DOCBOOK-APPS: com.nwalsh.saxon.ImageIntrinsics getWidth() and X11window servers

[Eric Bosch <eric at datafax dot com>]

I am using DocBook XSL stylesheets 1.52.2, saxon 6.4.4, and the 
saxon644.jar extensions.  I build documentation (interactively and via 
cron) on both Mac OS X (Darwin) and Solaris 8 with use.extensions set to 
1 (plus a host of other parameter settings).  Since moving to 1.52.2, my 
cron builds on Solaris fail with the following message:

Error at xsl:value-of on line 199 of 
file:/devel/docbook/html/graphics.xsl:
  Exception in extension function java.lang.InternalError: Can't connect 
to X11 window server using ':0.0' as the value of the DISPLAY variable.
Transformation failed: Run-time errors were reported

whenever a DocBook document containing the imagedata element is 
encountered.

No amount of setting of the DISPLAY variable in the cron environment 
will make this error go away.  If I start an X11 desktop on the Solaris 
8 machine directly and execute the build, everything is fine.

Looking at the extensions code, my guess is that the call to 
getDefaultToolkit() in the ImageIntrinsics code is returning X11 as the 
toolkit of choice, and this combined with the lack of an X11 display in 
the cron environment is subsequently leading to the error when the 
simg:getWidth() extension function is called.

This used to work with 1.4X versions of the XSL stylesheets (1.52.2 is 
the first 1.5X version that I've used) and continues to work under 
1.52.2 and Darwin.

Any pointers are greatly appreciated.

Eric
--------------
Eric Bosch
Clinical DataFax Systems Inc.
Voice: 905.522.3282.x223
Fax: 905.522.7284
Email: mailto:eric@datafax.com
Web: http://www.datafax.com