By pelegri on Jun 01, 2007
You now can use Woodstox (not to confuse with Woodstock) with GlassFish. Woodstox is a very nice implementation of StAX and provides substantial performance improvements over SJSXP in almost all cases. We noticed this a while ago and we have been working to ensure that Woodstox passed all the StAX tests and all our own tests.
Check Bhakti's instructions on how to configure GlassFish and read on Santiago's comments. "Your mileage may vary", but we are measuring 30-40% improvement over the existing (already very good) performance!