I'm hitting this too. I can't hard-code /usr/share/java/ant-contrib.jar in my build.xml because the project also needs to be built on non-Debian machines (that put ant-contrib.jar elsewhere) too.
I'm working around this by bundling the ant-contrib jar in my project so that I can reference it with a build.xml-relative path. __ This is the maintainer address of Debian's Java team <http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-java-maintainers>. Please use debian-j...@lists.debian.org for discussions and questions.
