Oh... this has been reproduce on trusty machine, I asked for a sync request of tomcat7, and the buildd failed to build from source https://launchpadlibrarian.net/167631874/buildlog_ubuntu-trusty-i386.tomcat7_7.0.52-1_FAILEDTOBUILD.txt.gz
I don't know the rationale of this problem, because I cannot reproduce in my local pbuilder environment Gianfranco
