Re: [gentoo-user] Java apps in 64 bit JVM?

[Mark Knecht]

On Mon, Jun 29, 2009 at 9:37 AM, Alan McKinnon<alan.mckinnon@×××××.com> wrote:
> Hi all,
>
> The company has a Juniper Secure Connect VPN and I run amd64. The process is:
> log in via a web page in a browser, click a button and the page starts a java
> APP to create the ssl tunnel - a full blown Swing app, not a mere applet.
>
> I've only ever got this Java app to run in 32 bit Firefox with the java-x86-
> emul package. 64 bit Firefox, Konqueror, Opera all fail. I've tried sun-jdk,
> sun-jre (nsplugin and nsplugin-2), blackdown and icedtea.
>
> The only thing that works is firefox-bin with a 32bit jvm. The app doesn't do
> much in the way of logging so I don't know why it's failing. This strikes me
> as odd:
>
> A java app is bytecode that is independent of platform. It should make no
> difference whether a 32bit or 64bit jvm executes the bytecode as the format of
> the Java Virtual Machine and it's bytecode is constant.
>
> Surely?
>

Alan,
   I can only echo your frustrations. I don't have a 64-bit Windows
installation to test but I've run into numerous web sites that make
use of Java and never found an installation for my 64-bit Gentoo that
works as well as my wife's 32-bit Gentoo. Maybe things work perfectly
fine on both machines but numerous ones fail on mine and when tested
on my wife's seem to work fine. Things like buttons, selection check
marks, stock charts and other things that specific sites were doing in
Java tended to be where I had trouble.

   Along these lines was part of the reason I posed a question some
weeks ago on the Gentoo-64-bit list about the possibility of using a
64-bit kernel but building all apps as 32-bit. (Not my idea - picked
it up on LKML.)

   Good luck and keep us posted. I hope you make progress.

Cheers,
Mark