[Debian-med-packaging] Bug#894359: beast2-mcmc build depends on openjdk-8-jdk

[Adrian Bunk]

Source: beast2-mcmc
Version: 2.4.4+dfsg-1
Severity: serious
Tags: buster sid

beast2-mcmc build depends on openjdk-8-jdk, which is not expected
to be part of the buster release.

If possible, this should be changed to default-jdk
(this currently depends on openjdk-9-jdk).

In a semi-related note, the beast2-mcmc runtime dependency
  openjdk-8-jre | java8-runtime
should be
  default-jre | java8-runtime