On 20 Jul 2011, at 19:02, Lance Goforth wrote:

Hi Lance

> I've seen this message on the groups and online discussed - but never any 
> answers.

Indeed, and from the looks of it, it is already occurring since 2002 
(references to FOP 0.1x?)... 
There are no answers, probably because no one ever succeeded in nailing down 
the set of parameters to reliably reproduce it, and allow us to trace it down 
further. 

Let's see if we can get there.

What FOP version are you on exactly?

> I have an embedded system, that generates fo and pdf output from xsl.  It 
> opens the output first in the AWT renderer window.  I'd say 90-95% of the 
> time that is fine.  But recently (and increasingly) it has started throwing 
> the 'No default font defined by OutputConverter' error.

Interesting... If I read you correctly, you seem to mean that it was 'better' 
in the past. Do you know of any relevant variables that have changed over time? 
A Java/FOP upgrade, or some such?

> Normally the user just has to re-run the report.  But these are automatically 
> generated for the user, and they have to go back in and find the spot to 
> recreate, so it's quite a pain for them.

Is it correct to infer from 'automatically generated' that the process runs in 
a servlet container? If yes, do you know if the number of concurrently spawned 
sessions has increased by a significant amount (more users)?

One thing is not entirely clear to me: 
Is the error thrown when rendering to PDF, AWT, or both intermittently?


Regards,

Andreas
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