Bug#915504: sbt: Fails to detect version of java

[Matt Nottingham]

Package: sbt
Version: 0.13.13-2
Severity: grave
Justification: renders package unusable

When running 'sbt', for example 'sbt' or 'sbt --help', it immediately halts
with the following error:

  The java installation you have is not up to date
  requires at least version 1.6+, you have
  version 11.0 2018-10-16

  Please go to http://www.java.com/getjava/ and download
  a valid Java Runtime and install before running .

Which seems somewhat contradictory!

Thanks,

Matt

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages sbt depends on:
ii  default-jre [java9-runtime]     2:1.11-70
ii  libsbt-java                     0.13.13-2
ii  openjdk-10-jre [java9-runtime]  10.0.2+13-2
ii  openjdk-11-jre [java9-runtime]  11.0.1+13-3
ii  openjdk-8-jre [java8-runtime]   8u181-b13-2
ii  openjdk-9-jre [java9-runtime]   9.0.4+12-4

sbt recommends no packages.

sbt suggests no packages.

-- no debconf information