Issue is this: http://bugs.jython.org/issue1537 2.5 patch: http://hg.python.org/jython/raw-rev/a972112ac1b1 Fixed in both upstream branches and latest 2.5.3 release.
Created attachment 321574 [details] Build Log
Fixed in Tree +*jython-2.5.2-r2 (26 Aug 2012) + + 26 Aug 2012; Ian Whyman <thev00d00@gentoo.org> -jython-2.5.2-r1.ebuild, + +jython-2.5.2-r2.ebuild, + +files/jython-2.5.2-sax-parser-class-not-found.patch: + Add patch to fix SAXParser ClassNotFoundException #431754 + Jython 2.5.3 includes this fix.