Java wants to download an older version

[Ric Moore]

On Mon, 2010-08-16 at 19:15 +0200, Perry wrote:
> Hi,
> 
> running Karmic Kubuntu and Java 1.6.0.20 I tried to open a .JNLP and got the 
> message (translated from French):
> _The application must download an older version of Java
> _Do you want to continue?
> _The required version 1.5+ of Java is not the most recent ...
> 
> I tried to edit a line ( <j2se version="1.5+" /> ) to make it 1.6+ with the 
> same result.
> After I mailed to the guy who wrote this .JNLP file, he thought 1.5+ meant all 
> versions of 1.5 (not familiar with Java, I cannot agree or disagree on this 
> point, but see later...). So he added two resources lines with 1.6+ and 1.7+ 
> saying it works perfectly on "the server"...but I still had the same message 
> *on KUbuntu*
> 
> *I ask this on this list* because on M$, with the same Java version1.6.0.20 I 
> had no problem using the first .JNLP file that only mentioned 1.5+ 
> 
> 
> I had some hits googling, but nothing that seemed promising either as as cure 
> nor to help me understand the problem (M$ users also had this message)
> 
> 
> The questions I have:
> 1) Does downloading an older version mean installing it (downgrading)?
> 2) Can I find out which older version the application wants to download?
> 3) Can anyone here provide useful input?
> 
> N.B. I'm pretty reluctant to change anything about Java because it has always 
> been quite problematic for me and now it works for all the other stuff I 
> checked. For example Installing 1.7 isn't an option because the .JNLP is 
> supposed to work from Java 1.5 on.

Can you install the source file and then compile it with ant?? Ric