Question about FOP 0.94 and 0.20.5

[Juanjo Alejandro <ju...@gmail.com>]

I try to run in a seem application the two versions of fop 0.94 and
0.20.5.I rebuild version FOP 0.94 changing the names of folders
(org.apache.fop by
org.jcom.fop) and jars to let de ClassLoader upload both librarys. As a
result I get an error of type class not definition found for FopFactory and
another strange errors.
Is it posible to run both versions togheter?


Thanks In advance

Juanjo

Re: Question about FOP 0.94 and 0.20.5

[Andreas Delmelle <an...@telenet.be>]

On May 6, 2008, at 18:00, Juanjo Alejandro wrote:
> I try to run in a seem application the two versions of fop 0.94 and  
> 0.20.5. I rebuild version FOP 0.94 changing the names of folders  
> (org.apache.fop by org.jcom.fop) and jars to let de ClassLoader  
> upload both librarys. As a result I get an error of type class not  
> definition found for FopFactory and another strange errors.
> Is it posible to run both versions togheter?

AFAIK, this will always cause trouble.
Both versions are not meant to work together inside the same VM, and  
definitely not when loaded by the same ClassLoader.

Anyways, modifying the sources to try to work around this limitation  
would be a bit too invasive for my taste.
A workaround you might consider is to set up a second container that  
hosts the old version. That one can then be phased out over time once  
you're certain that 0.94 suits your needs, and this is one sure way  
to keep both versions completely isolated from each other.


HTH!

Cheers

Andreas