVM
[/quote]

brackeen · March 12, 2009, 7:59pm

Yeah that script will try to find the highest version installed. So theoretically it will find the MSVM if no Sun Java is installed

I dunno about the oClientCaps stuff… I just copied it from somewhere. Got any solution that doesn’t require setting the body id?

Matzon · March 12, 2009, 8:25pm

this seems to work:
<IE:clientCaps ID=“oClientCaps” STYLE=“behavior:url(#default#clientCaps)”/>

and is ignored by FF and others (opera, chrome) - all windows (all I have atm)

http://msdn.microsoft.com/en-us/library/ms531416(VS.85).aspx

brackeen · March 12, 2009, 8:44pm

Awesome. Updated the script.

bienator · March 12, 2009, 9:31pm

stopped working for me on safari but detects java on all other browsers i tested so far. great work!

brackeen · March 12, 2009, 10:10pm

Safari’s working again. Good ol’ try/catch saves the day.

DzzD · March 12, 2009, 10:18pm

maybe it would be cool to post an how to or something like that just a small html sample of the best working solution

brackeen · March 12, 2009, 11:44pm

I dunno if this is the best working solution, but I’m trying it with Google Analytics now. It will take a day or so for the stats to show up. Here’s what I’m doing:

Get a copy of this script on your site:
http://www.brackeen.com/detectJava/detectJava.js
After your GA script do something like this:

<script src="http://mysite/js/detectJava.js" type="text/javascript"></script>
<script type="text/javascript">
if (typeof pageTracker != "undefined") {
    var version = detectJava.getVersion();
    if (version == "1.6" && detectJava.isPlugin2()) {
        version = "1.6uN";
    }
    pageTracker._trackEvent("java", "version", version);
}
</script>

It will be interesting to compare it to some of my server-side logs if there is an discrepancy. I’ll re-post when I have info.

bienator · March 13, 2009, 12:06am

&& detectJava.isPlugin2()

i am not sure if this will work. deploymentToolkit.isPlugin2() returns only true when the deployment plugin is installed and the deployment plugin is AFAIK only available on windows.

for example dragable applets work perfectly on linux despite the missing deployment plugin which would mean 6uN compatible. (don’t ask me whats the technical difference between the deployment plugin and plugin2 and why its not the same thing)

kappa · March 13, 2009, 7:19am

wow awesome work, looks like this is probably the best way to detect java.

Matzon · March 13, 2009, 9:01am

just some more results:

I am not sure when the liveconnect part kicks in - because at one point it did after 3 reloads?

That said, this is a huge improvement!

Riven · March 13, 2009, 9:19am

Opera 9.64:

Says: 1.6.0u7 while 1.6.0u12 is running (according to javaconsole).

Detection-type = MimeType

brackeen · March 13, 2009, 4:04pm

Cool, I updated the script that should fix a few of the problems here. I think it was reporting 1.1 in a few cases where the machine had a higher version.

bienator:

&& detectJava.isPlugin2()
i am not sure if this will work. deploymentToolkit.isPlugin2() returns only true when the deployment plugin is installed and the deployment plugin is AFAIK only available on windows.

for example dragable applets work perfectly on linux despite the missing deployment plugin which would mean 6uN compatible. (don’t ask me whats the technical difference between the deployment plugin and plugin2 and why its not the same thing)

Ah, good to know. But, really I want to detect new plugin features like the animated splash, java_arguments, separate_jvm, etc. I’m assuming isPlugin2() is the best way to detect that?

bienator · March 13, 2009, 4:44pm

i don’t know. But I don’t think there are many windows user who explicitly disable the plugin2 and ubuntu should fix plugin2 installation in the next release. Thats why I simply assume that plugin2 is available when 6u10 or later was detected.

trembovetski · March 13, 2009, 4:47pm

[quote]Thats why I simply assume that plugin2 is available when 6u10 or later was detected.
[/quote]
I believe plugin2 won’t be used on FF pre-2, and IE pre-7. Do you have that logic as well?

BTW, I reported issues with the deployment toolkit java detection to the engineers (and pointed to this thread)…

Dmitri

brackeen · March 14, 2009, 1:57pm

Here’s the results for running the script for one day on pulpgames.net (which has two Java 1.4 games). 1266 unique events.
Since it’s a game site the users w/o Java are lower than average.

1.6uN	558	40.11%	
1.6	479	41.71%	
1.5	127	10.39%	
Unknown	56	4.60%
1.4	22	1.60%	
1.1	15	1.00%
1.3	9	0.60%

92% of the users in the sample have Java 1.5 or higher. Sweet! The only surprise to me is that 1.4 usage is as low as it is.

The only thing I did that might be useful is a way to detect the Java version on Safari+Win. (Calling java.lang.System.getProperty(“java.version”) doesn’t work). Rather than explain it, here it is:

getHighestInstalledViaLiveConnect: function() {
        // Call version-specific methods until something breaks.
        // Only known method that works on Safari/Windows
        var version = "0.0";
        document.write('<applet id="javaDetectApplet" code="java.applet.Applet" ' +
            'width="0" height="0" name="Java" ' +
            'style="visibilty: hidden; display: none" ' +
            'mayscript="true"></applet>');
        var a = document.getElementById('javaDetectApplet');
        if (a != null) {
            try {
                a.isEnabled();
                version = "1.1";
            }
            catch (e11) {
                return version;
            }
            try {
                a.getAccessibleContext();
                version = "1.3";
            }
            catch (e13) {
                return version;
            }
            try {
                a.isBackgroundSet();
                version = "1.4";
            }
            catch (e14) {
                return version;
            }
            try {
                a.isPreferredSizeSet();
                version = "1.5";
            }
            catch (e15) {
                return version;
            }
            try {
                a.getBaselineResizeBehavior();
                version = "1.6";
            }
            catch (e16) {
                return version;
            }
        }
        return version;
    },

DzzD · March 14, 2009, 2:47pm

great, I will use your script on my own website soon, is that the final version ?

I wouldn’t worry about Java1.4 as you said it is a game website, and I really beleave that Java stats on such websites are sligly different then the reality => more Java and more Java 1.6

related to the way you detect Java on Safari + Win, It maybe a good idea when Java is not detected by JavaScript to use this technic it wont be really annoying for visitors as there are few one that doesn’t have Java and if there is no java it wont do anything.

So what about when Java is not detected to write an applet and query the version within it ?

kappa · March 14, 2009, 2:58pm

yup did a similar thing here, basically wait 10 seconds for java to responded via live connect, if it doesn’t assume it isn’t available. Works on all browsers including safari and konqueror.