Openchemlib and Java 25

Dear Maintainers,

The package fails to build with Java 25[1]. The issue is relatively
straightforward to resolve - upgrading to 2026.1.4 is straightforward
(import the tarball, refresh patches, and add javafx-swing and
javafx-web dependencies).

The main obstacle, however, is the licensing concern: the updated
d/copyright includes an instance of a non-free license[2],  which may
not comply with Debian Free Software Guidelines.

Can you please advise on the best course of action regarding this package?

Best Regards,
Vladimir.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1108586
[2] https://salsa.debian.org/java-team/openchemlib/-/blob/master/debian/copyright?ref_type=heads#L80