Detecting errors in rendering

[Richard Evans]

I’m running FOP in a servlet to convert .fo files to PDFs.  I need to detect whether the render job had any errors.   I’ve tried implementing my own Logger and using Driver.setLogger and this does catch some errors.  However other errors (bad property formats, etc) seem to be reported via the static ‘screen logger’.  I don’t see how I can use the screen logger safely in a multi-threaded environment.   Richard