the line that separates the 2 paragraphs of the package's description
has been recently modified from a line containing only a single dot to
one that has 2 dots.
As a results that is not recognized as a proper paragraph separator and
- as you can see here  - the paragraphs are shown as ones (with some
strange double dots in the middle).
This is the maintainer address of Debian's Java team
debian-j...@lists.debian.org for discussions and questions.