Bug#894354: postgis-java build depends on openjdk-8-jdk-headless

[Adrian Bunk]

Source: postgis-java
Version: 1:2.2.1-5
Severity: serious

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

Build-Depends-Indep: default-jdk-headless,
                     openjdk-8-jdk-headless | java7-sdk-headless,

Java 7 is even in jessie, I wonder whether the second line here
could just be removed with default-jdk-headless already covering
the required JDK in all cases.