Help with Java and running a webclient

[NinjaSnowmans]

Ok guys, I'm running Mac OSX Leopard, and I'm trying to run a webclient that uses Java. My Java appears to be up to date and everything, but it will never load. I keep getting error messages, like this one: java.lang.UnsupportedClassVersionError: Bad version number in .class file

I've tried multiple browsers (Safari, Firefox, Chrome, Opera, Camino, Seamonkey, IE) but nothing is working. Help me out?

 

[svenwillmann]

can you give us some more information on this

what do you mean by “webclient”, I suspect you are talking about an Applet?
It can be that the “webclient” you are trying to run is compiled with a later version than you are trying to run it in

can you post the output of the following terminal command:
...$ java -version

can we view the “webclient” eg. do you have an internet address or just more info on it

 

[sgjohnston]

Sounds like either the applet is corrupt, or has been built with Java 1.7, which is not released yet and will not run with Java 1.6 (6.0).

Stuart