Revert ".travis.yml: Use Ubuntu 20.04 "Focal" environment"

This reverts commit 4d59c1a00d.

Something's wrong with Java 8 in Travis's Ubuntu Focal environment:

Expected feature release number in range of 9 to 16, but got: 8
This commit is contained in:
Alan Orth 2020-12-08 08:55:27 +02:00
parent 4d59c1a00d
commit 112cb8a133
Signed by: alanorth
GPG Key ID: 0FB860CC9C45B1B9

View File

@ -1,4 +1,4 @@
dist: focal dist: bionic
language: java language: java
jdk: jdk:
- openjdk8 - openjdk8