[Exist-open] How to sub Saxon 9.1.0.7 for the installed 9.2.1.5?

[alex <aly...@ya...>]

Back on July 27:

> Am Mittwoch, 27. Juli 2011, 13:54:05 schrieb Torsten Schassan:
>>> I installed the latest pre-release (1.4.1 rev 14877) on an XP
>>> machine. I started exist manually, calling bin\startup.bat. I
>>> uploaded all my data, config, apps etc which worked fine. I
>>> stopped the machine once and cannot get it up and running again,
>>> it starts with the message below and I cannot access the db
>>> anymore. Any hints anyone?
>>
>> after a lot of testing I found out that I experience the problem
>> described yesterday only then if I copy saxon to the lib/endorsed
>> folder. (I tried saxon9he.) If I remove Saxon, exist will startup
>> normally. Any suggestions to this?
>
> Saxon should already be present in your installation
> (EXIST-HOME/extensions/betterform/src/main/lib/saxon-9.2.1.5.jar).
> It is also added to the classpath as we need if for betterFORM. So
> to get xslt2 running in eXist you should only have to change
> conf.xml.

This could be a potentially fatal problem for me; saxon-9.2.1.5 is 
crippled (no extension functionality, and i'm heavily dependent on 
java.lang.Math), so i need to use saxon-9.1.0.7 at the latest.  Simply 
replacing saxon-9.2.1.5.jar with those of the working version results in 
the InvocationTargetException described in July's thread;  adding the 
saxon-9.1.0.7 jars in addition to saxon-9.2.1.5.jar doesn't work either, 
as eXist seems to perform transforms with 9.2.1.5 and i get errors.  Any 
possible ways around this?

--alex.

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