reassign -1 maven-plugin-tools
The missing dependency is on the maven-plugin-tools package and not
maven-debian-helper. maven-plugin-tools 3.2 has a new artifact that post
process the compiled classes to find plugin annotations and generate the
plugin descriptor, and this processing uses asm.
This is the maintainer address of Debian's Java team
debian-j...@lists.debian.org for discussions and questions.