New comment by benalb on void-packages repository

https://github.com/void-linux/void-packages/issues/28246#issuecomment-767727593

Comment:
xbps-query -s jdk

```
[*] openjdk-jre-8u999_1     OpenJDK Java Development Kit (meta) - runtime components
[*] openjdk11-11.0.9+4_1    OpenJDK Java Development Kit
[*] openjdk8-jre-8u272b02_1 OpenJDK Java Development Kit (version 8) - runtime components
```

xbps-alternatives -l|grep jdk|grep current
 - openjdk8-jre (current)
 - openjdk11 (current)