I found the root cause of this issue. It is the structure of the tar.gz that is problematic. I have submitted a patch to upstream build.xml at [1]. But untill it is fixed upstream I will have to patch build.xml in Debian packaging.
[1] https://sourceforge.net/tracker/?group_id=20024&atid=320024 Cheers, Onkar -- Passion - Some people climb mountains - others write Free software. Don't ask why - the reason is the same. __ 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.