Did you pay attention that java-package only supports tar.gz binary
I just tested it on wheezy as well :
> make-jpkg jdk-7u6-linux-x64.tar.gz
The Debian package has been created in the current directory. You can
install the package as root (e.g. dpkg -i
Please attach the full command and output if you still encounter this
This is the maintainer address of Debian's Java team
debian-j...@lists.debian.org for discussions and questions.