From: "Jeremy Nix" <[EMAIL PROTECTED]>
This NullPointerException appears to be coming from with the FOP internals, but I'm unsure of what the actual cause is. I was not receiving this problem until I recently switched from XSLT to XSLTC, and the problem does not always arise. I'm caching both my compiled templates, and my drivers, but the drivers I make sure to reset after each use. Just curious if someone else has come across this type of error:
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Caused by: java.lang.NullPointerException at org.apache.fop.render.pdf.FontSetup.addToResources(FontSetup.java:240) at org.apache.fop.render.pdf.PDFRenderer.stopRenderer(PDFRenderer.java:249) at org.apache.fop.apps.StreamRenderer.stopRenderer(StreamRenderer.java:204) at org.apache.fop.fo.FOTreeBuilder.endDocument(FOTreeBuilder.java:246)
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Sounds like a threading issue. The configuration for FOP is held in static variables. And since its falling over on the font stuff it sounds like the statics are getting corrupted. Possibly by two simultaneous calls to the Options constructor.
You didnt give much info on your environment, are running FOP in a Mulit-threaded environment? What version of FOP you are using. I'm assuming 0.20.5.
Chris
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