When emerging datavision it tries to use itext.jar from its dependency itext-1.4.7-r1 (which is stable in a few minutes on x86). That file does not exist, it is called iText.jar, so the import line must be java-pkg_jar-from itext iText.jar
Problem caused by: # java-config -p itext /usr/share/itext/lib/iText.jar:/usr/share/itext/lib/classes which is caused by java-pkg_dojar build/bin/* in itext-1.4.7-r1
Fixed in itext-1.4.7-r2, thanks.